Android

In our last note, we wrote our own provider, this note, we will access the data via the content provider URI interface and rewrite the example in the Android learning Note (42). Here we are not fully describing how the relevant UI is written and can

Android automatically generates a R.java file in development, which is automatically generated and is best not to be changed. But sometimes, this Java file will play Hide-and-seek with us, the r.xx.xxx in the program will appear error. 1. right

The activity is the Tangram of Android, because if you compare all of Android's interfaces to a picture that uses tangram, then each activity is equivalent to a tangram. This tangram has nothing to do with the application of his package. Any

Android refers to the SQLite relational library, which requires ADB tools, as follows the ADB environment variable configuration 1. Find the tools and Platform-tools under the File SDK and copy the path 2. Open environment variable

A. The simple use of the Android unit test MockitoThree. Android unit test Powermock assign values to private variablesFour. Android unit test Powermock mock static method In contrast to the previous article, this article introduces more Mockito

Problems encountered in the project, involving the main thread and child threads of communication and synchronization issues, the test found deadlock situation, record void Main () {     threadb threadb = new threadb ();      threadb. Start ();   

First create a AVD, the general default path is in C:\Documents and SETTINGS\ADMINISTRATOR\.ANDROID\AVD, of course, this is under Windows. Open the name of the AVD folder you created to see if there are any files shown in the following image:. Lock

the use of implicit intent Write about the use of explicit intent in the previous article, this time, write about the use of implicit intent. So what is implicit intent. Definition: Implicit intent is a intent that does not have an explicit target

QVGA (240x320) HVGA (320x480) WQVGA400 (240x400) WQVGA432 (240x432) WVGA800 (480x800) WVGA854 (480x854) The most common is the use of XML matching, mainly for the layout of the control too much, inconvenient in the Java code to modify the

Problem phenomenon: Create a new Andriod project, then run as, and the following interface appears: [2014-02-13 16:36:54-Flashlight]------------------------------ [2014-02-13 16:36:54-Flashlight] Android launch! [2014-02-13 16:36:54-Flashlight] The

Keywords in kotlin that are consistent with Java usage include: override, while declarations · Open in Kotlin a class needs to be inherited by another class, you need to use the Open keyword Open Class Openclass {} · is judgment type Fun testis

I understand it myself. A thread pool is the meaning of a container, and it should be noted that each thread requires a CPU to allocate resources to execute. If you start a thread by always using new thread (), you will consume a lot of CPU

General native and framework communication is through JNI, but this is generally just a framework call native,native if there is a message to notify the upper level. The Android GSP module provides a solution, but the implementation is somewhat

Original Android NDK installation Full record 1. http://www.cygwin.com/Download the latest version of the Setup.exe tool, select the nearest server, I selected is 163 of the mirror site, download all packages, to the local not installed, and then

Android Architecture Chapter Mvp+rxjava+retrofit+eventbus The high-level should not know the low-level details, should be oriented to abstract programming. The implementation of the business is entrusted to the class of the implemented interface.

Android HttpClient Settings timeout 3.X is like this. HttpClient httpclient=new defaulthttpclient ();4.3 Is this.Closeablehttpclient httpclient = Httpclients.createdefault ();Of course, the above changes are just a few small changes, everyone look

Yesterday I had a hard time worrying about my day's problem. Today I finally got a little eye-catching. It seems that it is necessary to take a rest in this line... Today, it seems that many errors of this type have been made .. In the past few

Imageswitcher is a widget in Android that controls the image display effect, such as the slide effect. Album Creation I. Important Methods Setimageuri: sets the image address. Setimageresource (intResid): sets the image repository. Setimagedrawable (

When Android calls WebService, it often needs to process the JSON format. Currently, there are two methods: To process: 1 use jsonobject and jsontokener for parsing2. Use the gson Library First, let's look at the first method, for example, the

1. How many menus are available in Android? The onoptionitemselect () method is used to click the menu option corresponding to the optionmenu. The method for clicking the menu option corresponding to the context menu contextmenu is