android studio widget tutorial

Android Studio development basics-Context usage instructions 1. Context description Context is an interface used to access global information, such as application resources (slice, String, etc.). Some common components inherit from Context, such as Activity and Service. For example, you can use Java code to create a textView. The first setText () method of textView is used to directly input a string, and th

I am I/o this year, Google released a preview of Android Studio 2.2, revealed that improved a number of features, but in order to ensure that the company's projects are not affected, I generally do not install the preview version, because the preview is meant to be unstable, may encounter a variety of unexpected pits, yesterday, Google finally released the official version of

actually not add. 2. Create a first unit testNow, everything is ready, so let's start writing the first Test. First, create a very simple class to be tested: the Calculator class.Then, add some basic arithmetic operations to the class, such as addition and subtraction. Copy the following code into the editor. Do not worry about the actual implementation, temporarily let all the methods return 0.Calculator.javaPackage com.example.testing.testingexample; Public classCalculator {Pub

, otherwise, choose Standard. This tutorial assumes that we have installed the SDK and selected custom. Ok, now you can use, detailed use of the tutorial posts:Http://06peng.com/archives/36Second, Google provides theHttp://developer.android.com/sdk/installing/studio.htmlThird, solve Gradle project sync failed1. Go to C:\Users\ 's own username \.gradle\wrapper\dists\gradle-1.12-all\2apkk7d25miauqf1pdjp1bm0uo

You're not using Android Studio + Gradle yet? That is a bit too outdated, the following own original summary of the Android Studio series of tutorials, illustrated very detailed, even if you are small white can understand.Android Studio Series

ObjectiveRecently read this article, "Android UI performance Optimization", which uses the hierarchy viewer to optimize the layout. The development of Android so long, has been heard this tool, but never really go to use, have to say is a failure. Now just take advantage of the idle, study the use of Hierarchy Viewer.Start Android Device MonitorOnline search for

Android Studio 2.2.2 import the project created in Eclipse, androideclipse Recently, I used the video tutorial to learn about Android. I used Adt to write Android programs. I replaced the tutorial with

the declaration of a field, when the breakpoint icon changes, such as:Right-click this breakpoint we can make some settings, such as the default is modified by the time of the break down, you can also change every time you access this field to break down. Another way is to Run the View breakpoint open setting, similar to an exception breakpoint.Follow-up: Due to my limited ability, can only be summed up here, in fact, the function of debugging has a lot to summarize, will be in the later time t

software, uninstall after reinstallation.Visualgdb Debugging Android1. install visualgdb, crack version 2 Installing Visualgdb-4.2r4-trial.msi 2 Crack the VisualGDB.exe under the installation directory, the installation path defaults to C:\\Program Files\\sysprogs\\visualgdb 2. Download and install VISUALGDB, after the installation is complete, you can see the Android option in the catalog in Visual Studio