I just know how to use Android Studio Code Yesterday. And I got a problem when I need to Change the text when clicking a button.

But when I text, Its don't work.

Here is my code:

public class MainActivity extends AppCompatActivity implements View.OnClickListener {


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        View bubbleView = getLayoutInflater().inflate(R.layout.bubble_view, null);

        Button bubble = (Button) findViewById(R.id.start_bubble);
        bubble.setOnClickListener(this);// calling onClick() method

        Button predict = (Button) bubbleView.findViewById(R.id.predict);
        predict.setOnClickListener(this);
    }

    @Override
    public void onClick(View view) {
        switch (view.getId()) {
            case R.id.start_bubble:
                startService(new Intent(getApplicationContext(), SimpleService.class));
            case R.id.predict:
                View bubbleView = getLayoutInflater().inflate(R.layout.bubble_view, null);
                TextView predict_text = (TextView) bubbleView.findViewById(R.id.predict_text);
                predict_text.setText("Hi"); // <--- It don't work :(
            default:
                break;
        }
    }
}

[EDIT] [] Add some .XML file Here is my activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@ id/activity_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:gravity="center"
    android:orientation="vertical"
    tools:context="com.siddharthks.sampleapp.MainActivity">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:text="Project KHKT"
        android:textColor="#AA000000"
        android:textSize="21sp" />

    <Button
        android:id="@ id/start_bubble"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:text="Paste and Predict"
        android:textSize="18sp" />
</LinearLayout>

and here is my bubble_view.xml, its just for a

<?xml version="1.0" encoding="utf-8"?>
<ScrollView
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical">

        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:paddingStart="16dp"
            android:paddingTop="16dp"
            android:paddingEnd="16dp"
            android:text="Project KHKT"
            android:textColor="#AA000000"
            android:textSize="21sp" />

        <Button
            android:id="@ id/predict"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:gravity="center"
            android:text="Paste and Predict"
            android:textSize="18sp" />

        <TextView
            android:id="@ id/predict_text"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:paddingStart="16dp"
            android:paddingTop="16dp"
            android:paddingEnd="16dp"
            android:textColor="#AA000000"
            android:textSize="21sp" />


    </LinearLayout>
</ScrollView>

Do you have any suggested for me ?

CodePudding user response：

Try This it will add Your bubble view in your parent and you can perform any action on that particular Layout from main Layout.

public class MainActivity extends AppCompatActivity  {


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);


LinearLayout parent = findViewById(R.id.activity_main);        //parent layout.
        View childView = LayoutInflater.from(getApplicationContext()).inflate(R.layout.bubble_view,parent,false);
            
        parent.addView(childView);
       


        Button predict = (Button) childView.findViewById(R.id.predict);


        TextView predict_text = (TextView) childView.findViewById(R.id.predict_text);

        

        predict.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                predict_text.setText("Hi"); // <--- It don't work :(
            }
        });
}
}

CodePudding user response：

Add break to the each case statement in the switch.