Android Html.fromHtml 耗时太长

Question

如果 tv.setText(Html.fromHtml(text)); 耗时太长，导致 UI 挂起，我该怎么办？ 如果我可以用一个线程来做，你能提供一个例子吗？

Answer 1

private Handler mHandler = new Handler() {
     void handleMessage(Message msg) {
          switch(msg.what) {
               case UPDATE_TEXT_VIEW:
                    tv.setText(msg.obj); // set text with Message data
                    break;
          }
     }
}

Thread t = new Thread(new Runnable() {
     // use handler to send message to run on UI thread.
     mHandler.sendMessage(mHandler.obtainMessage(UPDATE_TEXT_VIEW, Html.fromHtml(text));
});
t.start();