Android获取ROOT权限的实例代码

// 获取ROOT权限
public void get_root(){

    if (is_root()){
        Toast.makeText(mCtx, "已经具有ROOT权限!", Toast.LENGTH_LONG).show();
    }
    else{
        try{
            progress_dialog = ProgressDialog.show(mCtx,
                    "ROOT", "正在获取ROOT权限...", true, false);
            Runtime.getRuntime().exec("su");
        }
        catch (Exception e){
            Toast.makeText(mCtx, "获取ROOT权限时出错!", Toast.LENGTH_LONG).show();
        }
    }

}

// 判断是否具有ROOT权限
public static boolean is_root(){

    boolean res = false;

    try{
        if ((!new File("/system/bin/su").exists()) &&
            (!new File("/system/xbin/su").exists())){
        res = false;
    }
    else {
        res = true;
    };
    }
    catch (Exception e) { 

    }
    return res;