关于子线程使用Toast报错Can't create handler inside thread that has not called Looper.prepare()的解决办法

形同如下代码，在Thread中调用Toast显示错误信息：

new Thread(new Runnable(){ @Override public void run() { try{ weatherData = getWeatherData(strUrl); parseJson(weatherData); }catch(Exception e){ Toast.makeText(WindowApplication.getAppContext(), e.toString(), Toast.LENGTH_SHORT).show(); Log.i("wytings",e.toString()); } } }).start();

一运行，就会报错Can't create handler inside thread that has not called Looper.prepare()，因为Toast的初始化函数中，自己开了个线程new Handler();所以使得当前的Toast要是不在主线程就会报错。

解决办法如下，在Toast上下添加Looper.prepare();和Looper.loop();

Looper.prepare();
Toast.makeText(WindowApplication.getAppContext(), e.toString(), Toast.LENGTH_SHORT).show();
Looper.loop();