Android 打开文件或文件夹777权限

打开777权限

public class SystemManager extends Activity {

    public static boolean RootCommand(String command){

        Process process = null;
        DataOutputStream os = null;

        try{
       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){
           return false;
         } finally{
          if (os != null){
            try {
                  os.close();
                }catch (IOException e){
                  e.printStackTrace();
                }
            }
            if(process!=null) {
                  process.destroy();
            }
         }
            return true;
    }
}

String apkRoot="chmod 777 "+getPackageCodePath();
SystemManager.RootCommand(apkRoot);

 常用adb命令

//打开文件夹
adb shell cd  path1

//打开文件
adb shell cat path1

//重命名文件
adb shell rename path1 path2 

//删除文件或文件夹
adb shell rm path1

//移动文件
adb shell mv path1 path2

//拷贝文件
adb shell cp path1

//创建目录
adb shell mkdir path1

//将system分区重新挂在为可读写分区
adb remount

//启动adb服务
adb start-server

//终止adb服务
adb kill-server

//查看连接的设备
adb devices 

//查看设备分辨率
adb shell wm size

//查看所有包名和apk名字
adb shell pm list packages -f

//安装apk -r覆盖安装 -s安装到SD卡
adb install path1+test.apk -r

//卸载apk
adb uninstall 包名