以 可讀寫的方式載入/data分割槽
mount -o rw,remount /data

應用上使用

public static void setPerssion(){
    exusecmd("mount -o rw,remount /data");
    exusecmd("chmod 777 /data/data/shensi");
}
public static boolean exusecmd(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 {
        try {
            if (os != null) {
                os.close();
            }
            if
 
 (process != null) {
                process.destroy();
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
    return true;
}