Android studio 提示框Toast 弹出框AlertDialog 多种提示方法

1、Toast Handler handler = new Handler(Looper.getMainLooper()); handler.post(new Runnable() { @Override public void run() { //放在UI线程弹Toast Toast.makeText(Setting.this, 正在更新请稍后, Toast.LENGTH_LONG).show(); } }); 2、弹出框 2.1默认样式 android.support.v7.app.AlertDialog.Builder b