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Application of small pendant (also known as a small window pendant) in the android1.5 is the first time, later, android3.0 and android3.1 have been greatly developed, they can show some of the application of common information or some relevant information to the desktop, the standard Android mirror image has many of its own Small pendants, such as: Alarm clock, music, etc.
Figure 1. Example app widgets i
Http://www.cnblogs.com/TerryBlog/archive/2010/07/29/1788319.html
I was planning to continue the API demos series in the evening, but this afternoon I was bored with playing a desktop component app widget. I am very interested in it, I encountered a lot of problems and had been solving the problem until PM. I can only blame myself for not understanding deeply, but I finally solved the problem. I can write some insights and give them an explanation. The outline of this article is as follows:
1
The outline of this article is as follows:
1. AppWidget framework class
2. How to Use widgets in Android
3. Main Types of AppWidget framework
4. DEMO
1. AppWidget framework class
1. AppWidgetProvider: inherits from BroadcastRecevier and receives notifications when AppWidget applies update, enable, disable, and delete. OnUpdate and onReceive are the most common methods. They receive update notifications.
2.
For more information about the previous configurations such as mainfest. XML, XML/widget, Res/layout/my_widget, see the API documentation.
I. Configure widgets.
You need to pay attention to the following points for setting the pluate of widgets:
Intent intent = new intent ();
1. send the current intent through sendbroadcast. The action must be appwidgetmanager. action_appwidget_update; in this way, the
Objective
This is the main implementation of an Android application, static broadcast, dynamic broadcast two ways to change the content of the widget, that is, in the blog on the basis of the experiment to modify, so the focus of this experiment is the realization of appwidget small parts ~
First, let's simply say what the widget is.
The application window widget (widget) is a tiny application view that can be embedded in other applications (such a
For more information about appwidgetprovider, see the official documentation.
Recently, due to a problem, we used
The update cycle in Android: updateperiodmillis does not work. First, there are several reasons, which mean that the Android version is problematic. The other one is that it can only be updated once every 30 minutes on the Internet. Otherwise, the service will be used for updates. The following
is deleted. @Override Public voidondisabled (Context context) {//Enter relevant functionality for if the last widget is disabled } //This method is called when the app Widgt is deleted. @Override Public voidOndeleted (Context context,int[] appwidgetids) { Super. ondeleted (context, appwidgetids); } //Accept broadcast events. @Override Public voidOnReceive (Context context, Intent Intent) {Super. OnReceive (context, intent); } Static voidUpdateappwidget (context context, Appwi
A desktop part is a part of an application that is placed on the desktop using the Appwidget framework.Res/layout/digitalclock.xmlXML code
XML version= "1.0" encoding="Utf-8"?>
TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/time"
android:textsize="45px"
android:textstyle="bold"
android:textcolor="#FFFFFFFF"
android:background="@drawable/bg"
android:layout_width="wrap_content"
andro
1.Widget, App Widget, Web app concept
The original concept of the widget was presented by an Apple engineer named Rose in 98 and was not officially known until 2003, but then numerous large companies began to accept and apply the idea. Now we see the gadget in the Apple system that presses the F4 pop-up Dashboard widget, and the nifty gadgets on the Windows 7 sidebar are called Gadget (widget variants), in addition to the Yahoo widget and other widget products. They have a common feature is the
Android custom calendar and android custom calendar
Recently, Android is used in the project to implement the Calendar function. I found a lot of demos that I didn't want. Finally, I found an open-source project on githu to imple
Android-misc-widgets four-direction (up/down) drawer bug fix2013-08-04 08:58:13Tags: bug down top panel slidingdrawer original works, allow reprint, please be sure to use hyperlinks in the form of the original source of the article, author information and this statement. Otherwise, the legal liability will be investigated. http://mikewang.blog.51cto.com/3826268/1263802As compared to open source projects, th
pendingintent = pendingintent.getactivity (context, 0, Intent,0); Remoteviews remoteviews=Newremoteviews (Context.getpackagename (), r.layout.example_appwidget); //binds the event handler to the button,//The first parameter is used to specify the ID of the bound processor control; //The second parameter is used to specify which pendingintent will be specified when the event occurs.remoteviews.setonclickpendingintent (R.id.widgetbuttonid, pendingintent); //Update AppwidgetAppwidgetmanager.update
Android preset application icons, shortcut icons, or widgets on the desktopModify the res/xml/default_workspace.xml file and add the following code:
Launcher: packageName = "" // complete package name
Launcher: className = "" // complete package name. Class Name (class for processing main intent)
Launcher: screen = "" // screen where the app icon is located (starting from 0)
Launcher: x = "" // c
1. Introduction to favorites on the desktop
The launcher desktop has four elements in the middle, which are the window widgets of a clock. The following lines are respectively a camera, an Amazon bookmarks, and a folder (the folder contains settings and clock ).
In the code, they are all favorites: appwidget, application, shortcut, and folder.2. view the database
Favorites is stored in the database.
Export the database file data/COM.
Android Study Notes (27): Calendar view Calendar Analysis
The calendar view CalendarView can be used to display and select a date.
You can call setOnDateChangedListener () to bind the event listener.
Common XML attributes and related methods:
XML attributes
Related Methods
Description
, the date and time can also be correctly processed.
2. Obtain the time of year, month, hour, minute, and second of the current Android system in Android development.
For Android files, we recommend that you use Time instead of Calendar. The CPU load with Time is small. This is especially important when writing
BKJIA: Android phones generally have built-in Calendar applications. Third-party applications can use the calendar content provider interface to read user calendar information and arrange new events in the calendar. This calendar
One Android high-performance calendar control, high imitation meizu, and high imitation android
Android's native CalendarView cannot meet our daily development needs. During the process of developing the my note APP, I think we need a high-performance and concise calendar control, I think meizu's
Hello everyone, I haven't updated my blog for a long time. Today I want to share with you some calendar operations in Android. Here I mainly use contentproiver. if you do not understand the contentprovider, we recommend that you first check the information and know what it is. This makes the following example easier.
Well, let's not talk about it. Here's a wake-up, cale
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