I. Different Layout
The screen sizes of Android mobile phones vary by 480X320,640x360,800 X. How can an app automatically adapt to different screens?In fact, it is very simple, just need to create different layout folder under the res directory, such as layout-640x360, layout-800x480, all the layout files will be written to R after compilation. java, and the system selects the appropriate layout based on th
Droid @ screen: the Android mobile phone screen is displayed on the PC screen,
Droid @ screen is a tool used to obtain the mobile phone screen and display it on the PC screen. It integr
Here is a tool--[email protected], used to get the phone screen, displayed on the PC screen. It integrates, video and other functions in one.Installation
1.: http://droid-at-screen.org/download.html, after download is a jar package, put in a directory can.2. Install JDK6 or later3. Install the android SDK (download a full package from the
In actual development of the Android source code, two problems are encountered: instant screen notification after the screen is disconnected from the screen lock, and instant screen notification during the call; because the problem of wake-up on the
Article 3. Pre-development knowledge supplement: length units and screen resolutions of Android, which are also reproduced ~~, Android screen resolutionThis article is a bit early, but it is very practical. For more information about the Unit, see the red part.
Screen Resolu
This article is described as a common Android code, mainly used to determine whether the phone screen is horizontal or vertical, in the judge screen level or vertical, you can respond to the program, the instance code is only to determine if it is a vertical screen, if the correct return true, otherwise return false.
. gesturedetector. ongesturelistener; Since api-1,
Android. View. gesturedetector; Since api-1,
From the API, from the beginning of the api-1 has supported the gesture and gesture listener, so many say api-4 to support this sentence is also true! Because:Android. gestureThis class is fromApi-4Is supported. This classInput Method Gesture RecognitionWill be used in! So ~
Conclusion: Touch Screen Gesture Recog
First look at an Android screen full screen implementation code
The code is as follows
Copy Code
@Overrideprotected void OnCreate (Bundle savedinstancestate) {TODO auto-generated Method StubSuper.oncreate (savedinstancestate);Requestwindowfeature (Window.feature_no_title);GetWindow (). Addflags (WindowManager.LayoutParams.FLAG_FULLSCRE
Detailed explanation of the Android screen direction, detailed explanation of the android Screen
The screen direction is for Activity, so you canAndroidManifest. xmlFileMarkedScreenOrientationSet attributes, for example:
The screenOrientations attribute has a total of 7
Brief Introduction to Android touch screen Gesture Recognition and android touch screen gesture
Most of the time, the use of touch screen Fling, Scroll and other Gesture (Gesture) operations will greatly improve the user experience of the application, such as rolling the
Android:theme= "@android: Style/theme.dialog"//activity displayed as dialog box mode
Android:theme= "@android: Style/theme.notitlebar"//Do not display the application title bar
Android:theme= "@android: Style/theme.notitlebar.fullscreen"//Do not display the application title bar and full screen
Android:theme= "The
Summary of screen adaptation in android, android screen adaptation
Why screen adaptation? For this reason, I will not talk about it. The online processing method either allows you to use several sets of images with different resolutions, or write several sets of layout files
Android screen adaptation solution and android screen adaptation
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Android
Android listens to screen lock/Open events, and android screen lock1. Two solutions
(1) Listen to BroadcastReceiver
(2) obtain the PowerManager event
2. BroadcastReceiver2.1. event
There are 3 events in total:
Intent. ACTION_SCREEN_ON: Intent. ACTION_SCREEN_OFF: Intent. ACTION_USER_PRESENT: unlocked
2.2. Permission
T
[Android] mobile guard device management permission lock screen, android lock screen
Device administrator Device Admin
Obtain the DevicePolicyManager object, and use getSystemService (DEVICE_POLICY_MANAGER) to configure the Device Policy Manager.
Call the lockNow () method of the DevicePolicyManager object to lock the
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