通过onWindowAttributesChanged和onSystemUiVisibilityChange监听状态栏页面的隐藏与显示、动态显示与隐藏状态栏

来源：互联网发布：汽车网络销售编辑：程序博客网时间：2024/05/17 00:49

转载自：http://blog.csdn.net/xiangyong_1521/article/details/51333437

最近添加系统功能需要监听状态栏的隐藏与显示，小小研究了下结合资料做下总结：

首先我用这个WindowAttributesChanged方法来监听视频播放页面状态栏的隐藏与显示，通过打印getWindow().getAttributes().flags，获取页面属性，从而来判断状态栏的显示与隐藏，可正常监听！

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@Override
ublic void onWindowAttributesChanged(LayoutParams params) {
super.onWindowAttributesChanged(params);
Log.e(”Even”,“屏幕状态”+getWindow().getAttributes().flags);
if(getWindow().getAttributes().flags==8455424){
Log.i(”TAG”,“全屏状态”);
}else if(getWindow().getAttributes().flags==8454400){
Log.i(”TAG”,“非全屏状态”);
}

  @Override    public void onWindowAttributesChanged(LayoutParams params) {        super.onWindowAttributesChanged(params);        Log.e("Even","屏幕状态"+getWindow().getAttributes().flags);        if(getWindow().getAttributes().flags==8455424){            Log.i("TAG","全屏状态");                    }else if(getWindow().getAttributes().flags==8454400){            Log.i("TAG","非全屏状态");                   }    }

但是很快发现其他的程序用这个方法监听都只会执行一次，毕竟感觉旁门左道！于是几近波折成功地使用OnSystemUiVisibilityChangeListener接口来监听！

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@Override
public void onSystemUiVisibilityChange(int visibility) {
if (visibility==View.SYSTEM_UI_FLAG_FULLSCREEN||visibility==View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN) {
Log.i(”TAG”,“全屏状态======”);
}else{
Log.i(”TAG”,“非全屏状态======”);
}
}

@Override    public void onSystemUiVisibilityChange(int visibility) {        if (visibility==View.SYSTEM_UI_FLAG_FULLSCREEN||visibility==View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN) {            Log.i("TAG","全屏状态======");          }else{            Log.i("TAG","非全屏状态======");        }    }

之前由于未加setOnSystemUiVisibilityChangeListener(this);监听，几度放弃这个方法而停滞！我勒个去。。

SystemUiVisibility(int visibility)方法可传入的实参：
View.SYSTEM_UI_FLAG_VISIBLE：显示状态栏，Activity不全屏显示(恢复到有状态的正常情况)。
View.INVISIBLE：隐藏状态栏，同时Activity会伸展全屏显示。
View.SYSTEM_UI_FLAG_FULLSCREEN：Activity全屏显示，且状态栏被隐藏覆盖掉。
View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN：Activity全屏显示，但状态栏不会被隐藏覆盖，状态栏依然可见，Activity顶端布局部分会被状态遮住。
View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION：效果同View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
View.SYSTEM_UI_LAYOUT_FLAGS：效果同View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
View.SYSTEM_UI_FLAG_HIDE_NAVIGATION：隐藏虚拟按键(导航栏)。有些手机会用虚拟按键来代替物理按键。
View.SYSTEM_UI_FLAG_LOW_PROFILE：状态栏显示处于低能显示状态(low profile模式)，状态栏上一些图标显示会被隐藏。

写到这里干脆把状态栏设置隐藏与显示的方法也整理下：

View类提供了setSystemUiVisibility和getSystemUiVisibility方法，这两个方法实现对状态栏的动态显示或隐藏的操作，以及获取状态栏当前可见性。

下面将以一个demo来验证view的setSystemUiVisibility(int visibility)方法实现动态操作状态栏:

1、maiActivity.java:

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package com.example.handlestatusbar;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.RelativeLayout;
import android.widget.Toast;
@SuppressLint(“NewApi”)
public class MainActivity extends Activity implements OnClickListener
{
private RelativeLayout mRLayout;
private Button mBtn1, mBtn2, mBtn3, mBtn4, mBtn5, mBtn6, mBtn7, mBtn8;
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mRLayout = (RelativeLayout)findViewById(R.id.content);
mBtn1 = (Button)findViewById(R.id.btn1);
mBtn2 = (Button)findViewById(R.id.btn2);
mBtn3 = (Button)findViewById(R.id.btn3);
mBtn4 = (Button)findViewById(R.id.btn4);
mBtn5 = (Button)findViewById(R.id.btn5);
mBtn6 = (Button)findViewById(R.id.btn6);
mBtn7 = (Button)findViewById(R.id.btn7);
mBtn8 = (Button)findViewById(R.id.btn8);
mBtn1.setOnClickListener(this);
mBtn2.setOnClickListener(this);
mBtn3.setOnClickListener(this);
mBtn4.setOnClickListener(this);
mBtn5.setOnClickListener(this);
mBtn6.setOnClickListener(this);
mBtn7.setOnClickListener(this);
mBtn8.setOnClickListener(this);
}
@Override
public void onClick(View v)
{
// TODO Auto-generated method stub
switch (v.getId())
{
case R.id.btn1:
//显示状态栏，Activity不全屏显示(恢复到有状态的正常情况)
mRLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_VISIBLE);
break;
case R.id.btn2:
//隐藏状态栏，同时Activity会伸展全屏显示
mRLayout.setSystemUiVisibility(View.INVISIBLE);
break;
case R.id.btn3:
//Activity全屏显示，且状态栏被隐藏覆盖掉。
mRLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_FULLSCREEN);
break;
case R.id.btn4:
//Activity全屏显示，但状态栏不会被隐藏覆盖，状态栏依然可见，Activity顶端布局部分会被状态遮住
mRLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);
break;
case R.id.btn5:
//同mRLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);
mRLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION);
break;
case R.id.btn6:
//同mRLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);
mRLayout.setSystemUiVisibility(View.SYSTEM_UI_LAYOUT_FLAGS);
break;
case R.id.btn7:
//隐藏虚拟按键(导航栏)
mRLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION);
break;
case R.id.btn8:
//状态栏显示处于低能显示状态(low profile模式)，状态栏上一些图标显示会被隐藏。
mRLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LOW_PROFILE);
break;
}
}
}

package com.example.handlestatusbar;import android.annotation.SuppressLint;import android.app.Activity;import android.os.Bundle;import android.view.Menu;import android.view.MenuItem;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;import android.widget.RelativeLayout;import android.widget.Toast;@SuppressLint("NewApi")public class MainActivity extends Activity implements OnClickListener{    private RelativeLayout mRLayout;    private Button mBtn1, mBtn2, mBtn3, mBtn4, mBtn5, mBtn6, mBtn7, mBtn8;    @Override    protected void onCreate(Bundle savedInstanceState)     {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);        mRLayout = (RelativeLayout)findViewById(R.id.content);        mBtn1 = (Button)findViewById(R.id.btn1);        mBtn2 = (Button)findViewById(R.id.btn2);        mBtn3 = (Button)findViewById(R.id.btn3);        mBtn4 = (Button)findViewById(R.id.btn4);        mBtn5 = (Button)findViewById(R.id.btn5);        mBtn6 = (Button)findViewById(R.id.btn6);        mBtn7 = (Button)findViewById(R.id.btn7);        mBtn8 = (Button)findViewById(R.id.btn8);        mBtn1.setOnClickListener(this);        mBtn2.setOnClickListener(this);        mBtn3.setOnClickListener(this);        mBtn4.setOnClickListener(this);        mBtn5.setOnClickListener(this);        mBtn6.setOnClickListener(this);        mBtn7.setOnClickListener(this);        mBtn8.setOnClickListener(this);         }    @Override    public void onClick(View v)    {        // TODO Auto-generated method stub        switch (v.getId())         {        case R.id.btn1:            //显示状态栏，Activity不全屏显示(恢复到有状态的正常情况)            mRLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_VISIBLE);                break;        case R.id.btn2:            //隐藏状态栏，同时Activity会伸展全屏显示            mRLayout.setSystemUiVisibility(View.INVISIBLE);            break;        case R.id.btn3:            //Activity全屏显示，且状态栏被隐藏覆盖掉。            mRLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_FULLSCREEN);            break;              case R.id.btn4:            //Activity全屏显示，但状态栏不会被隐藏覆盖，状态栏依然可见，Activity顶端布局部分会被状态遮住            mRLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);            break;        case R.id.btn5:            //同mRLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);            mRLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION);            break;        case R.id.btn6:            //同mRLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);            mRLayout.setSystemUiVisibility(View.SYSTEM_UI_LAYOUT_FLAGS);            break;        case R.id.btn7:            //隐藏虚拟按键(导航栏)            mRLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION);            break;        case R.id.btn8:            //状态栏显示处于低能显示状态(low profile模式)，状态栏上一些图标显示会被隐藏。            mRLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LOW_PROFILE);            break;        }    }}

2、Main.xml：

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<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”
tools:context=”.MainActivity”
android:id=”@+id/content”>
<LinearLayout
android:orientation=”vertical”
android:layout_width=”match_parent”
android:layout_height=”match_parent”>
<Button
android:id=”@+id/btn1”
android:layout_width=”fill_parent”
android:layout_height=”wrap_content”
android:text=”@string/s1”/>
<Button
android:id=”@+id/btn2”
android:layout_width=”fill_parent”
android:layout_height=”wrap_content”
android:text=”@string/s2”/>
<Button
android:id=”@+id/btn3”
android:layout_width=”fill_parent”
android:layout_height=”wrap_content”
android:text=”@string/s3”/>
<Button
android:id=”@+id/btn4”
android:layout_width=”fill_parent”
android:layout_height=”wrap_content”
android:text=”@string/s4”/>
<Button
android:id=”@+id/btn5”
android:layout_width=”fill_parent”
android:layout_height=”wrap_content”
android:text=”@string/s5”/>
<Button
android:id=”@+id/btn6”
android:layout_width=”fill_parent”
android:layout_height=”wrap_content”
android:text=”@string/s6”/>
<Button
android:id=”@+id/btn7”
android:layout_width=”fill_parent”
android:layout_height=”wrap_content”
android:text=”@string/s7”/>
<Button
android:id=”@+id/btn8”
android:layout_width=”fill_parent”
android:layout_height=”wrap_content”
android:text=”@string/s8”/>
</LinearLayout>
</RelativeLayout>

<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"    tools:context=".MainActivity"     android:id="@+id/content">   <LinearLayout        android:orientation="vertical"       android:layout_width="match_parent"       android:layout_height="match_parent">        <Button         android:id="@+id/btn1"        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:text="@string/s1"/>    <Button         android:id="@+id/btn2"        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:text="@string/s2"/>    <Button         android:id="@+id/btn3"        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:text="@string/s3"/>    <Button         android:id="@+id/btn4"        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:text="@string/s4"/>    <Button         android:id="@+id/btn5"        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:text="@string/s5"/>    <Button         android:id="@+id/btn6"        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:text="@string/s6"/>    <Button         android:id="@+id/btn7"        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:text="@string/s7"/>    <Button         android:id="@+id/btn8"        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:text="@string/s8"/>   </LinearLayout></RelativeLayout>

3、String.xml：

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<?xml version=“1.0” encoding=“utf-8”?>
<resources>
<string name=”app_name”>HandleStatusBar</string>
<string name=”hello_world”>Hello world!</string>
<string name=”menu_settings”>Settings</string>
<string name=”s1”>SYSTEM_UI_FLAG_VISIBLE</string>
<string name=”s2”>INVISIBLE</string>
<string name=”s3”>SYSTEM_UI_FLAG_FULLSCREEN</string>
<string name=”s4”>SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN</string>
<string name=”s5”>SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION</string>
<string name=”s6”>SYSTEM_UI_LAYOUT_FLAGS</string>
<string name=”s7”>SYSTEM_UI_FLAG_HIDE_NAVIGATION</string>
<string name=”s8”>SYSTEM_UI_FLAG_LOW_PROFILE</string>
</resources>

<?xml version="1.0" encoding="utf-8"?><resources>    <string name="app_name">HandleStatusBar</string>    <string name="hello_world">Hello world!</string>    <string name="menu_settings">Settings</string>    <string name="s1">SYSTEM_UI_FLAG_VISIBLE</string>    <string name="s2">INVISIBLE</string>    <string name="s3">SYSTEM_UI_FLAG_FULLSCREEN</string>    <string name="s4">SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN</string>    <string name="s5">SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION</string>    <string name="s6">SYSTEM_UI_LAYOUT_FLAGS</string>    <string name="s7">SYSTEM_UI_FLAG_HIDE_NAVIGATION</string>    <string name="s8">SYSTEM_UI_FLAG_LOW_PROFILE</string></resources>

例子是转载的，代码很简单易懂，不过自己最好敲一遍！

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