android-RecyclerView在错误的位置设置图像
作者：互联网
我有一个回收站视图,有2种适配器,并且有一个默认的Image.问题在于,当用户没有图像时,有时会加载其他用户图像而不是默认图像.
(我还会检查用户是否没有图像链接,它会以编程方式重置默认图像…,所以它应该可以工作=>文本等没有问题,只有图像！)
这是一个适配器的xml代码(对于另一个适配器几乎相同)：
<RelativeLayout xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/rella_rc_item_friend"
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:card_view="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="5dp"
android:layout_marginTop="8dp"
card_view:cardBackgroundColor="@color/colorCardView"
card_view:cardCornerRadius="5dp">
<android.support.v7.widget.CardView
android:layout_width="match_parent"
android:layout_height="70dp"
android:layout_marginBottom="10dp"
android:layout_marginStart="15dp"
android:layout_marginEnd="15dp"
card_view:cardBackgroundColor="@color/grey_200"
card_view:cardCornerRadius="5dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal"
android:gravity="center">
<de.hdodenhof.circleimageview.CircleImageView
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/icon_avata"
android:layout_width="0dp"
android:layout_height="50dp"
android:layout_margin="10dp"
android:src="@drawable/default_avata"
android:layout_weight="1"
app:civ_border_color="@color/colorPrimary"/>
<LinearLayout
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_marginStart="10dp"
android:layout_weight="5"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_gravity=""
android:layout_weight="1"
android:orientation="horizontal"
android:paddingTop="5dp">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="@+id/txtName"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center_vertical"
android:layout_toLeftOf="@id/txtTime"
android:textAppearance="?android:attr/textAppearanceMedium" />
<TextView
android:id="@+id/txtTime"
android:layout_width="wrap_content"
android:layout_alignParentRight="true"
android:layout_height="match_parent"
android:gravity="center_vertical|right"
android:textAppearance="?android:attr/textAppearanceSmall" />
</RelativeLayout>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_gravity=""
android:layout_weight="1">
<TextView
android:id="@+id/txtMessage"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:ellipsize="end"
android:gravity="center_vertical"
android:lines="1"
android:paddingBottom="10dp"
/>
</LinearLayout>
</LinearLayout>
</LinearLayout>
</android.support.v7.widget.CardView>
class ListContactAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
public List<MessageInfo> ListContacts;
private Context context;
FirebaseAuth mAuth;
String currentuserid;
SimpleDateFormat DateFormat = new SimpleDateFormat("dd MMMM, yyyy");
SimpleDateFormat TimeFormat = new SimpleDateFormat("hh:mm a");
SimpleDateFormat YearFormat = new SimpleDateFormat("yyyy");
SimpleDateFormat DayFormat = new SimpleDateFormat("MMMM dd, hh:mm a");
FusionProject Fobj = new FusionProject();
DatabaseReference VuRef;
CommunActivit obj = new CommunActivit();
public ListContactAdapter(Context context,List<MessageInfo> listGroup){
this.context = context;
this.ListContacts = listGroup;
mAuth = FirebaseAuth.getInstance();
currentuserid = mAuth.getUid();
VuRef = FirebaseDatabase.getInstance().getReference().child("Seen");
}
public ListContactAdapter ()
{
}
@Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
if (viewType == 1) {
View view = LayoutInflater.from(context).inflate(R.layout.rc_item_contact_me, parent, false);
return new ItemForMe(view);
} else if (viewType == 2) {
View view = LayoutInflater.from(context).inflate(R.layout.rc_item_friend, parent, false);
return new ItemForMyFriend(view);
}
return null;
}
@Override
public void onBindViewHolder(final RecyclerView.ViewHolder holder, final int position)
{
String username = ListContacts.get(position).getFriendUsername();
String last_message = ListContacts.get(position).getLastMessage();
String time = ListContacts.get(position).getTime() ;
String image = ListContacts.get(position).getFriendPicture();
String FriendID = ListContacts.get(position).getFriendID();
Date Today = new Date(System.currentTimeMillis());
long yourmilliseconds = (Long.parseLong(time));
Date resultdate = new Date(yourmilliseconds);
String test = DateFormat.format(resultdate).toString(); /**DATE**/
String test2 = TimeFormat.format(resultdate).toString(); /**TIME**/
String test3 = YearFormat.format(resultdate);
String test4 = DayFormat.format(resultdate);
if (holder instanceof ItemForMe)
{
((ItemForMe) holder).username_friend.setText(username);
((ItemForMe) holder).last_message.setText("Me : " +last_message);
if (DateFormat.format(Today).equals(test))
{
((ItemForMe) holder).time.setText(test2);
}
else
{
if (YearFormat.format(Today).equals(test3))
{
String cap = test4.substring(0, 1).toUpperCase() + test4.substring(1);
((ItemForMe) holder).time.setText(cap);
}
else {
((ItemForMe) holder).time.setText(test);
}
}
if (!image.equals("")) {
Picasso.get().load(image).into(((ItemForMe) holder).Profil_friend);
}
else
{
((ItemForMe) holder).Profil_friend.setImageResource(R.drawable.default_avata);
}
VuRef.child(ListContacts.get(position).getIDMessage()).addListenerForSingleValueEvent(new ValueEventListener()
{
@Override
public void onDataChange(@NonNull DataSnapshot dataSnapshot)
{
if (dataSnapshot.exists())
{
if (dataSnapshot.getValue().toString().equals("Vu"))
{
((ItemForMe) holder).imageView_vu.setImageDrawable(holder.itemView.getContext().getResources().getDrawable(R.drawable.icons8_seen));
}
else
{
((ItemForMe) holder).imageView_vu.setImageDrawable(holder.itemView.getContext().getResources().getDrawable(R.drawable.icons8_not_vu));
}
}
}
@Override
public void onCancelled(@NonNull DatabaseError databaseError) {
}
});
}
else
{
((ItemForMyFriend) holder).username_friend.setText(username);
((ItemForMyFriend) holder).last_message.setText(last_message);
if (DateFormat.format(Today).equals(test))
{
((ItemForMyFriend) holder).time.setText(test2);
}
else
{
if (YearFormat.format(Today).equals(test3))
{
String cap = test4.substring(0, 1).toUpperCase() + test4.substring(1);
((ItemForMyFriend) holder).time.setText(cap);
}
else {
((ItemForMyFriend) holder).time.setText(test);
}
}
if (!image.equals("")) {
Picasso.get().load(image).into(((ItemForMyFriend) holder).Profil_friend);
}
else
{
((ItemForMyFriend) holder).Profil_friend.setImageResource(R.drawable.default_avata);
}
}
holder.itemView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent groupeIntent = new Intent(v.getContext(), ChatActivity.class);
Fobj.writefile("FriendID",ListContacts.get(position).getFriendID(), context);
Fobj.writefile("MessageID",ListContacts.get(position).getIDMessage(), context);
Fobj.writefile("FriendName",ListContacts.get(position).getFriendUsername(), context);
Fobj.writefile("FriendPicture",ListContacts.get(position).getFriendPicture(), context);
obj.setsIDFRIEND(ListContacts.get(position).getFriendID());
obj.setsIDMESSAGE(ListContacts.get(position).getIDMessage());
obj.setsFRIENDName(ListContacts.get(position).getFriendUsername());
context.startActivity(groupeIntent);
}
});
}
@Override
public int getItemViewType(int position) {
String test = ListContacts.get(position).getSenderID();
if (test.equals(currentuserid))
{
return 1;
}
else
{
return 2;
}
}
@Override
public int getItemCount() {
return ListContacts.size();
}
}
检索数据：
List_of_friends.add(0,new MessageInfo(ID, newgroup, profilepicture,MessageID, Date, Message, Time, SenderID));
adapter.notifyDataSetChanged();
因此,您可以在此图像上看到,第一条消息未正确加载.该用户没有图片,但获得了另一个用户的图片用户…
如果有人可以帮助,那就太好了！
我已经调试过了,看来它有时在固定器中的移动次数比在listsize中的移动次数更多.
解决方法:
您可以像这样使用Glide.
将此添加到app.gradle文件中
implementation "com.github.bumptech.glide:glide:4.8.0"
annotationProcessor "com.github.bumptech.glide:compiler:4.8.0"
像这样用滑行代替毕加索
if (!image.trim().isEmpty())
Glide.with(context).load(image).into(((ItemForMyFriend) holder).Profil_friend);
标签：android-recyclerview,android-imageview,recyclerview-layout,android,android-adapt 来源： https://codeday.me/bug/20191211/2105358.html