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);
}