Android执行shell命令的代码该怎么写

Android执行shell命令的代码该怎么写

Android中执行adb shell命令的方式如下：

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public static synchronized String run(String[] cmd, String workdirectory) throws IOException { StringBuffer result = new StringBuffer(); try { // 创建操作系统进程（也可以由Runtime.exec()启动） // Runtime runtime = Runtime.getRuntime(); // Process proc = runtime.exec(cmd); // InputStream inputstream = proc.getInputStream(); ProcessBuilder builder = new ProcessBuilder(cmd); InputStream in = null; // 设置一个路径（绝对路径了就不一定需要） if (workdirectory != null) { // 设置工作目录（同上） builder.directory(new File(workdirectory)); // 合并标准错误和标准输出 builder.redirectErrorStream(true); // 启动一个新进程 Process process = builder.start(); // 读取进程标准输出流 in = process.getInputStream(); byte[] re = new byte[1024]; while (in.read(re) != -1) { result = result.append(new String(re)); } } // 关闭输入流 if (in != null) { in.close(); } } catch (Exception ex) { ex.printStackTrace(); } return result.toString(); }

android系统底层采用的是linux，所以adb这样的linux指令是可以在java代码中调用的，可以使用ProcessBuilder 这个方法来执行对应的指令。还可以通过如下方式执行：

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Process p = Runtime.getRuntime().exec("ls"); String data = null; BufferedReader ie = new BufferedReader(new InputStreamReader(p.getErrorStream())); BufferedReader in = new BufferedReader(new InputStreamReader(p.getInputStream())); String error = null; while ((error = ie.readLine()) != null && !error.equals("null")) { data += error + "\n"; } String line = null; while ((line = in.readLine()) != null && !line.equals("null")) { data += line + "\n"; } Log.v("ls", data);