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>