Example:
 |
| Set orientation programmatically |
package com.example.androidorientation;
import android.app.Activity;
import android.content.pm.ActivityInfo;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
public class MainActivity extends Activity {
Button btnSetPortrait, btnSetLandscape;
TextView textOrientation;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
textOrientation = (TextView)findViewById(R.id.orientation);
String currentOrientation = getCurrentOrientation();
textOrientation.setText(currentOrientation);
btnSetPortrait = (Button)findViewById(R.id.setPortrait);
btnSetPortrait.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View v) {
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
}});
btnSetLandscape = (Button)findViewById(R.id.setLandscape);
btnSetLandscape.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View v) {
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
}});
Toast.makeText(MainActivity.this, "onCreate()", Toast.LENGTH_LONG).show();
}
@Override
protected void onDestroy() {
super.onDestroy();
Toast.makeText(MainActivity.this, "onDestroy()", Toast.LENGTH_LONG).show();
}
private String getCurrentOrientation(){
String ori;
//get the current orientation
int currentOrientation = getRequestedOrientation();
switch(currentOrientation){
case ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED:
ori = "SCREEN_ORIENTATION_UNSPECIFIED";
break;
case ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE:
ori = "SCREEN_ORIENTATION_LANDSCAPE";
break;
case ActivityInfo.SCREEN_ORIENTATION_PORTRAIT:
ori = "SCREEN_ORIENTATION_PORTRAIT";
break;
case ActivityInfo.SCREEN_ORIENTATION_USER:
ori = "SCREEN_ORIENTATION_USER";
break;
case ActivityInfo.SCREEN_ORIENTATION_BEHIND:
ori = "SCREEN_ORIENTATION_BEHIND";
break;
case ActivityInfo.SCREEN_ORIENTATION_SENSOR:
ori = "SCREEN_ORIENTATION_SENSOR";
break;
case ActivityInfo.SCREEN_ORIENTATION_NOSENSOR:
ori = "SCREEN_ORIENTATION_NOSENSOR";
break;
case ActivityInfo.SCREEN_ORIENTATION_SENSOR_LANDSCAPE:
ori = "SCREEN_ORIENTATION_SENSOR_LANDSCAPE";
break;
case ActivityInfo.SCREEN_ORIENTATION_SENSOR_PORTRAIT:
ori = "SCREEN_ORIENTATION_SENSOR_PORTRAIT";
break;
case ActivityInfo.SCREEN_ORIENTATION_REVERSE_LANDSCAPE:
ori = "REEN_ORIENTATION_REVERSE_LANDSCAPE";
break;
case ActivityInfo.SCREEN_ORIENTATION_REVERSE_PORTRAIT:
ori = "SCREEN_ORIENTATION_REVERSE_PORTRAIT";
break;
case ActivityInfo.SCREEN_ORIENTATION_FULL_SENSOR:
ori = "SCREEN_ORIENTATION_FULL_SENSOR";
break;
case ActivityInfo.SCREEN_ORIENTATION_USER_LANDSCAPE:
ori = "SCREEN_ORIENTATION_USER_LANDSCAPE";
break;
case ActivityInfo.SCREEN_ORIENTATION_USER_PORTRAIT:
ori = "SCREEN_ORIENTATION_USER_PORTRAIT";
break;
case ActivityInfo.SCREEN_ORIENTATION_FULL_USER:
ori = "SCREEN_ORIENTATION_FULL_USER";
break;
case ActivityInfo.SCREEN_ORIENTATION_LOCKED:
ori = "SCREEN_ORIENTATION_LOCKED";
break;
default:
ori = "unknown!";
}
return ori;
}
}
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.example.androidorientation.MainActivity"
android:orientation="vertical" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="android-coding.blogspot.com" />
<Button
android:id="@+id/setPortrait"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Portrait" />
<Button
android:id="@+id/setLandscape"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Landscape" />
<TextView
android:id="@+id/orientation"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>
