Android获取应用程序名称(ApplicationName)

MainActivity如下:

package cn.testapplicationname;
import android.os.Bundle;
import android.widget.TextView;
import android.app.Activity;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageManager;
/**
 * Demo描述:
 * 获取应用程序名称(ApplicationName)
 */
public class MainActivity extends Activity {
	private TextView mTextView;

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

	private void init() {
		mTextView = (TextView) findViewById(R.id.textView);
		String applicationName = getApplicationName();
		mTextView.setText("该应用名字:"+applicationName);
	}

	public String getApplicationName() {
		PackageManager packageManager = null;
		ApplicationInfo applicationInfo = null;
		try {
			packageManager = getApplicationContext().getPackageManager();
			applicationInfo = packageManager.getApplicationInfo(getPackageName(), 0);
		} catch (PackageManager.NameNotFoundException e) {
			applicationInfo = null;
		}
		String applicationName = 
		(String) packageManager.getApplicationLabel(applicationInfo);
		return applicationName;
	}

}

main.xml如下:

<RelativeLayout 
    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"
    >

    <TextView
        android:id="@+id/textView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/hello_world" 
        android:layout_centerInParent="true"
    />

</RelativeLayout>