ANDROID 隐藏 任务栏 systemui systembar 全屏显示

原文:http://blog.csdn.net/xiaogezq0/article/details/8662464

（1）开始为了隐藏systemui利用过 kill com.android.systemui线程进行的隐藏，但是总有一个com.android.systemui.SystemUIService进行启动

                          我开始还是比较的坏的就弄了一个监听每500毫秒进行检测一次进行查杀

 

代码：

@Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
         ActivityManager am = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);// 获得activity管理

        List<RunningAppProcessInfo> infos = am.getRunningAppProcesses();
        for (RunningAppProcessInfo runningAppProcessInfo : infos) {
            System.out.println("processName:====================:"+runningAppProcessInfo.processName);
            if(runningAppProcessInfo.processName.equals("com.android.systemui")){
                System.out.println("processpid: "+runningAppProcessInfo.pid);
                    String str = "/system/bin/kill "+runningAppProcessInfo.pid;
                    System.out.println("str:  "+str);
                    Process process;
                    Runtime runtime;
                    try {
                        runtime = Runtime.getRuntime();
                        process = runtime.exec("su");
                        System.out.println("01010101010");
                        process = runtime.exec(str);
                         int exitVal = process.waitFor();
                        System.out.println("66666666666666666666666");
                        break;
                    } catch (IOException e) {
                        System.out.println(e);
                    } catch (InterruptedException e) {
                        // TODO Auto-generated catch block
                        e.printStackTrace();
                    }

 

（2）通过长时间研究我研究到了SystemUI.apk，我就就想对这个东西进行操作了。开始我删除掉后，systeui还是运行着，我就用kill命令直接杀掉这个线程，然后就开始报错了。说找不到SystemUI什么的。及其的烦人，不过重新启动就可以了。就没有那个错误了。

苍天真的不负有心人，本人找到一个更好的方法，原来大概是这样的：通过命令移除SystemUI.apk放到一个文件夹中，然后重新启动com.systemui.SystemUIService这个服务

就可以了。如果想恢复就把SystemUI.apk移到/system/app/下并且重新启动com.systemui.SystemUIService这个服务

代码参照：

File systemUIapkFile = new File("/system/app/SystemUI.apk");

   @Override
   public void onCreate(Bundle savedInstanceState) {
       super.onCreate(savedInstanceState);
       setContentView(R.layout.main);

       final ToggleButton systemBarToggleButton = (ToggleButton) findViewById(R.id.systemBarToggleButton);
       systemBarToggleButton.setChecked(systemUIapkFile.exists());
       systemBarToggleButton.setOnCheckedChangeListener(new OnCheckedChangeListener() {
           @Override
           public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
               systemBarToggleButton.setChecked(isChecked);
               switchSystemUI();
               if (isChecked) {
                   Intent intent = new Intent();
                   intent.setComponent(new ComponentName(
                           "com.android.systemui",
                           "com.android.systemui.SystemUIService"));
                   startService(intent);
               }
           }
       });
   }

   private void switchSystemUI() {
       try {
           Process p;
           p = Runtime.getRuntime().exec("su");

           // Attempt to write a file to a root-only
           DataOutputStream os = new DataOutputStream(p.getOutputStream());
           os.writeBytes("mount -o remount,rw /dev/block/stl6 /system\n");
           if (systemUIapkFile.exists()) {
               os.writeBytes("mv /system/app/SystemUI.apk /system/SystemUI.apk\n");
           }else {
               os.writeBytes("mv /system/SystemUI.apk /system/app/SystemUI.apk\n");
           }
           os.writeBytes("mount -o remount,ro /dev/block/stl6 /system\n");

           // Close the terminal
           os.writeBytes("exit\n");
           os.flush();
           p.waitFor();
       } catch (Exception e) {
           ShowErrorGlobal(e);
       }
   }

   protected void ShowErrorGlobal(Exception e) {
       ByteArrayOutputStream baos = new ByteArrayOutputStream();
       PrintStream stream = new PrintStream(baos);
       e.printStackTrace(stream);
       stream.flush();

       new AlertDialog.Builder(this)
               .setIconAttribute(android.R.attr.alertDialogIcon)
               .setTitle("Epic fail")
               .setMessage("Error: " + new String(baos.toByteArray())).show();
   }

（3）

这种更牛逼，什么还自己通过命令操作。都是也路子。人家google给咱提供的有接口直接用就行啊

直接代码参考吧：

int flag = context.getWindow().getDecorView().getSystemUiVisibility();
//      int fullScreen = View.SYSTEM_UI_FLAG_SHOW_FULLSCREEN;
        int fullScreen = 0x8;
        if(visible) {
            if((flag & fullScreen) != 0) {
                context.getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_VISIBLE);
            }
        } else {
            if((flag & fullScreen) == 0) {
                context.getWindow().getDecorView().setSystemUiVisibility(flag | fullScreen);
            }
        }