Post from TextView

Description

The following code shows how to post Runnable from TextView.

Example

Layout xml


<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent">

    <TextView android:id="@+id/my_text_view"
        android:layout_width="fill_parent" 
        android:layout_height="wrap_content" 
        android:text="Hello World, MainActivity!"/>

</LinearLayout>

Java code


import android.app.Activity;
import android.os.Bundle;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends Activity {
  private TextView mTextView;

  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    mTextView = (TextView) findViewById(R.id.my_text_view);

    mTextView.post(new Runnable() {

      @Override
      public void run() {
        String size = String.format("TextView's width: %d, height: %d",
            mTextView.getWidth(), mTextView.getHeight());
        Toast.makeText(MainActivity.this, size, Toast.LENGTH_SHORT).show();

      }
    });
  }
}
Post from TextView




















Home »
  Android »
    Android UI »




UI Basics
Action Bar
Animation
Button
Canvas
CheckBox
Clock Date Picker
Dialog
EditText
Event
Fragment
Gesture
GridView
ImageView
Layout
ListView
Map
Menu
Model
OpenGL
ProgressBar
RadioButton
Spinner
Tab
TextView
Thread
Toast
Video
View
WebView