转自:
http://blog.csdn.net/xiao__ge/article/details/8662464
说说自己的经历吧：
（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);