Saturday, December 14, 2013

Example of using ActionBarCompat with android-support-v7-appcompat

This exercise show the steps to modify the auto-generated "Hello World" by Android ADT/Eclipse, to implement ActionBarCompat, with backward-compatible Action Bar back to Android 2.1.

ActionBarCompat
ActionBarCompat on Nexus One running Android 2.3.6
- Before start our new project, you have to "Create library project with the appcompat v7 support library".

- New a Android Application Project as normal.

- Right click on the project, select Properties, select Android tab on the left box, scroll down on the right to make sure the check box of "is Library" is un-checked, and click the Add button to add library of "android-support-v7-appcompat". then click OK.

android-support-v7-appcompat
add library of android-support-v7-appcompat
- Modify AndroidManifest.xml, change android:theme inside to "@style/Theme.AppCompat". And make sure android:minSdkVersion is equal or higher than 7, Android 2.1.
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.testactionbarcompat"
android:versionCode="1"
android:versionName="1.0" >

<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="18" />

<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/Theme.AppCompat" >
<activity
android:name="com.example.testactionbarcompat.MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />

<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>

</manifest>


- Modify menu resources file, /res/menu/main.xml.
Add a new xmlns, xmlns:myapp="http://schemas.android.com/apk/res-auto". You can choice any name (myapp in my example) you want. But it has to be matched with the name space in .
 Modify to define myapp:showAsAction="always".
<menu 
xmlns:myapp="http://schemas.android.com/apk/res-auto"
xmlns:android="http://schemas.android.com/apk/res/android" >

<item
android:id="@+id/action_settings"
android:orderInCategory="100"
myapp:showAsAction="always"
android:title="@string/action_settings"/>

</menu>


- Modify MainActivity to extend ActionBarActivity with android.support.v7.app.ActionBarActivity imported.
package com.example.testactionbarcompat;

import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.view.Menu;

public class MainActivity extends ActionBarActivity {

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


@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}

}

- Now it can be re-build to generate app with Action Bar running on devices of Android 2.1 or higher.


Next:
Add MenuItem to ActionBarCompat using Java



Visit: ActionBarCompat Step-by-step

Description: Example of using ActionBarCompat with android-support-v7-appcompat Rating: 4.5 Reviewer: Ringga - ItemReviewed: Example of using ActionBarCompat with android-support-v7-appcompat

Ringga

Look for the best that you can get, even if it means you have to look for it from the worst.

If the violation of your copyright, please inform, we will remove Please allow 1-2 business days for an email response.

0 comments:

Post a Comment

 

Copyright @ 2013 Android Apps Download - All Rights Reserved.