Control display orientation of an android device.

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In some cases you want to fix the display orientation for your app in landscape or portrait. In this post i will explain how to restrict the orientation of your app only in landscape or portrait mode.
You can set the display orientation by using the following method

setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);

If you want to restrict the display orientation in portrait mode, then you can use the following.

setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);

Also you have to made some changes in the androidmanifest.xml file as follows.

  <activity

            android:name="com.orientationdemo.MainActivity"

            android:label="@string/app_name" 

            android:screenOrientation="landscape" >

MainActivity.java

1. package com.orientationdemo;
2. import android.os.Bundle;
3. import android.app.Activity;
4. import android.content.pm.ActivityInfo;
5. import android.view.Display;
6. import android.view.Menu;
7. import android.view.WindowManager;
8. import android.widget.Toast;
9. public class MainActivity extends Activity {
10. @Override
11. protected void onCreate(Bundle savedInstanceState) {
12. super.onCreate(savedInstanceState);
13. setContentView(R.layout.activity_main);
14. setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
15. }
16. @Override
17. public boolean onCreateOptionsMenu(Menu menu) {
18. // Inflate the menu; this adds items to the action bar if it is present.
19. getMenuInflater().inflate(R.menu.main, menu);
20. return true;
21. }
22. }

AndroidManifest.xml

1. <?xml version="1.0" encoding="utf-8"?>
2. <manifest xmlns:android="http://schemas.android.com/apk/res/android"
3. package="com.orientationdemo"
4. android:versionCode="1"
5. android:versionName="1.0" >
6. <uses-sdk
7. android:minSdkVersion="8"
8. android:targetSdkVersion="17" />
9. <application
10. android:allowBackup="true"
11. android:icon="@drawable/ic_launcher"
12. android:label="@string/app_name"
13. android:theme="@style/AppTheme" >
14. <activity
15. android:name="com.orientationdemo.MainActivity"
16. android:label="@string/app_name"
17. android:screenOrientation="landscape"
18. >
19. <intent-filter>
20. <action android:name="android.intent.action.MAIN" />
21. <category android:name="android.intent.category.LAUNCHER" />
22. </intent-filter>
23. </activity>
24. </application>
25. </manifest>

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Tuesday 21 May 2013