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安卓ROOT权限代码

2024-08-08 12:24:31   238人阅读

android上root权限的代码，工具类还提供在手机上执行指令的方法。PS：并不是所有手机都能root成功，开发项目时尽量不要考虑root，这个代码看看就行。

[1].[代码] [Java]代码 跳至 [1]

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packagecom.linin.utils;
 
importjava.io.DataInputStream;
importjava.io.DataOutputStream;
importjava.io.IOException;
 
/**
 * root权限工具类
 *
 * @author linin
 *
 */
publicclass RootUtil {
 
    privatestatic final String TAG = "linin.root";
    privatestatic boolean mHaveRoot = false;
 
    /**
     * 判断机器Android是否已经root，即是否获取root权限
     */
    publicstatic boolean haveRoot() {
        if(!mHaveRoot) {
            intret = execRootCmdSilent("echo test");// 通过执行测试命令来检测
            if(ret != -1) {
                L.i(TAG,"have root!");
                mHaveRoot = true;
            }else{
                L.i(TAG,"not root!");
            }
        }else{
            L.i(TAG,"mHaveRoot = true, have root!");
        }
        returnmHaveRoot;
    }
 
    /** 获取root权限 */
    publicstatic boolean root() {
        try{
            Runtime.getRuntime().exec(
                    newString[] { "/system/bin/su","-c",
                            "chmod 777 /dev/graphics/fb0" });
        }catch(IOException e) {
            e.printStackTrace();
            L.i(TAG,"root fail!");
            returnfalse;
        }
        L.i(TAG,"root success!");
        returntrue;
    }
 
    /**
     * 执行命令并且输出结果
     */
    publicstatic String execRootCmd(String cmd) {
        String result = "";
        DataOutputStream dos = null;
        DataInputStream dis = null;
 
        try{
            Process p = Runtime.getRuntime().exec("su");// 经过Root处理的android系统即有su命令
            dos = newDataOutputStream(p.getOutputStream());
            dis = newDataInputStream(p.getInputStream());
 
            L.i(TAG, cmd);
            dos.writeBytes(cmd + "\n");
            dos.flush();
            dos.writeBytes("exit\n");
            dos.flush();
            String line = null;
            while((line = dis.readLine()) != null) {
                L.d("result", line);
                result += line;
            }
            p.waitFor();
        }catch(Exception e) {
            e.printStackTrace();
        }finally{
            if(dos != null) {
                try{
                    dos.close();
                }catch(IOException e) {
                    e.printStackTrace();
                }
            }
            if(dis != null) {
                try{
                    dis.close();
                }catch(IOException e) {
                    e.printStackTrace();
                }
            }
        }
        returnresult;
    }
 
    /**
     * 执行命令但不关注结果输出
     */
    publicstatic int execRootCmdSilent(String cmd) {
        intresult = -1;
        DataOutputStream dos = null;
 
        try{
            Process p = Runtime.getRuntime().exec("su");
            dos = newDataOutputStream(p.getOutputStream());
 
            L.i(TAG, cmd);
            dos.writeBytes(cmd + "\n");
            dos.flush();
            dos.writeBytes("exit\n");
            dos.flush();
            p.waitFor();
            result = p.exitValue();
        }catch(Exception e) {
            e.printStackTrace();
        }finally{
            if(dos != null) {
                try{
                    dos.close();
                }catch(IOException e) {
                    e.printStackTrace();
                }
            }
        }
        returnresult;
    }
 
}

安卓ROOT权限代码


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