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about the black screenBy default, when the program starts, there is a black screen period, because the first activity loads some data, such as initializing the list data.Removal Steps1./res/values/styles.xml in Theme, add a Android:windowbackgrounds property to set the desired picture2. In Androidmanifest.xml, set theme to the first startup activity.3. Add/res/drawable-port/loading.png (if the splash screen
First, one thing to say is that in Android, the width of the canvas canvas is actually the height of the screen. As a result, there are many ways to get a high screen width: WindowManager WindowManager = Getwindowmanager (); Display display = Windowmanager.getdefaultdisplay (); ScreenWidth = Display.getwidth (); Screen
Implementation ideas:The Windowmanagerservice Loop reads the following key messages and distributes them to the window, filtering the messages in the Phonewindowmanager.interceptkeybeforequeueing method before the message is distributed. Therefore, the implementation of the message before the distribution of the Interceptkeybeforequeueing method to listen to the current key is the volume down key, if the current state is the lock screen state, and the
Remove the title bar of Android to enable full screen and rotate the screen. This is a very common problem. In fact, it is very simple. I will not talk about it much, but I will go directly to the code. Public class MainActivity extends Activity {@ Override protected void onCreate (Bundle savedInstanceState) {super. onCreate (savedInstanceState); requestWindowFe
In the onreceive that receives the message broadcast, jump to the interface you want to display. Such as:Intent Intent = new Intent (arg0,mainactivity.class); Intent.addflags (Intent.flag_activity_new_task); Arg0.startactivity (Intent);In the OnCreate () method of the activity:Super.oncreate (savedinstancestate); GetWindow (). Addflags (windowmanager.layoutparams.flag_show_when_locked| WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON); Setcontentview (R.layout.activity_main);Set the theme property
The solution is: custom stylesstylename= "Welcomeapptheme"Parent= "Android:Theme.Light"> Itemname= "Android:windowbackground">@drawable/welcomeItem> Itemname= "Android:windownotitle">TrueItem> style>Then set in Androidmanifest.xml:Android:theme= "@style/welcomeapptheme"As followsActivityAndroid:name= "Com.cloudroom.ufu.ui.UFuWelcomeActivity"android:configchanges= "Orientation"Android:label= "@string/app_name"Android:theme= "@style/welcomeapptheme" >Intent-filter>ActionAndroid:na
This article describes a fun appImplementation ideas: Use a custom view on a transparent activity and then draw on the view. 9 of broken glass pictures, plus sound effects. And then disappear for a while.The main use of a postinvalidate () method, with a set to put the finger touched place, call Postinvalidate () in the Touch event, method to redraw the view.It is important to note that the playback sound is the same as the play sound in the previous blog's
When an Android phone (which should be the case for all mobile phones) receives a text message or call, the screen is automatically lit and the screen lock is unlocked for immediate operation, the following code is used to implement this function:Keyguardmanager Km = (keyguardmanager) getsystemservice (context. keyguard_service ); // Obtain the key lock manager
ProgramSet to landscape screen: Android: screenorientation = "Landscape" Expected screen width and height @ Override public void onwindowfocuschanged (Boolean hasfocus) {Height = RL. getheight (); width = RL. getwidth (); logcat ("RL. getheight () "+ height +" RL. getwidth () "+ width); super. onwindowfocuschanged (hasfocus );} AboveCodeNormal
Add two animation files in the project, file making trouble looking for Baidu:Device/qcom/your_project_name/bootanimation.zipdevice/qcom/your_project_name/shutdownanimation.zipAfter that, add the following code to the YOUR_PROJECT_NAME.MKProduct_copy_files + = device/qcom/$ (target_product)/bootanimation.zip:system/media/bootanimation.zip device/qcom/ $ (target_product)/shutdownanimation.zip:system/media/shutdownanimation.zip \Android Update boot
This article adds: Many online gesture articles say that Android supports gestures only from SDK 1.6 (that is, API 4), but I can also identify them using SDK1.5 simulators !. (I wanted to test the support effects of lower sdks, but I didn't have sdks earlier than version 1.5... my mobile SDK 2.2-,), so I checked the Api and found that: Android. view. GestureDetector. OnGestureListener; since api-1,
Ways to disable the Android screen and restart activity when switching screens1. Add the android:screenorientation= "Landscape" attribute to the Androidmanifest.xml activity configuration (Landscape is landscape, Portrait is portrait). Such as: 2. General screen switching, the activity to restart, in order to avoid restarting, you can add android:configchanges=
Original link: Supporting multiple Screens Android runs on many different screen sizes (screens size) and density (density) devices. For applications, the Android system provides a consistent cross-device development environment that handles much of the work of the application adaptation screen. At the same time, in or
Rubin, which mainly supports mobile phones.Android does not directly support the mobile screen to the computer, Android users should be aware that Android all the running programs are built on the application of the foundation, that is, to achieve Android screen to the comp
) wvga854* (480x854) Table 1 3.3 Mobile phone size distribution (http://developer.android.com/resources/dashboard/screens.html), as shown in Figure 3, is currently mainly based on the resolution of 800*480 and 854* 480 of mobile phone users are mostly Figure 3 From the above screen size distribution, in fact, the mobile phone only consider 3-4 5 inches between the density of 1 and 1.5 of the cell phone 4 UI Design From a de
Recently I have studied lancher, from the text message MMS framework to the bug and demand modification of launcher. Next I will explain the layout of the simplest home screen program of launcher, it gives readers a sense of getting started. The main screen of Android is divided into five screens, which are 0, 1, 2, 3, and 4 from left to right. So which programs
Recently I do a function, is to implement the Android program in the lock screen can continue to run, the author on the Internet to check some information, now sorted out, I hope to be helpful.1. How to monitor screen lock screenMonitor screen lock screen can be implemented
Winfrom: simple screen acquisition for Android phones and simple Android operations; winfrom android Why do I need to do this? It is because projection demonstration apps are often used. There are a lot of such software that can be installed to place the mobile phone interface on a computer, for example, 360 mobile as
1. Foreword Now there are a lot of Android phones to support the screen unlock, tapping screen unlock is a very useful function, but a dozen support tapping screen, and then only for unlock or lock screen, and then our application layer developers can not go in, completely
Android screen adaptive orientation and android adaptive Orientation Recently, I feel like I am getting stuck on the screen ......The Android phone is Xiami. How many resolutions can it have? Why !!!!!!! Amen ......There are two solutions ......First:HTML5 + CSS3 + WebView i
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