toast | 易学教程

Android基础控件CheckBox的使用

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CheckBox有两种状态，勾选和未勾选，是一个很简单的控件。可以通过实现OnCheckedChangeListener接口来监听CheckBox；如果想更改它的图标的话只需更改它的Button属性即可实现。下面是示例代码。 check_box_selector.xml <?xml version="1.0" encoding="utf-8"?> <selector xmlns:android="http://schemas.android.com/apk/res/android">  <item android:state_checked="true" android:drawable="@drawable/check_choose"/>  <item android:drawable="@drawable/check_unchoose"/> </selector> check_box_activity.xml <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto"

如何在android studio中cordova的混合开发

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基于Android Studio 中Cordova的开发 cordova简介 Cordova的前身是PhoneGap 官网： (http://cordova.io) Cordova应是运行在客户端本地应用容器的web应用。因此，运行在Cordova容器中的Html5应用的结构和传统的基于web服务器的有所不同。传统的web应用中服务器端做了大部分工作，比如按照用户请求传回生成的内容。而Cordova这种容器中的应用本身包括了所需要的静态页面，用户请求一般由js代码响应并与服务器交互，这样与服务器交互的内容会比较少。并且由于html5本身的特性（如本地存储）或容器的API，容器的应用可以脱离服务器运行。 cordova安装先安装JDK 下载地址：（http://www.oracle.com/technetwork/java/javase/downloads/index.html）安装SDK 下载地址：（http://developer.android.com/sdk/index.html） CLI（command-line interface，命令行界面）的安装 CLI是用JavaScript写的，并且是用Node.js作为运行时执行引擎。所以需要先安装Node.js（http://nodejs.org/download/），在安装过程中，CLI要获取一些GitHub的代码

Custom toast on Android: a simple example

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I'm new to Android programming. What is a simple example showing a custom toast notification on Android? Dipak Keshariya Use the below code of a custom Toast. It may help you. toast.xml <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/toast_layout_root" android:orientation="horizontal" android:layout_width="fill_parent" android:layout_height="fill_parent" android:padding="10dp" android:background="#DAAA" > <ImageView android:id="@+id/image" android:layout_width="wrap_content" android:layout_height="fill_parent" android:layout_marginRight="10dp" />

Stop all toast messages when going to another screen in Android

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问题 I am displaying a simple Toast when I click a button. My issue is, when I click on a button multiple times, that Toast message keeps displaying until I get to the main screen. I would like to stop the Toast when I get to the main screen and kill the Toast message in the corresponding activity. I have attached a screenshot. I have written code as follows: public class Main extends Activity { Dialog d; Toast t; /** Called when the activity is first created. */ @Override public void onCreate

Button in custom Android Toast?

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问题 Is it possible to have a button in a Toast? In theory, yes because you can build a custom Toast from a layout in XML, but I tried to put a button in it and couldn\'t get it to register the click. Did anyone manage to do something like that? 回答1: A toast can not be clicked. It is not possible to capture a click inside a toast message. You will need to build a dialog for that. Look at Creating Dialogs for more info. The API on the Toast class state that a toast will never receive the focus and

Call to getLayoutInflater() in places not in activity

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问题 What does need to be imported or how can I call the Layout inflater in places other than activity? public static void method(Context context){ //this doesn\'t work the getLayoutInflater method could not be found LayoutInflater inflater = getLayoutInflater(); // this also doesn\'t work LayoutInflater inflater = context.getLayoutInflater(); } I am able to call getLayoutInflater only in activity, is that an restriction? What if I want to create custom dialog and I want to inflate view for it, or

Displaying integer on toast

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问题 Im trying to display a toast message with integer inside it This is how i tried to do it: Toast.makeText(this,bignum,Toast.LENGTH_LONG).show(); But it keeps crash my app. Thanks for help! 回答1: Toast.makeText either takes a CharSequence or an int as its second argument. However, the int represents a resource ID (such as R.string.hello_world ). The application crashes probably because no resource is found with that ID, since it's not an ID to start with, but an arbitrary integer. In your case,

How to raise a toast in AsyncTask, I am prompted to used the Looper

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问题 I have tasks completed by AsyncTask in background. At some point I need to issue a Toast that something is completed. I\'ve tried and I failed because Caused by: java.lang.RuntimeException: Can\'t create handler inside thread that has not called Looper.prepare() How can I do that? 回答1: onPostExecute - executes on UI thread or publishProgress() ; in your doinbackground and protected void onProgressUpdate(Integer... progress) { } http://developer.android.com/reference/android/os/AsyncTask.html

How to prevent Multiple Toast Overlaps

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问题 I\'ve been using a common \"myToast\" which I use \" myToast.cancel() prior to issuing a new toast. For Android v2.3 and older, this works great. When a new toast needs to be sent, the old one, if still on-screen, is canceled (and disappears immediately) to be replaced with the new toast. This avoids stacking up a bunch of toasts if the user presses a key multiple times that needs the alert (and other conditions). My actual case is one toast appears when a wrong key is pressed, and another

js 注册界面获取手机验证码

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首先，给大家介绍下注册界面以及获取手机验证码的一些原理和规则逻辑，方便大家在今后更好的使用此功能，分别注意以下几点：（代码写的怎么样看看就知道，不含糊）； 1，界面div这个必不可少的；（输入账户、输入密码、验证码获取、点击注册按钮） <div class="mui-input-row"> <label>账号</label> <input type="text" id="zhvalue" value="" class="" placeholder="请输入手机号"> <input type="button" id="btninfo" value="获取验证码" /> </div> <div class="mui-input-row"> <label>验证码</label> <input type="text" id="yzinfo" class="mui-input-clear" placeholder="请输入验证码"> </div> <div class="mui-input-row"> <label>登录密码</label> <input type="password" id="dlinfo" value="123456" class=" mui-input-password" placeholder="密码(6-16位英文，数字)"> </div> </div>