如何kill一个App进程

Posted 2023-02-26 zero-27

杀死自己的进程：

1.

android.os.Process.killProcess(android.os.Process.myPid());

2.

System.exit(0);

杀死别人的进程：

1.参数是目标应用的包名，需要权限，但这个方法有时杀不死进程，正确的说是进程被杀死后，又重新启动了，真正杀死进程我推选第二种方法

<uses-permission android:name="android.permission.KILL_BACKGROUND_PROCESSES"/>

ActivityManager am = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);
am.killBackgroundProcesses("com.android.mms");

2.说起来也郁闷，公司开发刚好遇到这个问题，摸索了好久才找到如下解决方法，需要root权限

public void killApp2(Context context, String packageName) 
	String command = "am force-stop " + packageName + "\\n";
	sendShell(command);

public static String sendShell(String command) 
		Process proc = null;
		DataOutputStream os = null;
		BufferedReader in = null;
		InputStream error = null;
		InputStream input = null;
		try 
			Runtime runtime = Runtime.getRuntime();
			proc = runtime.exec("su\\n");
			String line = "";
			os = new DataOutputStream(proc.getOutputStream());
			os.write((command + "\\n").getBytes());
			os.writeBytes("exit\\n");
			os.flush();
			proc.waitFor();
			// 拿到输出流，开始读取
			input = proc.getInputStream();
			error = proc.getErrorStream();
			int length = input.available();
			int errorLength = error.available();
			if (length > 0 && errorLength == 0) 
				// 执行正确
				in = new BufferedReader(new InputStreamReader(input));
				StringBuffer stringBuffer = new StringBuffer();
				while ((line = in.readLine()) != null) 
					stringBuffer.append(line + "\\n");
					System.out.println("line:" + line);
				
				line = stringBuffer.toString();
			
			return line;
		 catch (Exception ex) 
			ex.printStackTrace();
		 finally 
			try 
				if (os != null) 
					os.close();
				
				if (in != null) 
					in.close();
				
				if (error != null) 
					error.close();
				
				if (input != null) 
					input.close();
				
				if (proc != null) 
					proc.destroy();
				
			 catch (IOException e) 
				e.printStackTrace();
			
		
		return null;