Only the original thread that created a view hierarchy can touch its views

情景

HomeActivity试图包含了Fragment，fragment中在okhttp的回调函数中 修改了view的控件，报错Only the original thread that created a view hierarchy can touch its views

解决办法：

方法1、在fragment中创建主线程的实例

调用

            MainActivity.this.runOnUiThread(new Runnable() {
            public void run() {
                ...
            }
        });

方法2、

重写handler

private Handler handler = new Handler(){
        @Override
        public void handleMessage(Message msg) {
            if (msg.what == 1) {
              ...
            }
        }
    };

调用

new Thread(new Runnable() {
                                        @Override
                                        public void run() {
                                            try {
                                                Thread.sleep(1);
                                            } catch (InterruptedException e) {
                                                e.printStackTrace();
                                            }
                                            handler.sendEmptyMessage(1);

                                        }
                                    }).start();

或者直接handler.sendMessage(1)