Android应用程序获取ROOT权限的方法(android中如何通过代码检测是否有root权限？)
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private boolean isRoot(String command){Process process = null; DataOutputStream os = null; try { /*Executes the specified program in a separate native process. * The new process inherits the environment of the caller. * Calling this method is equivalent to calling exec(prog, null, null). *///如果设备获取了root权限，那么程序执行su命令时，就会提示用户进行授权process = Runtime.getRuntime().exec("su"); os = new DataOutputStream(process.getOutputStream()); os.writeBytes(command+"\n"); os.writeBytes("exit\n"); os.flush(); process.waitFor(); } catch (Exception e) { //如果已经root，但是用户选择拒绝授权,e.getMessage() = write failed: EPIPE (Broken pipe) //如果没有root，,e.getMessage()= Error running exec(). Command: [su] Working Directory: null Environment: null Logger.d("Unexpected error - Here is what I know: "+e.getMessage()); return false; } finally { try { if (os != null) { os.close(); } process.destroy(); } catch (Exception e) { // nothing } } return true; }
