android getapplicationcontext

Android performance optimization is mainly divided into two points 1, layout optimization 2, memory optimization Layout optimization First look at the layout optimization, the system in the rendering UI will consume a lot of resources, so, the layout of the optimization is particularly important Avoid overdraw Which is to avoid excessive rendering, excessive rendering will waste more resources, for example, the

The development of Android using the Android-query framework can be fast, much less than the traditional development of Android code to write a lot of, easy to read and other advantages. Download the document and its example and package address: http://code.google.com/p/android-query/ Here are some of the lessons I l

This article is an example of the Android Open-source approach to customizing the Android shutdown interface. Share to everyone for your reference. Specifically as follows: In the Android system, a long press power key by default will eject the dialog box to allow you to choose "Flight Mode", "mute", "shutdown" and other functions. As shown in the following illu

Activity { @Override protected void onCreate(Bundle savedinstancestate) {Super. OnCreate (Savedinstancestate); Setcontentview (R.layout.activity_main); }//Customize a method to pass in a view component as a parameter Public void Myclick(View Source) {Toast.maketext (Getapplicationcontext (),"button is clicked.", Toast.length_short). Show (); } }Main.xml Layout file:linearlayout xmlns:android="Http://schemas.android.com/ap

Android custom RadioGroup layout, androidradiogroup This effect was required in the project some time ago to customize the RadioGroup layout, but the premise is to find RadioButton. I collected various materials and tried various tests. Finally, the custom RadioGroup layout is available. CustomYiRadioGroup layout, which can contain various la S. RadioButton is also in this layout. The recursive search method can be used to find the RadioButton id or a

top three articlesuse of the Android V7 Compatibility Pack Recyclerview (iii)--use of the layout manageruse of the Android V7 Compatibility Pack Recyclerview (ii)use of the Android V7 Compatibility Pack Recyclerview (i)This paper introduces the use of Recyclerview and the flexibility of common related classes and layout managers. Write so many articles, not relat

. getApplicationContext (). getPackageManager (); AppList = pm. getInstalledApplications (PackageManager. GET_UNINSTALLED_PACKAGES ); } Public ApplicationInfo getInfo (String name ){ If (name = null ){ Return null; } For (ApplicationInfo appInfo: appList ){ If (name. equals (appInfo. processName )){ Return appInfo; } } Return null; } } Xml file:Lsit:Copy codeThe Code is as follows: Android: layout_width = "

Fourth, Android build system and custom Android platform system4.1Android compilation systemAndroid's source code is composed of hundreds of thousands of files, these files are interdependent, and some are independent of each other, they are placed in different directories by function or type, for this big project, Android through its own compilation system to co

Download Android Development sdk ndk and android development sdkndk Version 2014.7 ADT BundleHttp://dl.google.com/android/adt/adt-bundle-windows-x86-20140702.zipHttp://dl.google.com/android/adt/adt-bundle-windows-x86_64-20140702.zipHttp://dl.google.com/android/adt/adt-bundle

Tell me what I'm trying to do before I finish this example. First, modify the "Actionbarsherlock" navigation example. Before I implemented this example, I tried "actionbarsherlock" to modify one of its tab navigation examples, and the modification was successful. But finally found that it is not a actionbar implementation of the tab, can not hide Actionbar, when the Actionbar hide method is invoked, Actionbar is hidden, but the title of the tab page still exists, And in the lower version of