Android

Overview of the directory structure of the HelloWorld program we can see in the folder, the directory of the HelloWorld program mainly includes: Src folder, gen folder, Android folder, assets, res folder, Androidmanifest.xml, Default.properties.

A summary of how Android implements screen rotation This article mainly introduces the Android screen rotation method, the example summarizes the screen rotation related skills, with a certain reference value, the need for friends can refer to the

The Android Studio 1.0 Official Edition is finally released! Google says Android Studio 1.0 makes developers "faster and more productive" and thinks it can replace Eclipse and provide migration steps for Eclipse users. Code automatic prompts,

Take a look at what the Android phone's electricity consumption is mostly: It is obvious that most of the electricity is consumed by network connections, GPS, sensors. Simply put, the power consumption is mostly in the following

Android Mobile Sogou Input Method handwriting input How to set? Sogou Input method is widely loved by a popular input method, usually play the mobile phone when the habit of playing pinyin, strokes, encountered the words can not come out, the use of

Login page to enter the user name and password, login successful to jump to the main page, failure to display error messages. When passing the parameter, use the Basicnamevaluepair list to httppost.setentity the way, cannot use Httpparams.

1, the picture into a thumbnail and then load: The code is as follows1 bitmapfactory.options Options = new Bitmapfactory.options ();2 options.insamplesize = 2;3 Bitmap img = bitmapfactory.decodefile ("/sdcard/1.png", options); This code is read

1, Dalvik heap and Stack This is just dalvik the Java part of the memory, in fact, in addition to the Dalvik part, there are native. I'll talk about it later. The following is a description of the data types listed above, and we can

Package Androidapi; Import Android.util.Log; Class monitoring implements Runnable { public void Run () { while (! Thread.CurrentThread (). isinterrupted ()) { Try { Thread.Sleep (100); catch (Interruptedexception s) {

 /** * Add a file in the Res/drawable folder that sets the trigger state of the picture, and you can set the state_pressed,state_checked,state_pressed, * State_selected,state_focused,state_enabled Status: * * android:state_pressed * If true,

Android file operations should have permission: Determine if the SD card is plugged in Environment.getexternalstoragestate (). Equals ( Android.os.Environment.MEDIA_MOUNTED); Get SD Card root directory File skroot =

in the in Android, we have three ways to play Video: 1, with its own player. Specifies that the action is action_view,data to Uri,type for its MIME type. 2, use Videoview to play. Use Videoview in the layout file to control it with Mediacontroller.  

First, applicable to ICS (Android V4.0) before the version: 1. Install the default input method (. apk) required to System/app 2. Modify File Frameworks/base/packages/settingsprovider/res/values/defaults.xml 　　 Default Input Method ID

Activitymanager Activitymanager = (activitymanager) context.getsystemservice (ACTIVITY_ SERVICE); Memoryinfo memoryinfo = new Activitymanager.memoryinfo (); Activitymanager.getmemoryinfo (Memoryinfo); LOG.I (TAG, "Memoryinfo.availmem" +

As described in the Android documentation, the SDK level (integer) of the phone is running are available in: Android.os.Build.VERSION.SDK_INT; The enum corresponding to this Int. Android.os.Build.VERSION_CODES class. Code Example: int

Some of the fundamentals of Android testing are described earlier, and several examples of Android testing will be presented in conjunction with the apidemotest example. Before this you can refer to the Android Test tutorial (3): Test project to

Broadcast receiver in Android can be used to listen for broadcast events. Before using broadcast, you must either use code or register in Androidmanifest.xml. The following example implements using SMS to trigger an example in

If the @provides method is complex, you can move the code to a separate class. This class needs to implement the Guice provider interface, which defines the following Public interface provider { T get ();} As a generic interface. In this

Android's own alertdialog,progressdialog,datepickerdialog,timepickerdialog can be used for simple dialog box display. You can use some custom dialog boxes when you still have these dialog boxes that don't meet your application's needs. There are

Also because of the weekend night to watch TI3 competition, has not found time to write a blog, leading to have been a long time not updated. Ashamed! You'll get back to your schedule and try to make sure you write every week. Here is also the first