Implement barebone swipe to upvote or downvote.

This commit is contained in:
Alex Ning 2020-09-03 09:34:32 +08:00
parent 7911f4f381
commit 98b324f190
2 changed files with 98 additions and 0 deletions

View File

@ -10,6 +10,7 @@ import android.graphics.PorterDuff;
import android.graphics.drawable.Drawable;
import android.net.Uri;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
@ -30,6 +31,7 @@ import androidx.constraintlayout.widget.ConstraintSet;
import androidx.core.graphics.drawable.DrawableCompat;
import androidx.paging.PagedListAdapter;
import androidx.recyclerview.widget.DiffUtil;
import androidx.recyclerview.widget.ItemTouchHelper;
import androidx.recyclerview.widget.RecyclerView;
import com.bumptech.glide.Glide;
@ -509,10 +511,12 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
switch (post.getVoteType()) {
case 1:
//Upvoted
Log.i("asdasdf", "upvoted");
((PostBaseViewHolder) holder).upvoteButton.setColorFilter(mUpvotedColor, android.graphics.PorterDuff.Mode.SRC_IN);
((PostBaseViewHolder) holder).scoreTextView.setTextColor(mUpvotedColor);
break;
case -1:
Log.i("asdasdf", "downvoted");
//Downvoted
((PostBaseViewHolder) holder).downvoteButton.setColorFilter(mDownvotedColor, android.graphics.PorterDuff.Mode.SRC_IN);
((PostBaseViewHolder) holder).scoreTextView.setTextColor(mDownvotedColor);
@ -1240,6 +1244,19 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
return null;
}
public void onItemSwipe(RecyclerView.ViewHolder viewHolder, int direction) {
if (viewHolder instanceof PostBaseViewHolder) {
Post post = getItem(viewHolder.getAdapterPosition());
if (post != null) {
if (direction == ItemTouchHelper.LEFT || direction == ItemTouchHelper.START) {
((PostBaseViewHolder) viewHolder).upvoteButton.performClick();
} else {
((PostBaseViewHolder) viewHolder).downvoteButton.performClick();
}
}
}
}
public interface Callback {
void retryLoadingMore();
@ -1510,12 +1527,14 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
if (previousVoteType != 1) {
//Not upvoted before
Log.i("asdasdf", "not 1 before");
post.setVoteType(1);
newVoteType = APIUtils.DIR_UPVOTE;
upvoteButton
.setColorFilter(mUpvotedColor, android.graphics.PorterDuff.Mode.SRC_IN);
scoreTextView.setTextColor(mUpvotedColor);
} else {
Log.i("asdasdf", "1 before");
//Upvoted before
post.setVoteType(0);
newVoteType = APIUtils.DIR_UNVOTE;
@ -1529,11 +1548,13 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
@Override
public void onVoteThingSuccess(int position1) {
if (newVoteType.equals(APIUtils.DIR_UPVOTE)) {
Log.i("asdasdf", "1");
post.setVoteType(1);
upvoteButton
.setColorFilter(mUpvotedColor, android.graphics.PorterDuff.Mode.SRC_IN);
scoreTextView.setTextColor(mUpvotedColor);
} else {
Log.i("asdasdf", "0");
post.setVoteType(0);
upvoteButton.setColorFilter(mPostIconAndInfoColor, android.graphics.PorterDuff.Mode.SRC_IN);
scoreTextView.setTextColor(mPostIconAndInfoColor);

View File

@ -6,7 +6,10 @@ import android.content.Intent;
import android.content.SharedPreferences;
import android.content.res.Configuration;
import android.content.res.Resources;
import android.graphics.Canvas;
import android.graphics.Rect;
import android.graphics.drawable.ColorDrawable;
import android.graphics.drawable.Drawable;
import android.os.Build;
import android.os.Bundle;
import android.os.CountDownTimer;
@ -27,9 +30,11 @@ import androidx.annotation.DimenRes;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import androidx.coordinatorlayout.widget.CoordinatorLayout;
import androidx.core.content.res.ResourcesCompat;
import androidx.fragment.app.Fragment;
import androidx.lifecycle.ViewModelProvider;
import androidx.paging.PagedList;
import androidx.recyclerview.widget.ItemTouchHelper;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.LinearSmoothScroller;
import androidx.recyclerview.widget.RecyclerView;
@ -172,6 +177,12 @@ public class PostFragment extends Fragment implements FragmentCommunicator {
private int maxPosition = -1;
private int postLayout;
private SortType sortType;
private ColorDrawable backgroundLeft;
private ColorDrawable backgroundRight;
private Drawable drawableLeft;
private Drawable drawableRight;
private float swipeActionThreshold = 0.3f;
private ItemTouchHelper touchHelper;
public PostFragment() {
// Required empty public constructor
@ -610,6 +621,72 @@ public class PostFragment extends Fragment implements FragmentCommunicator {
((ActivityToolbarInterface) activity).displaySortType();
}
backgroundLeft = new ColorDrawable(customThemeWrapper.getDownvoted());
backgroundRight = new ColorDrawable(customThemeWrapper.getUpvoted());
drawableLeft = ResourcesCompat.getDrawable(activity.getResources(), R.drawable.ic_arrow_downward_black_24dp, null);
drawableRight = ResourcesCompat.getDrawable(activity.getResources(), R.drawable.ic_arrow_upward_black_24dp, null);
touchHelper = new ItemTouchHelper(new ItemTouchHelper.Callback() {
@Override
public int getMovementFlags(@NonNull RecyclerView recyclerView, @NonNull RecyclerView.ViewHolder viewHolder) {
int swipeFlags = ItemTouchHelper.START | ItemTouchHelper.END;
return makeMovementFlags(0, swipeFlags);
}
@Override
public boolean onMove(@NonNull RecyclerView recyclerView, @NonNull RecyclerView.ViewHolder viewHolder, @NonNull RecyclerView.ViewHolder target) {
return false;
}
@Override
public boolean isItemViewSwipeEnabled() {
return true;
}
@Override
public void onSwiped(@NonNull RecyclerView.ViewHolder viewHolder, int direction) {
if (touchHelper != null) {
touchHelper.attachToRecyclerView(null);
touchHelper.attachToRecyclerView(mPostRecyclerView);
if (mAdapter != null) {
mAdapter.onItemSwipe(viewHolder, direction);
}
}
}
@Override
public void onChildDraw(@NonNull Canvas c, @NonNull RecyclerView recyclerView, @NonNull RecyclerView.ViewHolder viewHolder, float dX, float dY, int actionState, boolean isCurrentlyActive) {
super.onChildDraw(c, recyclerView, viewHolder, dX, dY, actionState, isCurrentlyActive);
View itemView = viewHolder.itemView;
int horizontalOffset = (int) Utils.convertDpToPixel(16, activity);
if (dX > 0) {
if (dX > (itemView.getRight() - itemView.getLeft()) * 0.3) {
backgroundLeft.setBounds(0, itemView.getTop(), itemView.getRight(), itemView.getBottom());
} else {
backgroundLeft.setBounds(0, 0, 0, 0);
}
drawableLeft.setBounds(itemView.getLeft() + ((int) dX) - horizontalOffset - drawableLeft.getIntrinsicWidth(), (itemView.getBottom() - itemView.getTop() - drawableLeft.getIntrinsicHeight()) / 2, itemView.getLeft() + ((int) dX) - horizontalOffset, (itemView.getBottom() - itemView.getTop() + drawableLeft.getIntrinsicHeight()) / 2);
backgroundLeft.draw(c);
drawableLeft.draw(c);
} else if (dX < 0) {
if (-dX > (itemView.getRight() - itemView.getLeft()) * 0.3) {
backgroundRight.setBounds(0, itemView.getTop(), itemView.getRight(), itemView.getBottom());
} else {
backgroundRight.setBounds(0, 0, 0, 0);
}
drawableRight.setBounds(itemView.getRight() + ((int) dX) + horizontalOffset, (itemView.getBottom() - itemView.getTop() - drawableRight.getIntrinsicHeight()) / 2, itemView.getRight() + ((int) dX) + horizontalOffset + drawableRight.getIntrinsicWidth(), (itemView.getBottom() - itemView.getTop() + drawableRight.getIntrinsicHeight()) / 2);
backgroundRight.draw(c);
drawableRight.draw(c);
}
}
@Override
public float getSwipeThreshold(@NonNull RecyclerView.ViewHolder viewHolder) {
return swipeActionThreshold;
}
});
touchHelper.attachToRecyclerView(mPostRecyclerView);
mPostRecyclerView.setAdapter(mAdapter);
mPostRecyclerView.setCacheManager(mAdapter);
mPostRecyclerView.setPlayerInitializer(order -> {