ANDROID 隐藏 任务栏 systemui systembar 全屏显示

说说自己的经历吧：

（1）开始为了隐藏systemui利用过killcom.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
 publicvoidonCreate(BundlesavedInstanceState){
 super.onCreate(savedInstanceState);
 setContentView(R.layout.main);
 ActivityManageram=(ActivityManager)getSystemService(Context.ACTIVITY_SERVICE);//获得activity管理
 List<RunningAppProcessInfo>infos=am.getRunningAppProcesses();
 for(RunningAppProcessInforunningAppProcessInfo:infos){
 System.out.println("processName:====================:"+runningAppProcessInfo.processName);
 if(runningAppProcessInfo.processName.equals("com.android.systemui")){
 System.out.println("processpid:"+runningAppProcessInfo.pid);
 Stringstr="/system/bin/kill"+runningAppProcessInfo.pid;
 System.out.println("str:"+str);
 Processprocess;
 Runtimeruntime;
 try{
 runtime=Runtime.getRuntime();
 process=runtime.exec("su");
 System.out.println("01010101010");
 process=runtime.exec(str);
 intexitVal=process.waitFor();
 System.out.println("66666666666666666666666");
 break;
 }catch(IOExceptione){
 System.out.println(e);
 }catch(InterruptedExceptione){
 //TODOAuto-generatedcatchblock
 e.printStackTrace();
 }

@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：

 FilesystemUIapkFile=newFile("/system/app/SystemUI.apk");
 @Override
 publicvoidonCreate(BundlesavedInstanceState){
 super.onCreate(savedInstanceState);
 setContentView(R.layout.main);
 finalToggleButtonsystemBarToggleButton=(ToggleButton)findViewById(R.id.systemBarToggleButton);
 systemBarToggleButton.setChecked(systemUIapkFile.exists());
 systemBarToggleButton.setOnCheckedChangeListener(newOnCheckedChangeListener(){
 @Override
 publicvoidonCheckedChanged(CompoundButtonbuttonView,booleanisChecked){
 systemBarToggleButton.setChecked(isChecked);
 switchSystemUI();
 if(isChecked){
 Intentintent=newIntent();
 intent.setComponent(newComponentName(
 "com.android.systemui",
 "com.android.systemui.SystemUIService"));
 startService(intent);
 }
 }
 });
 }
 privatevoidswitchSystemUI(){
 try{
 Processp;
 p=Runtime.getRuntime().exec("su");
 //Attempttowriteafiletoaroot-only
 DataOutputStreamos=newDataOutputStream(p.getOutputStream());
 os.writeBytes("mount-oremount,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-oremount,ro/dev/block/stl6/system\n");
 //Closetheterminal
 os.writeBytes("exit\n");
 os.flush();
 p.waitFor();
 }catch(Exceptione){
 ShowErrorGlobal(e);
 }
 }
 protectedvoidShowErrorGlobal(Exceptione){
 ByteArrayOutputStreambaos=newByteArrayOutputStream();
 PrintStreamstream=newPrintStream(baos);
 e.printStackTrace(stream);
 stream.flush();
 newAlertDialog.Builder(this)
 .setIconAttribute(android.R.attr.alertDialogIcon)
 .setTitle("Epicfail")
 .setMessage("Error:"+newString(baos.toByteArray())).show();
 }

 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：

 intflag=context.getWindow().getDecorView().getSystemUiVisibility();
 //intfullScreen=View.SYSTEM_UI_FLAG_SHOW_FULLSCREEN;
 intfullScreen=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);
 }
 }