toast | 易学教程

How can I show a toast for a specific duration?

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问题 This is the way I have to show the Toast for 500 milliseconds. Though, it's showing more than a second. Toast.makeText(LiveChat.this, "Typing", 500).show(); How can I show Toast only for 500 milliseconds? 回答1: This cannot be done. To show a toast for a length shorter than Toast.LENGTH_SHORT , you must cancel it after the time you want. Something like: final Toast toast = Toast.makeText(getApplicationContext(), "This message will disappear in half a second", Toast.LENGTH_SHORT); toast.show();

Hiding of the Toast for long press on actionBar item

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问题 Is some possible way how to hide the toast after long-press on the ActionBar item? I didn't setup a title for the item but it is still there - empty toast. <item android:id="@+id/ab_main_menu_dots" android:icon="@drawable/action_icons_dots" android:showAsAction="always"> <menu> <item android:id="@+id/ab_main_menu_my_profile" android:showAsAction="never" android:title="@string/ab_my_profile"> </item> <item android:id="@+id/ab_main_menu_settings" android:showAsAction="never" android:title="

Set Toast Appear Length

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问题 Is there anyway I can tell a Toast Notification to show up only for a specified amount of time. Generally shorter then a regular toast message. 回答1: I found a solution to this by calling toast.cancel() after a certain delay that is shorter than the standard toast duration. final Toast toast = Toast.makeText(ctx, "This message will disappear in 1 second", Toast.LENGTH_SHORT); toast.show(); Handler handler = new Handler(); handler.postDelayed(new Runnable() { @Override public void run() { toast

一起学Windows Phone 7开发(十二.Push Notification)

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一．简介 Push Notification 是 windows phone 7 中的特色功能之一，这个功能可以变相的让普通开发者实现多任务（尽管并不是真正的多任务）。它为手机端应用和 webservice 之间建立了一条专用的、持久的、稳定的通道来推送通知。当通道建立后，手机端应用可以接收 webservice 的任何信息。二．分类对于 Push Notification 主要有三种： 1. Tile Notification: 是可以改变 Quick Lanuch area 内的图标内容（图片，文字等）的方式。不过这个需要把程序 pin to start, 才可以使用。 2. Toast Notification: 是在屏幕上面可以显示一个提示栏的方式。当点击提示栏可以打开应用程序。 3. Raw Notification: 是直接使用 Http 方式来接收（ http polling ）通知的方式。并且是不可见的，以后台方式传送通知。对于以上几种通知，都需要一个服务端以 push notification 方式来发送通知，也就是说要使用 push notification 都需要一个服务端。三．创建服务器端对于服务器端来说，发送不同的通知，都是以 Http 方式发出去的，但是在发送时，需要配置相应的参数，来告诉 Push Notification

Finish activity after toast message disappears?

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问题 Does anybody know, if there is a possibility to do something (in my case finish activity) on toast message will be closed? 回答1: You do that simply by creating a Thread that lasts as long as the Toast is displayed and then you can finish your Activity . public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); // your other stuff Toast.makeText(this,"This is a Toast", Toast.LENGTH_LONG).show(); thread.start(); } Now create a thread

Show toast widget underneath a view

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问题 For those who helped me out earlier regarding this project, thank you very much! My code no longer has any problems, and I made extra tweaks. Now that the app is actually robust now, I want to do one more thing. See screenshot of the layout here. Normally, the toast view appears at the bottom center of the screen. I want to make it appear just below (8dp) the Submit button once OnClick is called. How can I accomplish this. See my updated complete project here. package com.lookjohn.guessnumber

Show toast widget underneath a view

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作业9

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<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" tools:context="com.example.myapplication.MainActivity"> <LinearLayout android:id="@+id/linearlayout1" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginTop="140dp" android:orientation="horizontal"> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="姓名：" android:textSize="55px

PostgreSQL中的Toast Point

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1、分析背景　　在使用数据库的过程中（PG的版本为9.2），遇到了错误"missing chunk number 0 for toast value XX in pg_toast_2619"。根据错误描述，猜测原因可能是：主表字段还留存着Toast Pointer，但Toast表中已经没有对应的Chunk条目。证明这个猜测的关键，是根据主表字段的Toast Pointer，去找Toast Pointer所指向的Chunk条目是否存在。自然，读懂（解析）Toast Pointer就是分析的第一步，但我查阅了大量资料后却没有找到直接解析Toast Pointer的方法，只好自己尝试去分析。本文就是要探索Toast Pointer解析的方法，并对Toast Pointer的结构进行说明。　　在分析之前，先说明主表与Toast表的组织关系，如下图： 2、分析方法分析思想：通过对数据内容的分析，反向推演数据的结构。分析方法：制造数据得到一个真实的Toast Pointer，通过对Toast Pointer二进制表达的分析，确定Toast Pointer由哪几部分组成以及各部分的含义，并加以证明。 3、分析过程基于上述分析方法，分析过程如下： 1）安装pageinspect扩展借助该扩展，可查看page中各结构体的数值，以及tuple（行）的Raw值（得到Toast

display Android Toast success/unsuccessful message

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问题 my app below copies a file from the raw folder to the allocated location written in the code, What i want to do is display a toast message stating whether the file has been successfully written or whether it has failed. What code is needed and where would i place it within my existing code cheers guy's. public class TrialActivity extends Activity { private ProgressDialog progressDialog; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState)