android开发笔记之browser全屏功能的实现

在android 的浏览器(browser)中，有一个设置全屏的功能，这二天，我在看浏览器(browser)的源码时，觉得这个其实完全能独立出来，并且对其它的app应用都有参考使用的价值。

(1)MainActivity.java

package com.example.testfullscreen;import android.os.Bundle;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;import android.app.Activity;public class MainActivity extends Activity implements OnClickListener {private Button myButton = null;private Controller myController = null;private boolean isFullScreen = false;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        init();    }private void init() {// TODO Auto-generated method stubmyButton = (Button) findViewById(R.id.myButton);myButton.setOnClickListener(this);myButton.setText("请点击我来测试全屏显示");myController = new Controller(this);}@Overridepublic void onClick(View view) {// TODO Auto-generated method stubif(view == myButton){isFullScreen = !isFullScreen;myController.setFullScreen(isFullScreen);}if(isFullScreen){myButton.setText("现在是全屏显示");}else{myButton.setText("现在不是全屏显示");}}}

(2)Controller.java

package com.example.testfullscreen;import android.app.Activity;import android.view.Window;import android.view.WindowManager;public class Controller{private Activity mActivity;public Controller(Activity mActivity){this.mActivity = mActivity;}public void setFullScreen(boolean enabled){Window win = mActivity.getWindow();        WindowManager.LayoutParams winParams = win.getAttributes();        final int bits = WindowManager.LayoutParams.FLAG_FULLSCREEN;        if (enabled) {            winParams.flags |=  bits;        } else {            winParams.flags &= ~bits;        }        win.setAttributes(winParams);}}

(3)activity_main.xml

<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"    android:paddingBottom="@dimen/activity_vertical_margin"    android:paddingLeft="@dimen/activity_horizontal_margin"    android:paddingRight="@dimen/activity_horizontal_margin"    android:paddingTop="@dimen/activity_vertical_margin"    tools:context=".MainActivity" >    <Button        android:id="@+id/myButton"        android:layout_width="wrap_content"        android:layout_height="wrap_content" /></RelativeLayout>

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