摘要： 这些参数我们可以在 Minifest.XML当中找到 阅读全文

摘要： 在非主线程中调用了showMessage方法，结果报错：Can't create handler inside thread that has not called Looper.prepare() private void showMessage(String msg) { Toast toast = Toast.makeText(getApplicatio... 阅读全文