Android

1. What is ContentProviderThe content provider, a layer of abstraction for all data access, provides a unified interface for data access. It has the following advantages: A. Abstraction of data, providing uniform access to data for all components

Sam has two ways to process resource files in Android development. One is to put all the resource files and JNI programs in a separate resource bundle. When used to them, read by using the file method. or read directly using C + + layer code.

Broadcastreceiver (broadcast receiver) is one of the four major components of Android. The following is a detailed description of the use of the broadcast receiver component. The following is an overview of Broadcastreceiver in Android Doc: The ①

In MMS, eachThreadhas a corresponding contact, butThreadsThe table does not directly save the contact's information (number or name), but instead saves a message calledrecipient_id, there is also a class calledData/recipientidcache.javaspecialize in

There are a lot of applications on the market, with a drop-down list of features, all the options are placed in the Drop-down list, when the user clicks on the selection, pop-up all the options, the user selects an item, the Drop-down list

Objective Some time ago need to use to Recyclerview, just want to find a package of good drop-down refresh, pull the load of the library, the results Leng did not find, they wrote a. Note: I'm talking about "pull up", not sliding to the bottom of

In the current software and hardware environment, Native app and web app have obvious advantages in user experience, but in actual project some will upgrade clients frequently because of frequent changes in the business, resulting in poor user

1. Overview Recently, until in the band interns, because more people, so a long time did not update the blog, today updated a radar scan close friend effect, and then try to update one every week, first look at the effect: 2. Realize　 1, Effect

Now the mobile phone on the suspension window applications more and more, for users, the most common suspension window application is the security software of the suspension of small control, take 360 guards, when the suspension window, it is a ball,

In Android development, we often use the evaluation of businesses or commodities, using stars to grade. However, in the Android system with the scoring control, Ratingbar is particularly difficult to use, spacing and size can not be changed. So,

This example describes the implementation of blacklist in Android programming. Share to everyone for your reference, specific as follows: 1, blacklist database creation Three fields (_id field phone blacklist number mode intercept type) To create

This article illustrates the basic usage of soft keyboards in Android programming. Share to everyone for your reference, specific as follows: Call the following code: (The first call shows, then the call is hidden, so repeated), this refers to the

Dip:device independent pixels (device independent pixel). Different devices have different display effects, this is related to the device hardware, we generally support the WVGA, HVGA and QVGA recommended to use this, do not rely on pixels.px:pixels

Theme theme is used to set the UI style of the interface, you can set the entire application or an activity of the interface style. The following theme are built into the Android SDK and can be categorized by whether the title bar and status bar

Just started into the splash interface: 1.splashactivity.java (two seconds after entering the start interface, splash interface layout Only a picture, after the blog, will show you) public class Splashactivity extends activity

In the application landing page we need to fill in the username and password. When filling in this information, the soft keyboard will block the landing button, which makes the user experience is poor, so today to solve this problem 1: The landing

Android 2.3.7.r1 stops recording when you press the menu key. Change to video when pressing the menu key does not do processing, you can make the following modifications: In Packages/apps/cameraopen/src/com/mediatek/camera/videocamera.java In the

Android how to get mobile phone contact information, this article for everyone to announce. Get Mobile Contact Information step: 1. Get Contentresolver Contentresolver resolver = Getcontentresolver (); 2, resolver.query (*) query information

Prior description:Andoran teeth need to locate the right to apply, in the Android 6.0 users need to manually confirm the right to use, you can query the data to achieve, if it is troublesome, you can use the Third-party Bmob Integrated tool class

Mainactivity is as follows: Copy Code code as follows: Package cn.testjavascript; Import Java.util.StringTokenizer; Import Android.os.Bundle; Import Android.webkit.WebView; Import android.app.Activity; /** * Demo Description: *