安卓獲取線程id

錯誤的做法：

    @Override
    public void onCreate() {
        mContext = getApplicationContext();
        mHandler = new Handler();
        mMainThreadid = android.os.Process.myPid(); 6         super.onCreate();
    }

正確的做法：

    @Override
    public void onCreate() {
        mContext = getApplicationContext();
        mHandler = new Handler();
        mMainThreadid = android.os.Process.myTid(); 6         super.onCreate();
    }