如何在Android studio中使用firebase使帖子部分加载并缓存帖子?
我用FirebaseRecyciclerView制作了一个新闻提要,但问题是它们一次加载所有内容,而且滚动速度非常慢和滞后。我想添加部分加载和缓存。像Facebook、Twitter、Instagram等,我尝试过截击,但我想不出来。有谁能告诉我什么是解决我问题的最好方法吗 我试过这个答案,但没有结果如何在Android studio中使用firebase使帖子部分加载并缓存帖子?,android,firebase,firebase-realtime-database,firebaseui,Android,Firebase,Firebase Realtime Database,Firebaseui,我用FirebaseRecyciclerView制作了一个新闻提要,但问题是它们一次加载所有内容,而且滚动速度非常慢和滞后。我想添加部分加载和缓存。像Facebook、Twitter、Instagram等,我尝试过截击,但我想不出来。有谁能告诉我什么是解决我问题的最好方法吗 我试过这个答案,但没有结果 private void DisplayAllUsersPosts() { 查询SortPostsInDescendingOrder=PostsRef.orderByChild(“计数器”);
private void DisplayAllUsersPosts()
{
查询SortPostsInDescendingOrder=PostsRef.orderByChild(“计数器”);
FirebaseRecyclerAdapter FirebaseRecyclerAdapter=
新型FirebaseRecyclerAdapter
(
Posts.class,
R.布局。所有_柱_布局,
PostsViewHolder.class,
排序桩下降顺序
)
{
@凌驾
受保护的void populateViewHolder(PostsViewHolder视图持有人、Posts模型、int位置)
{
最后一个字符串PostKey=getRef(position).getKey();
setFullname(model.getFullname());
setTime(model.getTime());
setDate(model.getDate());
viewHolder.setDescription(model.getDescription());
viewHolder.setUser\u thumb\u image(getApplicationContext(),model.getUser\u thumb\u image());
setPostimage(getApplicationContext(),model.getPostimage());
viewHolder.setLikeButtonStatus(PostKey);
viewHolder.mView.setOnClickListener(新视图.OnClickListener(){
@凌驾
公共void onClick(视图){
意向ClickPostContent=新意向(MainActivity.this,ClickPostActivity.class);
单击PostContent.putExtra(“PostKey”,PostKey);
开始触觉(点击内容);
}
});
viewHolder.CommentPostButton.setOnClickListener(新视图.OnClickListener(){
@凌驾
公共void onClick(视图){
Intent commentsinent=新意图(MainActivity.this、CommentsActivity.class);
commentsinent.putExtra(“PostKey”,PostKey);
起始触觉(注释);
}
});
viewHolder.LikePostButton.setOnClickListener(新视图.OnClickListener(){
@凌驾
公共void onClick(视图){
LikeChecker=true;
像ref.addValueEventListener(新的ValueEventListener(){
@凌驾
公共void onDataChange(DataSnapshot DataSnapshot){
如果(LikeChecker.equals(true)){
if(dataSnapshot.child(PostKey).hasChild(currentUserID)){
比如ref.child(PostKey).child(currentUserID).removeValue();
LikeChecker=false;
}否则{
LikesRef.child(PostKey).child(currentUserID).setValue(true);
LikeChecker=false;
}
}
}
@凌驾
已取消的公共void(DatabaseError DatabaseError){
}
});
}
});
}
};
setAdapter(firebaseRecyclerAdapter);
}
尝试实现分页。请参阅是否有更简单的方法来实现分页,而无需进行太多更改?
private void DisplayAllUsersPosts()
{
Query SortPostsInDescendingOrder = PostsRef.orderByChild("counter");
FirebaseRecyclerAdapter<Posts, PostsViewHolder> firebaseRecyclerAdapter =
new FirebaseRecyclerAdapter<Posts, PostsViewHolder>
(
Posts.class,
R.layout.all_posts_layout,
PostsViewHolder.class,
SortPostsInDescendingOrder
)
{
@Override
protected void populateViewHolder(PostsViewHolder viewHolder, Posts model, int position)
{
final String PostKey = getRef(position).getKey();
viewHolder.setFullname(model.getFullname());
viewHolder.setTime(model.getTime());
viewHolder.setDate(model.getDate());
viewHolder.setDescription(model.getDescription());
viewHolder.setUser_thumb_image(getApplicationContext(), model.getUser_thumb_image());
viewHolder.setPostimage(getApplicationContext(), model.getPostimage());
viewHolder.setLikeButtonStatus(PostKey);
viewHolder.mView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent clickPostIntent = new Intent(MainActivity.this, ClickPostActivity.class);
clickPostIntent.putExtra("PostKey", PostKey);
startActivity(clickPostIntent);
}
});
viewHolder.CommentPostButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent commentsIntent = new Intent(MainActivity.this, CommentsActivity.class);
commentsIntent.putExtra("PostKey", PostKey);
startActivity(commentsIntent);
}
});
viewHolder.LikePostButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
LikeChecker = true;
LikesRef.addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(DataSnapshot dataSnapshot) {
if(LikeChecker.equals(true)){
if(dataSnapshot.child(PostKey).hasChild(currentUserID)){
LikesRef.child(PostKey).child(currentUserID).removeValue();
LikeChecker = false;
}else{
LikesRef.child(PostKey).child(currentUserID).setValue(true);
LikeChecker = false;
}
}
}
@Override
public void onCancelled(DatabaseError databaseError) {
}
});
}
});
}
};
postList.setAdapter(firebaseRecyclerAdapter);
}