Android实现隐藏状态栏和标题栏

隐藏标题栏需要使用预定义样式：android:theme=”@android:style/Theme.NoTitleBar”.
隐藏状态栏：android:theme=”@android:style/Theme.NoTitleBar.Fullscreen”.

<?xml version="1.0" encoding="utf-8"?> <manifest   xmlns:android="http://schemas.android.com/apk/res/android"     package="de.vogella.android.temperature"     android:versionCode="1"     android:versionName="1.0">     <application      android:icon="@drawable/icon"      android:label="@string/app_name">         <activity          android:name=".Convert"         android:label="@string/app_name"
         android:theme="@android:style/Theme.NoTitleBar.Fullscreen" >       <intent-filter>         <action android:name="android.intent.action.MAIN" />         <category android:name="android.intent.category.LAUNCHER" />       </intent-filter>     </activity>        </application>   

  <uses-sdk android:minSdkVersion="9" /></manifest> 

@Override
public void onCreate(Bundle savedInstanceState) {
   super.onCreate(savedInstanceState);
   // hide titlebar of application
   // must be before setting the layout
   requestWindowFeature(Window.FEATURE_NO_TITLE);
   // hide statusbar of Android
   // could also be done later
   getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
       WindowManager.LayoutParams.FLAG_FULLSCREEN);
   setContentView(R.layout.main);
   text = (EditText) findViewById(R.id.EditText01);
    }