我正在尝试使用Glide存储库加载图像,然后最终将该图像添加到gridview中。我目前正在尝试通过创建空白imageview,加载图像,将图像添加到imageview,然后将imageview添加到我的阵列适配器来做到这一点。我与arrayadapter一起使用的布局包含单个imageview。这是我的代码,布局和尝试加载图像时遇到的错误
final Query chatRoomMsgs = db.collection("chatrooms").document(chatRoomID).collection("Messages").whereEqualTo("sentby", UID);
chatRoomMsgs.get()
.addOnSuccessListener(new OnSuccessListener<QuerySnapshot>() {
@Override
public void onSuccess(QuerySnapshot queryDocumentSnapshots) {
//ArrayList<ImageView> sentPicsURLS = new ArrayList<>();
for(QueryDocumentSnapshot documentSnapshot: queryDocumentSnapshots){
for(int i = 0; i < queryDocumentSnapshots.size(); i++) {
//sentPicsURLS.add(documentSnapshot.getString("image"));
ImageView tempimage = new ImageView(getApplicationContext());
Glide.with(Chatroom.this).load("gs://testapp-72419.appspot.com" + documentSnapshot.getString("image")).into(tempimage);
arrayAdapter.add(tempimage);
arrayAdapter.notifyDataSetChanged();
}
//Do what you need with your list
}
}
});
我的数组适配器:
final ArrayAdapter arrayAdapter = new ArrayAdapter(Chatroom.this, R.layout.chatroom_sent_images,R.id.sent_iv);
sentPics.setAdapter(arrayAdapter);
chatroom_sent_images布局文件
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 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:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#B84CD5">
<ImageView
android:id="@+id/sent_iv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="21dp"
android:layout_marginLeft="21dp"
android:layout_marginTop="24dp"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:srcCompat="@android:mipmap/sym_def_app_icon" />
</androidx.constraintlayout.widget.ConstraintLayout>
然后是应用尝试加载图像时出现的奇怪错误:
java.lang.IllegalStateException: ArrayAdapter requires the resource ID to be a TextView
Caused by: java.lang.ClassCastException: androidx.appcompat.widget.AppCompatImageView cannot be cast to android.widget.TextView
我不确定在任何地方都提到一个testView
吗?有任何想法吗?谢谢!
尝试一下:
ImageView tempimage = new ImageView(getActivity().getApplicationContext());
代替此:
ImageView tempimage = new ImageView(getApplicationContext());