android之requestWindowFeature详解

requestWindowFeature可以设置的值有：
1.DEFAULT_FEATURES：系统默认状态，一般不需要指定

2.FEATURE_CONTEXT_MENU：启用ContextMenu，默认该项已启用，一般无需指定

3.FEATURE_CUSTOM_TITLE：自定义标题。当需要自定义标题时必须指定。如：标题是一个按钮时

4.FEATURE_INDETERMINATE_PROGRESS：不确定的进度

5.FEATURE_LEFT_ICON：标题栏左侧的图标

6.FEATURE_NO_TITLE：无标题

7.FEATURE_OPTIONS_PANEL：启用“选项面板”功能，默认已启用。

8.FEATURE_PROGRESS：进度指示器功能

9.FEATURE_RIGHT_ICON:标题栏右侧的图标

代码如下

package jason.my;import android.app.Activity;import android.os.Bundle;import android.os.Handler;import android.os.Message;import android.view.Window;import android.view.WindowManager;public class WindowFeatureDemoActivity extends Activity {    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        // requestWindowFeature();的取值        // 1.DEFAULT_FEATURES：系统默认状态，一般不需要指定        // 2.FEATURE_CONTEXT_MENU：启用ContextMenu，默认该项已启用，一般无需指定        // 3.FEATURE_CUSTOM_TITLE：自定义标题。当需要自定义标题时必须指定。如：标题是一个按钮时        // 4.FEATURE_INDETERMINATE_PROGRESS：不确定的进度        // 5.FEATURE_LEFT_ICON：标题栏左侧的图标        // 6.FEATURE_NO_TITLE：无标题        // 7.FEATURE_OPTIONS_PANEL：启用“选项面板”功能，默认已启用。        // 8.FEATURE_PROGRESS：进度指示器功能        // 9.FEATURE_RIGHT_ICON:标题栏右侧的图标        //        showFEATURE_INDETERMINATE_PROGRESS();      //        showFEATURE_CUSTOM_TITLE();//        showFEATURE_LEFT_ICON();//        showFEATURE_NO_TITLE();             showFEATURE_PROGRESS();    }    private void showFEATURE_INDETERMINATE_PROGRESS() {        requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);        setContentView(R.layout.main);        getWindow().setFeatureInt(Window.FEATURE_INDETERMINATE_PROGRESS, R.layout.progress);        // 必须得加上否则显示不出效果 可以通过这个在以后设置显示或隐藏        setProgressBarIndeterminateVisibility(true);    }    private void showFEATURE_CUSTOM_TITLE() {        // 自定义标题。当需要自定义标题时必须指定。如：标题是一个按钮时         requestWindowFeature(Window.FEATURE_CUSTOM_TITLE);        setContentView(R.layout.main);        getWindow().setFeatureInt(Window.FEATURE_CUSTOM_TITLE, R.layout.customtitle);    }    private void showFEATURE_LEFT_ICON()    {         requestWindowFeature(Window.FEATURE_LEFT_ICON);         setContentView(R.layout.main);         getWindow().setFeatureDrawableResource(Window.FEATURE_LEFT_ICON, R.drawable.icon);    }    private void showFEATURE_NO_TITLE()    {         requestWindowFeature(Window.FEATURE_NO_TITLE);         setContentView(R.layout.main);         // 加上这句设置为全屏 不加则只隐藏title         getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,         WindowManager.LayoutParams.FLAG_FULLSCREEN);    }    private void showFEATURE_PROGRESS()    {        requestWindowFeature(Window.FEATURE_PROGRESS);        setProgressBarVisibility(true);        setContentView(R.layout.main);        setTitle("");        getWindow().setFeatureInt(Window.FEATURE_PROGRESS, Window.PROGRESS_VISIBILITY_ON);        // 通过线程来改变ProgressBar的值         new Thread(new Runnable() {            public void run() {                for (int i = 0; i < 10; i++) {                    try {                        Thread.sleep(1000);                        Message m = new Message();                        m.what = (i + 1) * 20;                        WindowFeatureDemoActivity.this.myMessageHandler.sendMessage(m);                    } catch (Exception e) {                        e.printStackTrace();                    }                }            }        }).start();    }    Handler myMessageHandler = new Handler() {        // @Override        public void handleMessage(Message msg) {            // 设置标题栏中前景的一个进度条进度值            setProgress(100 * msg.what);            // 设置标题栏中后面的一个进度条进度值            setSecondaryProgress(100 * msg.what + 10);            super.handleMessage(msg);        }    };}

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