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Comment résoudre ce problème?java.lang.ClassCastException: android.widget.LinearLayout ne peut pas être casté en android.widget.TextView populateview
Logcat:
FATAL EXCEPTION: main
Process: com.example.vicevirus.myapplication, PID: 10011
java.lang.ClassCastException: android.widget.LinearLayout cannot be cast to android.widget.TextView
at com.example.vicevirus.myapplication.MainActivity$2.populateView(MainActivity.java:66)
at com.example.vicevirus.myapplication.MainActivity$2.populateView(MainActivity.java:63)
at com.firebase.ui.database.FirebaseListAdapter.getView(FirebaseListAdapter.java:135)
at android.widget.AbsListView.obtainView(AbsListView.java:2263)
at android.widget.ListView.makeAndAddView(ListView.java:1790)
at android.widget.ListView.fillDown(ListView.java:691)
at android.widget.ListView.fillFromTop(ListView.java:752)
at android.widget.ListView.layoutChildren(ListView.java:1616)
at android.widget.AbsListView.onLayout(AbsListView.java:2091)
at android.view.View.layout(View.java:14817)
at android.view.ViewGroup.layout(ViewGroup.java:4631)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1671)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1525)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1434)
at android.view.View.layout(View.java:14817)
at android.view.ViewGroup.layout(ViewGroup.java:4631)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453)
at android.widget.FrameLayout.onLayout(FrameLayout.java:388)
at android.view.View.layout(View.java:14817)
at android.view.ViewGroup.layout(ViewGroup.java:4631)
at android.support.v7.widget.ActionBarOverlayLayout.onLayout(ActionBarOverlayLayout.java:437)
at android.view.View.layout(View.java:14817)
at android.view.ViewGroup.layout(ViewGroup.java:4631)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453)
at android.widget.FrameLayout.onLayout(FrameLayout.java:388)
at android.view.View.layout(View.java:14817)
at android.view.ViewGroup.layout(ViewGroup.java:4631)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1671)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1525)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1434)
at android.view.View.layout(View.java:14817)
at android.view.ViewGroup.layout(ViewGroup.java:4631)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453)
at android.widget.FrameLayout.onLayout(FrameLayout.java:388)
at android.view.View.layout(View.java:14817)
at android.view.ViewGroup.layout(ViewGroup.java:4631)
at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2011)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1768)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1024)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5694)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:761)
at android.view.Choreographer.doCallbacks(Choreographer.java:574)
at android.view.Choreographer.doFrame(Choreographer.java:544)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:747)
at android.os.Handler.handleCallback(Handler.java:733)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5019)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
at dalvik.system.NativeStart.main(Native Method)
MainActivity.java:
package com.example.vicevirus.myapplication;
import android.app.Application;
import android.content.Context;
import android.os.*;
import android.support.annotation.NonNull;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
import com.firebase.ui.auth.ui.User;
import com.firebase.ui.database.FirebaseListAdapter;
import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.auth.FirebaseUser;
import com.google.firebase.database.DataSnapshot;
import com.google.firebase.database.DatabaseError;
import com.google.firebase.database.DatabaseReference;
import com.google.firebase.database.FirebaseDatabase;
import com.google.firebase.database.ValueEventListener;
import java.util.HashMap;
public class MainActivity extends AppCompatActivity {
private EditText editText;
private DatabaseReference chat_data_ref;
private DatabaseReference user_name_ref;
private ListView listView;
private FirebaseAuth mAuth;
private String name="";
private static final String TAG = "RegisterActivity";
HashMap<String,String> map;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mAuth= FirebaseAuth.getInstance();
editText=(EditText)findViewById(R.id.edittext);
chat_data_ref= FirebaseDatabase.getInstance().getReference().child("chat_data");
user_name_ref=FirebaseDatabase.getInstance().getReference().child("chat_users").child(mAuth.getCurrentUser().getUid()).child("name");
listView=(ListView)findViewById(R.id.listview);
map=new HashMap<>();
FirebaseAuth auth = FirebaseAuth.getInstance();
FirebaseAuth.AuthStateListener mAuthListener = new FirebaseAuth.AuthStateListener() {
@Override
public void onAuthStateChanged(@NonNull FirebaseAuth firebaseAuth) {
FirebaseUser user = firebaseAuth.getCurrentUser();
if (user != null) {
// User is signed in
Log.d(TAG, "onAuthStateChanged:signed_in:" + user.getUid());
} else {
// User is signed out
Log.d(TAG, "onAuthStateChanged:signed_out");
}
}
};
FirebaseListAdapter<Message> adapter=new FirebaseListAdapter<Message>(
this,Message.class,R.layout.individual_row,chat_data_ref
) {
@Override
protected void populateView(View v, Message model, int position) {
TextView msg=(TextView)v.findViewById(R.id.textView1);
msg.setText(model.getUser_name()+" : "+model.getMessage());
}
};
listView.setAdapter(adapter);
}
public void send(View view) {
chat_data_ref.push().setValue(new Message(editText.getText().toString(),name));//storing actual msg with name of the user
editText.setText("");//clear the msg in edittext
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.menu,menu);
return super.onCreateOptionsMenu(menu);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
if(item.getItemId()==R.id.logout)
{
mAuth.signOut();//when the user clicks signout option this will executes
finish();
}
return super.onOptionsItemSelected(item);
}
}
Mon individual_row.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:id="@+id/textView1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="8dp"
android:layout_marginRight="8dp"
android:baselineAligned="false"
android:orientation="horizontal"
android:padding="2dp" >
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:gravity="top|center" >
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center"
android:orientation="vertical" >
<TextView
android:text="TextView"
android:textStyle="bold"
android:layout_width="match_parent"
android:textSize="20sp"
android:layout_height="wrap_content"
android:id="@+id/textView1"
android:layout_gravity="bottom"
android:background="@drawable/ute"
/>
</RelativeLayout>
</RelativeLayout>
<LinearLayout
android:layout_width="0dip"
android:layout_height="fill_parent"
android:layout_weight="1"
android:background="@drawable/ic_leq"
android:gravity="top|center"
android:orientation="vertical" >
</LinearLayout>
</LinearLayout>
</LinearLayout>
S'il vous plaît aidez-moi.
tqvm !! cela a fonctionné –