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Reprint Please specify source: http://blog.csdn.net/guolin_blog/article/details/53122387Today to bring you 2017 years of the first article, here first wish you all good New year.The topic of this article is constraintlayout. In fact, Constraintlayout is one of the main new features in Android Studio 2.2 and a feature that Google focused on last year's I/O confere
Use Kotlin to develop Android applications (II): Create a new project, kotlinandroid
This is the second article about Kotlin. If you discover any problems, please continue to "shoot bricks ".
Original article title: Kotlin for Android (II): Create a new project
Link: http://antonioleiva.com/kotlin-
The topic of this article is constraintlayout. In fact, Constraintlayout is one of the main new features in Android Studio 2.2 and a feature that Google focused on last year's I/O conference. As we all know, in the traditional Android development, the interface is basically done by writing XML code, although Android st
Android 5.0 new feature learning summary pull-down refresh (1), android5.0After android 5.0, google added a pull-down refresh control under the support v4 package.Project address: https://github.com/stormzhang/SwipeRefreshLayoutDemoXml: Android: id = "@ + id/swipe_container"Android
TabLayout, a new android M control, allows you to conveniently and quickly implement the tab function.1. Overview
TabLayout is one of the new components of the new Android Support Design Library released by google at the google conference in 2015 to fully Support Material De
At the end of this chapter has been released application demo, has implemented all the text and subsequent articles described in all the functions, we can first download down to play, welcome to comment below this article, the small side is very need to encourage support!!!The ultimate effect of novel reader see the previous post on a blog postCreate a new projectWe are about to embark on an Android develop
Today's learning task: Read the main information (name and phone number) of all contacts on the mobile phone, and display it in listview
Main Content involved: 1) structure and usage of the contact API 2) role of the contentprovider component, Uri concept and usage 3) create a listview and bind data
1. Structure and usage of the contact API
Since Android 2.0 (API Level 5), the Android platform has
The example in this article describes how Android creates a new activity. Share to everyone for your reference, specific as follows:
How do you create a new activity in an Android project? The method is as follows:
One, create a new Class (*.class), inherit from Android.ap
Use of FloatingActionButton, TextInputLayout, Snackbar, and TabLayout for new Android M controls
Recently, at Google's 2015 I/O conference, the new Android version M was released. It seems that Android has not been named as a digital version since this version.
At this I/O
When the android new project is declared as "progurad. xml" does not have an error, you can create a proguard. cfg file in the/Android-SDK-Windows/tools/lib/directory. The file content is as follows:
-Optimizationpasses 5-Dontusemixedcaseclassnames-Dontskipnonpubliclibraryclasses-Dontpreverify-Verbose-Optimizations! Code/simplification/arithmetic ,! Field /*,!
, but does not contain the CPU time that is consumed by internal calls to other functions.How do we judge a possible problem?
The method is usually judged by the number of calls and exclusive times of the methods:If the number of method calls is not many, but each call will take a long time of the function, there may be problems. A function that is called very frequently can be problematic if it takes a long time. Review
Here are some of the tools used by
After Eclipse updates the Android SDK, there are a variety of issues with new projects. Online all kinds of solutions, have a long time, summed up a bit.1. Appears error:error retrieving parent for item:no Resource found that matches the given name ' Android:Widget.Material.Action Button 'After you create a new project. Appears error:error retrieving parent for i
Document directory
Gridlayout
Getting started
Sizes, margins and alignment/gravity
Flexibility
Emulating features from other layouts
The phases of the layout operation
Conclusion
10 November 2011
Http://android-developers.blogspot.com/2011/11/new-layout-widgets-space-and-gridlayout.html
New layout widgets: space and gridlayout
[This post is by Philip Mil
The new system retains the original jelly Bean name, the overall user experience is not much change, but some new features are worthy of attention.
Google now update
In the new Google Now, it can index your emails about air tickets, meals, hotels, parcels, tickets, etc., and remind you at the right time. But these features require user authorization, and if you
The joint press conference between Google and Samsung has ended. The third mobile phone, Galaxy Nexus, was officially launched with the latest ice cream sandwich system. Android has begun to enter the latest 4.0 era, what are the new features of the new version system? Let's leave Samsung's new mobile phone alone to ta
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