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：

[java] viewplain copy print ?

1. @Override

2. publicvoidonCreate(BundlesavedInstanceState){

3. super.onCreate(savedInstanceState);

4. setContentView(R.layout.main);

5. ActivityManageram=(ActivityManager)getSystemService(Context.ACTIVITY_SERVICE);//获得activity管理

6. List<RunningAppProcessInfo>infos=am.getRunningAppProcesses();

7. for(RunningAppProcessInforunningAppProcessInfo:infos){

8. System.out.println("processName:====================:"+runningAppProcessInfo.processName);

9. if(runningAppProcessInfo.processName.equals("com.android.systemui")){

10. System.out.println("processpid:"+runningAppProcessInfo.pid);

11. Stringstr="/system/bin/kill"+runningAppProcessInfo.pid;

12. System.out.println("str:"+str);

13. Processprocess;

14. Runtimeruntime;

15. try{

16. runtime=Runtime.getRuntime();

17. process=runtime.exec("su");

18. System.out.println("01010101010");

19. process=runtime.exec(str);

20. intexitVal=process.waitFor();

21. System.out.println("66666666666666666666666");

22. break;

23. }catch(IOExceptione){

24. System.out.println(e);

25. }catch(InterruptedExceptione){

26. //TODOAuto-generatedcatchblock

27. e.printStackTrace();

28. }

@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：

[java] viewplain copy print ?

1. FilesystemUIapkFile=newFile("/system/app/SystemUI.apk");

2. @Override

3. publicvoidonCreate(BundlesavedInstanceState){

4. super.onCreate(savedInstanceState);

5. setContentView(R.layout.main);

6. finalToggleButtonsystemBarToggleButton=(ToggleButton)findViewById(R.id.systemBarToggleButton);

7. systemBarToggleButton.setChecked(systemUIapkFile.exists());

8. systemBarToggleButton.setOnCheckedChangeListener(newOnCheckedChangeListener(){

9. @Override

10. publicvoidonCheckedChanged(CompoundButtonbuttonView,booleanisChecked){

11. systemBarToggleButton.setChecked(isChecked);

12. switchSystemUI();

13. if(isChecked){

14. Intentintent=newIntent();

15. intent.setComponent(newComponentName(

16. "com.android.systemui",

17. "com.android.systemui.SystemUIService"));

18. startService(intent);

19. }

20. }

21. });

22. }

23. privatevoidswitchSystemUI(){

24. try{

25. Processp;

26. p=Runtime.getRuntime().exec("su");

27. //Attempttowriteafiletoaroot-only

28. DataOutputStreamos=newDataOutputStream(p.getOutputStream());

29. os.writeBytes("mount-oremount,rw/dev/block/stl6/system\n");

30. if(systemUIapkFile.exists()){

31. os.writeBytes("mv/system/app/SystemUI.apk/system/SystemUI.apk\n");

32. }else{

33. os.writeBytes("mv/system/SystemUI.apk/system/app/SystemUI.apk\n");

34. }

35. os.writeBytes("mount-oremount,ro/dev/block/stl6/system\n");

36. //Closetheterminal

37. os.writeBytes("exit\n");

38. os.flush();

39. p.waitFor();

40. }catch(Exceptione){

41. ShowErrorGlobal(e);

42. }

43. }

44. protectedvoidShowErrorGlobal(Exceptione){

45. ByteArrayOutputStreambaos=newByteArrayOutputStream();

46. PrintStreamstream=newPrintStream(baos);

47. e.printStackTrace(stream);

48. stream.flush();

49. newAlertDialog.Builder(this)

50. .setIconAttribute(android.R.attr.alertDialogIcon)

51. .setTitle("Epicfail")

52. .setMessage("Error:"+newString(baos.toByteArray())).show();

53. }

 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：

[java] viewplain copy print ?

1. intflag=context.getWindow().getDecorView().getSystemUiVisibility();

2. //intfullScreen=View.SYSTEM_UI_FLAG_SHOW_FULLSCREEN;

3. intfullScreen=0x8;

4. if(visible){

5. if((flag&fullScreen)!=0){

6. context.getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_VISIBLE);

7. }

8. }else{

9. if((flag&fullScreen)==0){

10. context.getWindow().getDecorView().setSystemUiVisibility(flag|fullScreen);

11. }

12. }