= context;This.resinfo = Resinfo;}@Overridepublic int GetCount () {TODO auto-generated Method Stubreturn Resinfo.size ();}@OverridePublic Object getItem (int position) {TODO auto-generated Method Stubreturn Resinfo.get (position);}@Overridepublic long getitemid (int position) {TODO auto-generated Method Stubreturn position;}The purpose of this place with Viewholder is to improve the app's speed by not having to reconstruct our convertview and find ImageView and textview every time.@OverridePubl
This article describes the development process for Android boot auto-start application.1: Add self-launch permissionsAdd Permissions in Androidmanifest.xmlandroid:name= "Android.permission.RECEIVE_BOOT_COMPLETED"/>2: Add self-initiated receive, decide which broadcastreceiver to use as the application entranceAdd a portal to Androidmanifest.xmlreceiverAndroid:name= "Com.zpd.scanadapter.BootUp" >Intent-filter> ActionAndroid:name= "Android.intent.action.BOOT_COMPLETED" /> categoryAndroid:name
The previous section has implemented a simple app widget. Here we will continue to learn more about app widgets through an instance.
First, continue to understand the main classes of the app widget framework:
Appwidgetprovider: inherits from broadcastreceiver and receives no
Android Widget Development case implementation is introduced in this article, mainly to understand and learn about the development of Android widgets, today we want to write about the development of Android widget, as soon as the early morning, I will not say too specific, comrades to imitate it!
First, keep abreast of the main classes of the app
Create app widget Layout
You must define an initial layout for your app widget in the XML file and save it in the Res/layout directory of the project. You can use the view objects listed below to design your app widgets, but read and understand the appwidget design guide bef
direction on the screenlauncher:spany= "1"//number of squares in Y-direction on the screen/>1, can not be preset with configuration of the appwidget.2, Google from KK began to limit the system permissions, for the access to systems have strict specifications. Launcher3 the system Bind_appwidget permission is not available by default, so the appwidget cannot be provisioned.If you want to provision appwidget, you need Launcher3 to get system permissions, so to modify Launcher3 android.mk, add loc
1. appwidgetproviderinfo object:
Provides metadata (meta-data) for app widgets, including layout and update frequency. This object is defined in the Res/XML directory.
Xmlns: Android = "http://schemas.android.com/apk/res/android"
Android: minwidth = "294dp"
Android: minheight = "72dp"
Android: updateperiodmillis = "86400000" // This is the update interval.
Android: initiallayout = "@ layout/example_appwidget" // This is the layout of
The Desktop component app widget is a practical function of Android. Although the development process is not very difficult, there are many steps and a little trouble. The following key steps are summarized to facilitate future use. The project is packaged to facilitate future use. Create an android project and follow the steps below to create a simple app
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