Swipe up or down to finish ViewImgurMediaActivity. Using Hauler to do swipe up or down to finish ViewImageActivity, ViewGIFActivity and ViewVideoActivity. Fixed gifs downloaded as jpg.

app/build.gradle

@@ -79,6 +79,7 @@ dependencies {
     implementation 'com.atlassian.commonmark:commonmark:0.13.1'
     implementation 'com.google.code.gson:gson:2.8.6'
     implementation 'me.zhanghai.android.fastscroll:library:1.1.2'
+    implementation("com.thefuntasty.hauler:core:3.1.0")
 
     def toroVersion = '3.7.0.2010003'
     implementation "im.ene.toro3:toro:$toroVersion"

app/src/main/AndroidManifest.xml

@@ -25,7 +25,7 @@
             android:name=".Activity.ViewImgurMediaActivity"
             android:configChanges="orientation|screenSize|layoutDirection"
             android:parentActivityName=".Activity.MainActivity"
-            android:theme="@style/AppTheme.ActionBar.Transparent" />
+            android:theme="@style/AppTheme.Draggable" />
         <activity
             android:name=".Activity.ReportActivity"
             android:label="@string/report_activity_label"
@@ -83,7 +83,7 @@
         <activity
             android:name=".Activity.ViewGIFActivity"
             android:parentActivityName=".Activity.MainActivity"
-            android:theme="@style/AppTheme.ActionBar.Transparent" />
+            android:theme="@style/AppTheme.Draggable" />
         <activity
             android:name=".Activity.AccountSavedThingActivity"
             android:label="@string/account_saved_thing_activity_label"
@@ -289,12 +289,12 @@
         <activity
             android:name=".Activity.ViewImageActivity"
             android:parentActivityName=".Activity.MainActivity"
-            android:theme="@style/AppTheme.ActionBar.Transparent" />
+            android:theme="@style/AppTheme.Draggable" />
         <activity
             android:name=".Activity.ViewVideoActivity"
             android:configChanges="orientation|screenSize|layoutDirection"
             android:parentActivityName=".Activity.MainActivity"
-            android:theme="@style/AppTheme.ActionBar.Transparent" />
+            android:theme="@style/AppTheme.Draggable" />
         <activity
             android:name=".Activity.ViewPostDetailActivity"
             android:parentActivityName=".Activity.MainActivity"

app/src/main/java/ml/docilealligator/infinityforreddit/Activity/ViewGIFActivity.java

@@ -1,15 +1,11 @@
 package ml.docilealligator.infinityforreddit.Activity;
 
 import android.Manifest;
-import android.animation.Animator;
-import android.animation.ArgbEvaluator;
-import android.animation.ValueAnimator;
 import android.app.DownloadManager;
 import android.content.Context;
 import android.content.Intent;
 import android.content.SharedPreferences;
 import android.content.pm.PackageManager;
-import android.graphics.PorterDuff;
 import android.graphics.drawable.ColorDrawable;
 import android.graphics.drawable.Drawable;
 import android.net.Uri;
@@ -19,11 +15,9 @@ import android.os.Environment;
 import android.text.Html;
 import android.view.Menu;
 import android.view.MenuItem;
-import android.view.MotionEvent;
 import android.view.View;
 import android.widget.LinearLayout;
 import android.widget.ProgressBar;
-import android.widget.RelativeLayout;
 import android.widget.Toast;
 
 import androidx.annotation.NonNull;
@@ -42,8 +36,7 @@ import com.bumptech.glide.load.resource.gif.GifDrawable;
 import com.bumptech.glide.request.RequestListener;
 import com.bumptech.glide.request.RequestOptions;
 import com.bumptech.glide.request.target.Target;
-import com.github.pwittchen.swipe.library.rx2.SimpleSwipeListener;
+import com.thefuntasty.hauler.HaulerView;
-import com.github.pwittchen.swipe.library.rx2.Swipe;
 
 import java.io.File;
 
@@ -68,8 +61,8 @@ public class ViewGIFActivity extends AppCompatActivity {
     public static final String FILE_NAME_KEY = "FNK";
     public static final String POST_TITLE_KEY = "PTK";
     private static final int PERMISSION_REQUEST_WRITE_EXTERNAL_STORAGE = 0;
-    @BindView(R.id.parent_relative_layout_view_gif_activity)
+    @BindView(R.id.hauler_view_view_gif_activity)
-    RelativeLayout mRelativeLayout;
+    HaulerView mHaulerView;
     @BindView(R.id.progress_bar_view_gif_activity)
     ProgressBar mProgressBar;
     @BindView(R.id.image_view_view_gif_activity)
@@ -81,14 +74,9 @@ public class ViewGIFActivity extends AppCompatActivity {
     SharedPreferences mSharedPreferences;
     private boolean isActionBarHidden = false;
     private boolean isDownloading = false;
-    private Menu mMenu;
-    private Swipe swipe;
     private RequestManager glide;
     private String mImageUrl;
     private String mImageFileName;
-    private float totalLengthY = 0.0f;
-    private float touchY = -1.0f;
-    private float zoom = 1.0f;
     private boolean isSwiping = false;
     private String postTitle;
 
@@ -117,6 +105,8 @@ public class ViewGIFActivity extends AppCompatActivity {
         actionBar.setHomeAsUpIndicator(upArrow);
         actionBar.setBackgroundDrawable(new ColorDrawable(getResources().getColor(R.color.transparentActionBarAndExoPlayerControllerColor)));
 
+        mHaulerView.setOnDragDismissedListener(dragDirection -> finish());
+
         glide = Glide.with(this);
 
         Intent intent = getIntent();
@@ -138,182 +128,8 @@ public class ViewGIFActivity extends AppCompatActivity {
             }
         });
 
-        float pxHeight = getResources().getDisplayMetrics().heightPixels;
-
-        int activityColorFrom = getResources().getColor(android.R.color.black);
-        int actionBarColorFrom = getResources().getColor(R.color.transparentActionBarAndExoPlayerControllerColor);
-        int actionBarElementColorFrom = getResources().getColor(android.R.color.white);
-        int colorTo = getResources().getColor(android.R.color.transparent);
-
-        final ValueAnimator activityColorAnimation = ValueAnimator.ofObject(new ArgbEvaluator(), activityColorFrom, colorTo);
-        final ValueAnimator actionBarColorAnimation = ValueAnimator.ofObject(new ArgbEvaluator(), actionBarColorFrom, colorTo);
-        final ValueAnimator actionBarElementColorAnimation = ValueAnimator.ofObject(new ArgbEvaluator(), actionBarElementColorFrom, colorTo);
-
-        activityColorAnimation.setDuration(300); // milliseconds
-        actionBarColorAnimation.setDuration(300);
-        actionBarElementColorAnimation.setDuration(300);
-
-        activityColorAnimation.addUpdateListener(valueAnimator -> mRelativeLayout.setBackgroundColor((int) valueAnimator.getAnimatedValue()));
-
-        actionBarColorAnimation.addUpdateListener(valueAnimator -> actionBar.setBackgroundDrawable(new ColorDrawable((int) valueAnimator.getAnimatedValue())));
-
-        actionBarElementColorAnimation.addUpdateListener(valueAnimator -> {
-            upArrow.setColorFilter((int) valueAnimator.getAnimatedValue(), PorterDuff.Mode.SRC_IN);
-            if (mMenu != null) {
-                Drawable drawable = mMenu.getItem(0).getIcon();
-                //drawable.mutate();
-                drawable.setColorFilter((int) valueAnimator.getAnimatedValue(), PorterDuff.Mode.SRC_IN);
-            }
-        });
-
         loadImage();
 
-        swipe = new Swipe();
-        swipe.setListener(new SimpleSwipeListener() {
-            @Override
-            public void onSwipingUp(final MotionEvent event) {
-                isSwiping = true;
-                float nowY = event.getY();
-                float offset;
-                if (touchY == -1.0f) {
-                    offset = 0.0f;
-                } else {
-                    offset = nowY - touchY;
-                }
-                totalLengthY += offset;
-                touchY = nowY;
-                mImageView.animate()
-                        .y(totalLengthY)
-                        .setDuration(0)
-                        .start();
-                mLoadErrorLinearLayout.animate()
-                        .y(totalLengthY)
-                        .setDuration(0)
-                        .start();
-            }
-
-            @Override
-            public boolean onSwipedUp(final MotionEvent event) {
-                if (totalLengthY < -pxHeight / 8) {
-                    mImageView.animate()
-                            .y(-pxHeight)
-                            .setDuration(300)
-                            .setListener(new Animator.AnimatorListener() {
-                                @Override
-                                public void onAnimationStart(Animator animator) {
-                                    activityColorAnimation.start();
-                                    actionBarColorAnimation.start();
-                                    actionBarElementColorAnimation.start();
-                                }
-
-                                @Override
-                                public void onAnimationEnd(Animator animator) {
-                                    finish();
-                                }
-
-                                @Override
-                                public void onAnimationCancel(Animator animator) {
-                                }
-
-                                @Override
-                                public void onAnimationRepeat(Animator animator) {
-                                }
-                            })
-                            .start();
-                    mLoadErrorLinearLayout.animate()
-                            .y(-pxHeight)
-                            .setDuration(300)
-                            .start();
-                } else {
-                    isSwiping = false;
-                    mImageView.animate()
-                            .y(0)
-                            .setDuration(300)
-                            .start();
-                    mLoadErrorLinearLayout.animate()
-                            .y(0)
-                            .setDuration(300)
-                            .start();
-                }
-
-                totalLengthY = 0.0f;
-                touchY = -1.0f;
-                return false;
-            }
-
-            @Override
-            public void onSwipingDown(final MotionEvent event) {
-                isSwiping = true;
-                float nowY = event.getY();
-                float offset;
-                if (touchY == -1.0f) {
-                    offset = 0.0f;
-                } else {
-                    offset = nowY - touchY;
-                }
-                totalLengthY += offset;
-                touchY = nowY;
-                mImageView.animate()
-                        .y(totalLengthY)
-                        .setDuration(0)
-                        .start();
-                mLoadErrorLinearLayout.animate()
-                        .y(totalLengthY)
-                        .setDuration(0)
-                        .start();
-            }
-
-            @Override
-            public boolean onSwipedDown(final MotionEvent event) {
-                if (totalLengthY > pxHeight / 8) {
-                    mImageView.animate()
-                            .y(pxHeight)
-                            .setDuration(300)
-                            .setListener(new Animator.AnimatorListener() {
-                                @Override
-                                public void onAnimationStart(Animator animator) {
-                                    activityColorAnimation.start();
-                                    actionBarColorAnimation.start();
-                                    actionBarElementColorAnimation.start();
-                                }
-
-                                @Override
-                                public void onAnimationEnd(Animator animator) {
-                                    finish();
-                                }
-
-                                @Override
-                                public void onAnimationCancel(Animator animator) {
-                                }
-
-                                @Override
-                                public void onAnimationRepeat(Animator animator) {
-                                }
-                            })
-                            .start();
-                    mLoadErrorLinearLayout.animate()
-                            .y(pxHeight)
-                            .setDuration(300)
-                            .start();
-                } else {
-                    isSwiping = false;
-                    mImageView.animate()
-                            .y(0)
-                            .setDuration(300)
-                            .start();
-                    mLoadErrorLinearLayout.animate()
-                            .y(0)
-                            .setDuration(300)
-                            .start();
-                }
-
-                totalLengthY = 0.0f;
-                touchY = -1.0f;
-
-                return false;
-            }
-        });
-
         mImageView.setOnClickListener(view -> {
             if (isActionBarHidden) {
                 getWindow().getDecorView().setSystemUiVisibility(
@@ -353,7 +169,6 @@ public class ViewGIFActivity extends AppCompatActivity {
 
     @Override
     public boolean onCreateOptionsMenu(Menu menu) {
-        mMenu = menu;
         getMenuInflater().inflate(R.menu.view_gif_activity, menu);
         return true;
     }
@@ -434,14 +249,6 @@ public class ViewGIFActivity extends AppCompatActivity {
         return false;
     }
 
-    @Override
-    public boolean dispatchTouchEvent(MotionEvent ev) {
-        if (zoom == 1.0) {
-            swipe.dispatchTouchEvent(ev);
-        }
-        return super.dispatchTouchEvent(ev);
-    }
-
     @Override
     public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
         if (requestCode == PERMISSION_REQUEST_WRITE_EXTERNAL_STORAGE && grantResults.length > 0) {
@@ -497,10 +304,4 @@ public class ViewGIFActivity extends AppCompatActivity {
         manager.enqueue(request);
         Toast.makeText(this, R.string.download_started, Toast.LENGTH_SHORT).show();
     }
-
-    @Override
-    protected void onPause() {
-        super.onPause();
-        overridePendingTransition(0, 0);
-    }
 }

app/src/main/java/ml/docilealligator/infinityforreddit/Activity/ViewImageActivity.java

@@ -1,16 +1,12 @@
 package ml.docilealligator.infinityforreddit.Activity;
 
 import android.Manifest;
-import android.animation.Animator;
-import android.animation.ArgbEvaluator;
-import android.animation.ValueAnimator;
 import android.app.DownloadManager;
 import android.content.Context;
 import android.content.Intent;
 import android.content.SharedPreferences;
 import android.content.pm.PackageManager;
 import android.graphics.Bitmap;
-import android.graphics.PorterDuff;
 import android.graphics.drawable.ColorDrawable;
 import android.graphics.drawable.Drawable;
 import android.net.Uri;
@@ -20,11 +16,9 @@ import android.os.Environment;
 import android.text.Html;
 import android.view.Menu;
 import android.view.MenuItem;
-import android.view.MotionEvent;
 import android.view.View;
 import android.widget.LinearLayout;
 import android.widget.ProgressBar;
-import android.widget.RelativeLayout;
 import android.widget.Toast;
 
 import androidx.annotation.NonNull;
@@ -35,8 +29,6 @@ import androidx.core.app.ActivityCompat;
 import androidx.core.content.ContextCompat;
 import androidx.core.content.FileProvider;
 
-import com.alexvasilkov.gestures.GestureController;
-import com.alexvasilkov.gestures.State;
 import com.alexvasilkov.gestures.views.GestureImageView;
 import com.bumptech.glide.Glide;
 import com.bumptech.glide.RequestManager;
@@ -46,8 +38,7 @@ import com.bumptech.glide.request.RequestListener;
 import com.bumptech.glide.request.target.CustomTarget;
 import com.bumptech.glide.request.target.Target;
 import com.bumptech.glide.request.transition.Transition;
-import com.github.pwittchen.swipe.library.rx2.SimpleSwipeListener;
+import com.thefuntasty.hauler.HaulerView;
-import com.github.pwittchen.swipe.library.rx2.Swipe;
 
 import java.io.File;
 
@@ -71,8 +62,8 @@ public class ViewImageActivity extends AppCompatActivity {
     public static final String FILE_NAME_KEY = "FNK";
     public static final String POST_TITLE_KEY = "PTK";
     private static final int PERMISSION_REQUEST_WRITE_EXTERNAL_STORAGE = 0;
-    @BindView(R.id.parent_relative_layout_view_image_activity)
+    @BindView(R.id.hauler_view_view_image_activity)
-    RelativeLayout mRelativeLayout;
+    HaulerView mHaulerView;
     @BindView(R.id.progress_bar_view_image_activity)
     ProgressBar mProgressBar;
     @BindView(R.id.image_view_view_image_activity)
@@ -84,15 +75,8 @@ public class ViewImageActivity extends AppCompatActivity {
     SharedPreferences mSharedPreferences;
     private boolean isActionBarHidden = false;
     private boolean isDownloading = false;
-    private Menu mMenu;
-    private Swipe swipe;
     private String mImageUrl;
     private String mImageFileName;
-    private float totalLengthY = 0.0f;
-    private float touchY = -1.0f;
-    private float initialZoom = 1.0f;
-    private float zoom = 1.0f;
-    private boolean isSwiping = false;
     private RequestManager glide;
     private String postTitle;
 
@@ -135,202 +119,16 @@ public class ViewImageActivity extends AppCompatActivity {
             setTitle("");
         }
 
+        mHaulerView.setOnDragDismissedListener(dragDirection -> finish());
+
         mLoadErrorLinearLayout.setOnClickListener(view -> {
-            if (!isSwiping) {
             mProgressBar.setVisibility(View.VISIBLE);
             mLoadErrorLinearLayout.setVisibility(View.GONE);
             loadImage();
-            }
-        });
-
-        float pxHeight = getResources().getDisplayMetrics().heightPixels;
-
-        int activityColorFrom = getResources().getColor(android.R.color.black);
-        int actionBarColorFrom = getResources().getColor(R.color.transparentActionBarAndExoPlayerControllerColor);
-        int actionBarElementColorFrom = getResources().getColor(android.R.color.white);
-        int colorTo = getResources().getColor(android.R.color.transparent);
-
-        final ValueAnimator activityColorAnimation = ValueAnimator.ofObject(new ArgbEvaluator(), activityColorFrom, colorTo);
-        final ValueAnimator actionBarColorAnimation = ValueAnimator.ofObject(new ArgbEvaluator(), actionBarColorFrom, colorTo);
-        final ValueAnimator actionBarElementColorAnimation = ValueAnimator.ofObject(new ArgbEvaluator(), actionBarElementColorFrom, colorTo);
-
-        activityColorAnimation.setDuration(300); // milliseconds
-        actionBarColorAnimation.setDuration(300);
-        actionBarElementColorAnimation.setDuration(300);
-
-        activityColorAnimation.addUpdateListener(valueAnimator -> mRelativeLayout.setBackgroundColor((int) valueAnimator.getAnimatedValue()));
-
-        actionBarColorAnimation.addUpdateListener(valueAnimator -> actionBar.setBackgroundDrawable(new ColorDrawable((int) valueAnimator.getAnimatedValue())));
-
-        actionBarElementColorAnimation.addUpdateListener(valueAnimator -> {
-            upArrow.setColorFilter((int) valueAnimator.getAnimatedValue(), PorterDuff.Mode.SRC_IN);
-            if (mMenu != null) {
-                Drawable drawable = mMenu.getItem(0).getIcon();
-                //drawable.mutate();
-                drawable.setColorFilter((int) valueAnimator.getAnimatedValue(), PorterDuff.Mode.SRC_IN);
-            }
         });
 
         loadImage();
 
-        swipe = new Swipe();
-        swipe.setListener(new SimpleSwipeListener() {
-            @Override
-            public void onSwipingUp(final MotionEvent event) {
-                isSwiping = true;
-                float nowY = event.getY();
-                float offset;
-                if (touchY == -1.0f) {
-                    offset = 0.0f;
-                } else {
-                    offset = nowY - touchY;
-                }
-                totalLengthY += offset;
-                touchY = nowY;
-                mImageView.animate()
-                        .y(totalLengthY)
-                        .setDuration(0)
-                        .start();
-                mLoadErrorLinearLayout.animate()
-                        .y(totalLengthY)
-                        .setDuration(0)
-                        .start();
-            }
-
-            @Override
-            public boolean onSwipedUp(final MotionEvent event) {
-                if (totalLengthY < -pxHeight / 8) {
-                    mImageView.animate()
-                            .y(-pxHeight)
-                            .setDuration(300)
-                            .setListener(new Animator.AnimatorListener() {
-                                @Override
-                                public void onAnimationStart(Animator animator) {
-                                    activityColorAnimation.start();
-                                    actionBarColorAnimation.start();
-                                    actionBarElementColorAnimation.start();
-                                }
-
-                                @Override
-                                public void onAnimationEnd(Animator animator) {
-                                    finish();
-                                }
-
-                                @Override
-                                public void onAnimationCancel(Animator animator) {
-                                }
-
-                                @Override
-                                public void onAnimationRepeat(Animator animator) {
-                                }
-                            })
-                            .start();
-                    mLoadErrorLinearLayout.animate()
-                            .y(-pxHeight)
-                            .setDuration(300)
-                            .start();
-                } else {
-                    isSwiping = false;
-                    mImageView.animate()
-                            .y(0)
-                            .setDuration(300)
-                            .start();
-                    mLoadErrorLinearLayout.animate()
-                            .y(0)
-                            .setDuration(300)
-                            .start();
-                }
-
-                totalLengthY = 0.0f;
-                touchY = -1.0f;
-                return false;
-            }
-
-            @Override
-            public void onSwipingDown(final MotionEvent event) {
-                isSwiping = true;
-                float nowY = event.getY();
-                float offset;
-                if (touchY == -1.0f) {
-                    offset = 0.0f;
-                } else {
-                    offset = nowY - touchY;
-                }
-                totalLengthY += offset;
-                touchY = nowY;
-                mImageView.animate()
-                        .y(totalLengthY)
-                        .setDuration(0)
-                        .start();
-                mLoadErrorLinearLayout.animate()
-                        .y(totalLengthY)
-                        .setDuration(0)
-                        .start();
-            }
-
-            @Override
-            public boolean onSwipedDown(final MotionEvent event) {
-                if (totalLengthY > pxHeight / 8) {
-                    mImageView.animate()
-                            .y(pxHeight)
-                            .setDuration(300)
-                            .setListener(new Animator.AnimatorListener() {
-                                @Override
-                                public void onAnimationStart(Animator animator) {
-                                    activityColorAnimation.start();
-                                    actionBarColorAnimation.start();
-                                    actionBarElementColorAnimation.start();
-                                }
-
-                                @Override
-                                public void onAnimationEnd(Animator animator) {
-                                    finish();
-                                }
-
-                                @Override
-                                public void onAnimationCancel(Animator animator) {
-                                }
-
-                                @Override
-                                public void onAnimationRepeat(Animator animator) {
-                                }
-                            })
-                            .start();
-                    mLoadErrorLinearLayout.animate()
-                            .y(pxHeight)
-                            .setDuration(300)
-                            .start();
-                } else {
-                    isSwiping = false;
-                    mImageView.animate()
-                            .y(0)
-                            .setDuration(300)
-                            .start();
-                    mLoadErrorLinearLayout.animate()
-                            .y(0)
-                            .setDuration(300)
-                            .start();
-                }
-
-                totalLengthY = 0.0f;
-                touchY = -1.0f;
-
-                return false;
-            }
-        });
-
-        mImageView.getController().addOnStateChangeListener(new GestureController.OnStateChangeListener() {
-            @Override
-            public void onStateChanged(State state) {
-                zoom = state.getZoom();
-            }
-
-            @Override
-            public void onStateReset(State oldState, State newState) {
-                initialZoom = newState.getZoom();
-            }
-        });
-
         mImageView.getController().getSettings().setMaxZoom(10f).setDoubleTapZoom(2f).setPanEnabled(true);
 
         mImageView.setOnClickListener(view -> {
@@ -372,7 +170,6 @@ public class ViewImageActivity extends AppCompatActivity {
 
     @Override
     public boolean onCreateOptionsMenu(Menu menu) {
-        mMenu = menu;
         getMenuInflater().inflate(R.menu.view_image_activity, menu);
         return true;
     }
@@ -453,14 +250,6 @@ public class ViewImageActivity extends AppCompatActivity {
         return false;
     }
 
-    @Override
-    public boolean dispatchTouchEvent(MotionEvent ev) {
-        if (Math.abs(zoom - initialZoom) <= 0.000001) {
-            swipe.dispatchTouchEvent(ev);
-        }
-        return super.dispatchTouchEvent(ev);
-    }
-
     @Override
     public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
         if (requestCode == PERMISSION_REQUEST_WRITE_EXTERNAL_STORAGE && grantResults.length > 0) {
@@ -516,10 +305,4 @@ public class ViewImageActivity extends AppCompatActivity {
         manager.enqueue(request);
         Toast.makeText(this, R.string.download_started, Toast.LENGTH_SHORT).show();
     }
-
-    @Override
-    protected void onPause() {
-        super.onPause();
-        overridePendingTransition(0, 0);
-    }
 }

app/src/main/java/ml/docilealligator/infinityforreddit/Activity/ViewImgurMediaActivity.java

@@ -19,6 +19,8 @@ import androidx.fragment.app.FragmentManager;
 import androidx.fragment.app.FragmentStatePagerAdapter;
 import androidx.viewpager.widget.ViewPager;
 
+import com.thefuntasty.hauler.HaulerView;
+
 import org.json.JSONArray;
 import org.json.JSONException;
 import org.json.JSONObject;
@@ -56,6 +58,8 @@ public class ViewImgurMediaActivity extends AppCompatActivity {
     public static final int IMGUR_TYPE_IMAGE = 2;
     private static final String IMGUR_IMAGES_STATE = "IIS";
 
+    @BindView(R.id.hauler_view_view_imgur_media_activity)
+    HaulerView haulerView;
     @BindView(R.id.progress_bar_view_imgur_media_activity)
     ProgressBar progressBar;
     @BindView(R.id.view_pager_view_imgur_media_activity)
@@ -109,6 +113,8 @@ public class ViewImgurMediaActivity extends AppCompatActivity {
             images = savedInstanceState.getParcelableArrayList(IMGUR_IMAGES_STATE);
         }
 
+        haulerView.setOnDragDismissedListener(dragDirection -> finish());
+
         if (images == null) {
             fetchImgurMedia(imgurId);
         } else {

app/src/main/java/ml/docilealligator/infinityforreddit/Activity/ViewVideoActivity.java

@@ -1,16 +1,12 @@
 package ml.docilealligator.infinityforreddit.Activity;
 
 import android.Manifest;
-import android.animation.Animator;
-import android.animation.ArgbEvaluator;
-import android.animation.ValueAnimator;
 import android.app.DownloadManager;
 import android.content.Context;
 import android.content.Intent;
 import android.content.SharedPreferences;
 import android.content.pm.PackageManager;
 import android.content.res.Configuration;
-import android.graphics.PorterDuff;
 import android.graphics.drawable.ColorDrawable;
 import android.graphics.drawable.Drawable;
 import android.media.AudioManager;
@@ -21,13 +17,11 @@ import android.os.Environment;
 import android.text.Html;
 import android.view.Menu;
 import android.view.MenuItem;
-import android.view.MotionEvent;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ImageButton;
 import android.widget.LinearLayout;
 import android.widget.ProgressBar;
-import android.widget.RelativeLayout;
 import android.widget.Toast;
 
 import androidx.annotation.NonNull;
@@ -36,8 +30,6 @@ import androidx.appcompat.app.AppCompatActivity;
 import androidx.core.app.ActivityCompat;
 import androidx.core.content.ContextCompat;
 
-import com.github.pwittchen.swipe.library.rx2.SimpleSwipeListener;
-import com.github.pwittchen.swipe.library.rx2.Swipe;
 import com.google.android.exoplayer2.ExoPlayerFactory;
 import com.google.android.exoplayer2.Player;
 import com.google.android.exoplayer2.SimpleExoPlayer;
@@ -55,6 +47,7 @@ import com.google.android.exoplayer2.upstream.DataSource;
 import com.google.android.exoplayer2.upstream.DefaultDataSourceFactory;
 import com.google.android.exoplayer2.upstream.DefaultHttpDataSourceFactory;
 import com.google.android.exoplayer2.util.Util;
+import com.thefuntasty.hauler.HaulerView;
 
 import java.io.File;
 
@@ -86,8 +79,8 @@ public class ViewVideoActivity extends AppCompatActivity {
     private static final String IS_MUTE_STATE = "IMS";
     private static final String VIDEO_DOWNLOAD_URL_STATE = "VDUS";
     private static final String VIDEO_URI_STATE = "VUS";
-    @BindView(R.id.relative_layout_view_video_activity)
+    @BindView(R.id.hauler_view_view_video_activity)
-    RelativeLayout relativeLayout;
+    HaulerView haulerView;
     @BindView(R.id.progress_bar_view_video_activity)
     ProgressBar progressBar;
     @BindView(R.id.player_view_view_video_activity)
@@ -99,16 +92,11 @@ public class ViewVideoActivity extends AppCompatActivity {
     private SimpleExoPlayer player;
     private DataSource.Factory dataSourceFactory;
 
-    private Menu mMenu;
-    private Swipe swipe;
-
     private String videoDownloadUrl;
     private String videoFileName;
     private boolean wasPlaying;
     private boolean isDownloading = false;
     private boolean isMute = false;
-    private float totalLengthY = 0.0f;
-    private float touchY = -1.0f;
     private String postTitle;
     private long resumePosition = -1;
 
@@ -155,6 +143,8 @@ public class ViewVideoActivity extends AppCompatActivity {
             params.rightMargin = getResources().getDimensionPixelSize(resourceId);
         }
 
+        haulerView.setOnDragDismissedListener(dragDirection -> finish());
+
         Intent intent = getIntent();
         mVideoUri = intent.getData();
         postTitle = intent.getStringExtra(EXTRA_POST_TITLE);
@@ -168,156 +158,6 @@ public class ViewVideoActivity extends AppCompatActivity {
             setTitle("");
         }
 
-        final float pxHeight = getResources().getDisplayMetrics().heightPixels;
-
-        int activityColorFrom = getResources().getColor(android.R.color.black);
-        int actionBarColorFrom = getResources().getColor(R.color.transparentActionBarAndExoPlayerControllerColor);
-        int actionBarElementColorFrom = getResources().getColor(android.R.color.white);
-        int colorTo = getResources().getColor(android.R.color.transparent);
-
-        final ValueAnimator activityColorAnimation = ValueAnimator.ofObject(new ArgbEvaluator(), activityColorFrom, colorTo);
-        final ValueAnimator actionBarColorAnimation = ValueAnimator.ofObject(new ArgbEvaluator(), actionBarColorFrom, colorTo);
-        final ValueAnimator actionBarElementColorAnimation = ValueAnimator.ofObject(new ArgbEvaluator(), actionBarElementColorFrom, colorTo);
-
-        activityColorAnimation.setDuration(300); // milliseconds
-        actionBarColorAnimation.setDuration(300);
-        actionBarElementColorAnimation.setDuration(300);
-
-        activityColorAnimation.addUpdateListener(valueAnimator -> relativeLayout.setBackgroundColor((int) valueAnimator.getAnimatedValue()));
-
-        actionBarColorAnimation.addUpdateListener(valueAnimator -> actionBar.setBackgroundDrawable(new ColorDrawable((int) valueAnimator.getAnimatedValue())));
-
-        actionBarElementColorAnimation.addUpdateListener(valueAnimator -> {
-            upArrow.setColorFilter((int) valueAnimator.getAnimatedValue(), PorterDuff.Mode.SRC_IN);
-            if (mMenu != null) {
-                Drawable drawable = mMenu.getItem(0).getIcon();
-                drawable.setColorFilter((int) valueAnimator.getAnimatedValue(), PorterDuff.Mode.SRC_IN);
-            }
-        });
-
-        swipe = new Swipe();
-        swipe.setListener(new SimpleSwipeListener() {
-            @Override
-            public void onSwipingUp(final MotionEvent event) {
-                float nowY = event.getY();
-                float offset;
-                if (touchY == -1.0f) {
-                    offset = 0.0f;
-                } else {
-                    offset = nowY - touchY;
-                }
-                totalLengthY += offset;
-                touchY = nowY;
-                videoPlayerView.animate()
-                        .y(totalLengthY)
-                        .setDuration(0)
-                        .start();
-            }
-
-            @Override
-            public boolean onSwipedUp(final MotionEvent event) {
-                videoPlayerView.animate()
-                        .y(0)
-                        .setDuration(300)
-                        .start();
-
-                if (totalLengthY < -pxHeight / 8) {
-                    videoPlayerView.animate()
-                            .y(-pxHeight)
-                            .setDuration(300)
-                            .setListener(new Animator.AnimatorListener() {
-                                @Override
-                                public void onAnimationStart(Animator animator) {
-                                    activityColorAnimation.start();
-                                    actionBarColorAnimation.start();
-                                    actionBarElementColorAnimation.start();
-                                }
-
-                                @Override
-                                public void onAnimationEnd(Animator animator) {
-                                    finish();
-                                }
-
-                                @Override
-                                public void onAnimationCancel(Animator animator) {
-                                }
-
-                                @Override
-                                public void onAnimationRepeat(Animator animator) {
-                                }
-                            })
-                            .start();
-                } else {
-                    videoPlayerView.animate()
-                            .y(0)
-                            .setDuration(300)
-                            .start();
-                }
-
-                totalLengthY = 0.0f;
-                touchY = -1.0f;
-                return false;
-            }
-
-            @Override
-            public void onSwipingDown(final MotionEvent event) {
-                float nowY = event.getY();
-                float offset;
-                if (touchY == -1.0f) {
-                    offset = 0.0f;
-                } else {
-                    offset = nowY - touchY;
-                }
-                totalLengthY += offset;
-                touchY = nowY;
-                videoPlayerView.animate()
-                        .y(totalLengthY)
-                        .setDuration(0)
-                        .start();
-            }
-
-            @Override
-            public boolean onSwipedDown(final MotionEvent event) {
-                if (totalLengthY > pxHeight / 8) {
-                    videoPlayerView.animate()
-                            .y(pxHeight)
-                            .setDuration(300)
-                            .setListener(new Animator.AnimatorListener() {
-                                @Override
-                                public void onAnimationStart(Animator animator) {
-                                    activityColorAnimation.start();
-                                    actionBarColorAnimation.start();
-                                    actionBarElementColorAnimation.start();
-                                }
-
-                                @Override
-                                public void onAnimationEnd(Animator animator) {
-                                    finish();
-                                }
-
-                                @Override
-                                public void onAnimationCancel(Animator animator) {
-                                }
-
-                                @Override
-                                public void onAnimationRepeat(Animator animator) {
-                                }
-                            })
-                            .start();
-                } else {
-                    videoPlayerView.animate()
-                            .y(0)
-                            .setDuration(300)
-                            .start();
-                }
-
-                totalLengthY = 0.0f;
-                touchY = -1.0f;
-
-                return false;
-            }
-        });
-
         videoPlayerView.setControllerVisibilityListener(visibility -> {
             switch (visibility) {
                 case View.GONE:
@@ -394,8 +234,6 @@ public class ViewVideoActivity extends AppCompatActivity {
                 player.prepare(new DashMediaSource.Factory(dataSourceFactory).createMediaSource(mVideoUri));
                 preparePlayer(savedInstanceState);
             }
-        } if (videoType == VIDEO_TYPE_REDGIFS) {
-
         } else if (videoType == VIDEO_TYPE_DIRECT) {
             videoDownloadUrl = mVideoUri.toString();
             videoFileName = videoDownloadUrl.substring(videoDownloadUrl.lastIndexOf('/') + 1);
@@ -474,16 +312,9 @@ public class ViewVideoActivity extends AppCompatActivity {
     @Override
     public boolean onCreateOptionsMenu(Menu menu) {
         getMenuInflater().inflate(R.menu.view_video, menu);
-        mMenu = menu;
         return true;
     }
 
-    @Override
-    public boolean dispatchTouchEvent(MotionEvent ev) {
-        swipe.dispatchTouchEvent(ev);
-        return super.dispatchTouchEvent(ev);
-    }
-
     @Override
     protected void onDestroy() {
         super.onDestroy();
@@ -599,12 +430,6 @@ public class ViewVideoActivity extends AppCompatActivity {
         Toast.makeText(this, R.string.download_started, Toast.LENGTH_SHORT).show();
     }
 
-    @Override
-    protected void onPause() {
-        super.onPause();
-        overridePendingTransition(0, 0);
-    }
-
     @Override
     protected void onSaveInstanceState(@NonNull Bundle outState) {
         super.onSaveInstanceState(outState);

app/src/main/java/ml/docilealligator/infinityforreddit/Adapter/PostRecyclerViewAdapter.java

@@ -2122,7 +2122,6 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
                         mActivity.startActivity(intent);
                     } else if (post.getPostType() == Post.GIF_TYPE) {
                         Intent intent = new Intent(mActivity, ViewGIFActivity.class);
-                        intent.setData(Uri.parse(post.getVideoUrl()));
                         intent.putExtra(ViewGIFActivity.FILE_NAME_KEY, post.getSubredditName()
                                 + "-" + post.getId() + ".gif");
                         intent.putExtra(ViewGIFActivity.GIF_URL_KEY, post.getVideoUrl());
@@ -2220,12 +2219,21 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
             imageView.setOnClickListener(view -> {
                 Post post = getItem(getAdapterPosition());
                 if (post != null) {
+                    if (post.getPostType() == Post.IMAGE_TYPE) {
                         Intent intent = new Intent(mActivity, ViewImageActivity.class);
                         intent.putExtra(ViewImageActivity.IMAGE_URL_KEY, post.getUrl());
                         intent.putExtra(ViewImageActivity.FILE_NAME_KEY, post.getSubredditName()
                                 + "-" + post.getId() + ".jpg");
                         intent.putExtra(ViewImageActivity.POST_TITLE_KEY, post.getTitle());
                         mActivity.startActivity(intent);
+                    } else if (post.getPostType() == Post.GIF_TYPE) {
+                        Intent intent = new Intent(mActivity, ViewGIFActivity.class);
+                        intent.putExtra(ViewGIFActivity.FILE_NAME_KEY, post.getSubredditName()
+                                + "-" + post.getId() + ".gif");
+                        intent.putExtra(ViewGIFActivity.GIF_URL_KEY, post.getVideoUrl());
+                        intent.putExtra(ViewGIFActivity.POST_TITLE_KEY, post.getTitle());
+                        mActivity.startActivity(intent);
+                    }
                 }
             });
         }

app/src/main/java/ml/docilealligator/infinityforreddit/Fragment/ViewImgurImageFragment.java

@@ -63,7 +63,6 @@ public class ViewImgurImageFragment extends Fragment {
     private Activity activity;
     private RequestManager glide;
     private ImgurMedia imgurMedia;
-    private boolean isActionBarHidden = false;
     private boolean isDownloading = false;
 
     public ViewImgurImageFragment() {

app/src/main/res/layout/activity_view_gif.xml

@@ -1,14 +1,24 @@
 <?xml version="1.0" encoding="utf-8"?>
-<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<com.thefuntasty.hauler.HaulerView
+    xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/hauler_view_view_gif_activity"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    android:id="@+id/parent_relative_layout_view_gif_activity"
-    android:background="#000000"
     android:keepScreenOn="true"
+    app:dragUpEnabled="true"
     tools:application="ml.docilealligator.infinityforreddit.Activity.ViewGIFActivity">
 
+    <androidx.core.widget.NestedScrollView
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:fillViewport="true">
+
+        <RelativeLayout
+            android:layout_width="match_parent"
+            android:layout_height="match_parent">
+
             <ProgressBar
                 android:id="@+id/progress_bar_view_gif_activity"
                 android:layout_width="wrap_content"
@@ -39,4 +49,8 @@
 
             </LinearLayout>
 
-</RelativeLayout>
+        </RelativeLayout>
+
+    </androidx.core.widget.NestedScrollView>
+
+</com.thefuntasty.hauler.HaulerView>

app/src/main/res/layout/activity_view_image.xml

@@ -1,13 +1,23 @@
 <?xml version="1.0" encoding="utf-8"?>
-<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<com.thefuntasty.hauler.HaulerView
+    xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/hauler_view_view_image_activity"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    android:id="@+id/parent_relative_layout_view_image_activity"
+    app:dragUpEnabled="true"
-    android:background="@android:color/black"
     tools:application="ml.docilealligator.infinityforreddit.Activity.ViewImageActivity">
 
+    <androidx.core.widget.NestedScrollView
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:fillViewport="true">
+
+        <RelativeLayout
+            android:layout_width="match_parent"
+            android:layout_height="match_parent">
+
             <ProgressBar
                 android:id="@+id/progress_bar_view_image_activity"
                 android:layout_width="wrap_content"
@@ -38,4 +48,8 @@
 
             </LinearLayout>
 
-</RelativeLayout>
+        </RelativeLayout>
+
+    </androidx.core.widget.NestedScrollView>
+
+</com.thefuntasty.hauler.HaulerView>

app/src/main/res/layout/activity_view_imgur_media.xml

@@ -1,6 +1,19 @@
 <?xml version="1.0" encoding="utf-8"?>
-<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<com.thefuntasty.hauler.HaulerView xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/hauler_view_view_imgur_media_activity"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    app:dragUpEnabled="true"
+    tools:context=".Activity.ViewImgurMediaActivity">
+
+    <androidx.core.widget.NestedScrollView
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:fillViewport="true">
+
+        <RelativeLayout
             android:layout_width="match_parent"
             android:layout_height="match_parent">
 
@@ -13,8 +26,7 @@
             <androidx.viewpager.widget.ViewPager
                 android:layout_width="match_parent"
                 android:layout_height="match_parent"
-        android:id="@+id/view_pager_view_imgur_media_activity"
+                android:id="@+id/view_pager_view_imgur_media_activity" />
-        tools:context=".Activity.ViewImgurMediaActivity" />
 
             <LinearLayout
                 android:id="@+id/load_image_error_linear_layout_view_imgur_media_activity"
@@ -34,4 +46,8 @@
 
             </LinearLayout>
 
-</RelativeLayout>
+        </RelativeLayout>
+
+    </androidx.core.widget.NestedScrollView>
+
+</com.thefuntasty.hauler.HaulerView>

app/src/main/res/layout/activity_view_video.xml

@@ -1,14 +1,24 @@
 <?xml version="1.0" encoding="utf-8"?>
-<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<com.thefuntasty.hauler.HaulerView
+    xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/hauler_view_view_video_activity"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    android:background="#000000"
-    android:id="@+id/relative_layout_view_video_activity"
     android:keepScreenOn="true"
+    app:dragUpEnabled="true"
     tools:application="ml.docilealligator.infinityforreddit.Activity.ViewVideoActivity">
 
+    <androidx.core.widget.NestedScrollView
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:fillViewport="true">
+
+        <RelativeLayout
+            android:layout_width="match_parent"
+            android:layout_height="match_parent">
+
             <com.google.android.exoplayer2.ui.PlayerView
                 android:id="@+id/player_view_view_video_activity"
                 android:layout_width="match_parent"
@@ -22,4 +32,8 @@
                 android:layout_centerInParent="true"
                 android:visibility="gone" />
 
-</RelativeLayout>
+        </RelativeLayout>
+
+    </androidx.core.widget.NestedScrollView>
+
+</com.thefuntasty.hauler.HaulerView>

app/src/main/res/values/styles.xml

@@ -32,10 +32,13 @@
         <item name="android:windowBackground">@android:color/transparent</item>
     </style>
 
-    <style name="AppTheme.ActionBar.Transparent" parent="AppTheme">
+    <style name="AppTheme.Draggable" parent="AppTheme">
-        <item name="android:windowBackground">@android:color/black</item>
+        <item name="android:colorBackgroundCacheHint">@null</item>
+        <item name="android:windowContentOverlay">@null</item>
+        <item name="android:windowIsFloating">false</item>
+        <item name="android:windowIsTranslucent">true</item>
         <item name="android:windowTranslucentStatus">true</item>
-        <item name="android:windowTranslucentNavigation">true</item>
+        <item name="android:windowBackground">@android:color/black</item>
     </style>
 
     <style name="AppTheme.AppBarOverlay" parent="ThemeOverlay.AppCompat.DayNight.ActionBar" />