This example describes the Android Desktop Component App widget usage. Share to everyone for your reference. Specifically as follows:
Android apps, as well as apps, are apps for app widgets. Many people will develop application apps without developing app widget apps. This
First put the start page in the project resource, the picture is generally 1080*1920 jpg.Create a new activity,After the creation is successful, open the activity you just created to write the code:public class BZLaunchActivity extends AppCompatActivity { private final int SPLASH_DISPLAY_LENGHT = 2000;//两秒后进入系统,时间可自行调整 @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_bzlaunch);
The general method for devices of different Android versions to correctly obtain the screen resolution when talking about the android screen resolution, we all know, but how to correctly obtain the screen resolution? Does android2.2 \ 2.3 \ 4.0 \ 4.1 use the same method? The
phone in the second half of the year, and the legendary IPhone8 will adopt a full screen design.How to fit a full screenAlthough the current market full screen mobile phone is not many, but with the addition of Xiaomi, Huawei, Samsung, Apple, will inevitably cause a full-screen mobile phone outbreak, so it is necessary to fit a full-
background : There have been two blog posts written about activity beforeThe life cycle of Android activity: Detailed description of the activity's entire life cycle, transitions between states, and the state of the activity that was saved when returning to the desktopTrigger timing of Onsaveinstancestate and Onrestoreinstancestate in Android activity: the triggering time and effect of these two methods in
get friend data from a communication record 1979.1.2 Add a friend in a communications record 1989.2 Creating shared Data 1999.2.1 Creating shared Data 2009.2.2 External application Access 2049.3 Summary 20610th Chapter Mei 美图秀秀--Development 2D drawing 20710.1 Screen Drawing Basics 20810.1.1 Canvas Class 20810.1.2 Paint Class 21010.1.3 Color Class 21210.1.4 Path Class 21310.1.5 Drawable Class 21610.2 Using Text 21710.3 Using bitmaps 21910.4 Frame Anim
hacker first came into contact with KeyguardManager, which is used to block the Screen Saver Of the system. public class KeyguardManager extends Object Class that can be used to lock and unlock the keyboard. get an instance of this class by calling Context. getSystemService (java. lang. string) with argument Context. KEYGUARD_SERVICE. the actual class to control the keyboar D locking is KeyguardManager. KeyguardLock. A lock and unlock class is used t
In the project development process, usually have to encounter screen adaptation problems, the following is my project in the development process summed upA set of screen adaptation program, share to everyone;The Android screen fits some concepts that you must understand:Pxis the abbreviation for the English word pixel,
Learning notes: App transduction-Details Android and iOS platformsReprinted from: http://www.woofeng.cn/articles/168.html Copyright belongs to the original author allYa Ru has leeOriginal address: http://blog.boocss.com/app-android-ios/One. Android versionIn the
Screen Size:
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
You have to take a picture of the screen (of course, you can also take a picture to achieve your goal ). As a result, Google finds some applications that require Root permissions and do not require Root permissions, which are somewhat disappointing and mostly unavailable. So I want to develop an application on my own. The getDrawingCache method is provided in the View. You can obtain the screenshot of the View by using the second method, but only by c
?You may have encountered this situation during app use:AnrCongratulations, this is the legendary ANR.1.1 What is ANRThe ANR full name application not responding, which is "application unresponsive." When the operation is not processed by the system for a period of time, the system level will pop up the ANR dialog box.1.2 Why does it produce ANR?In Android, the app's responsiveness is monitored by Activity
Android uses two general properties to classify device screens: size and pixel density. As a developer, we have to design our applications to take into account that our applications are installed on devices with different screen sizes and pixel densities. Therefore, our app should include an optional resource to optimize the application appearance to support devi
http://blog.csdn.net/jiangwei0910410003/article/details/40509571Today started my app development, because I have been doing the SDK, so the interface UI is very few, just started to do Android applications, there is no dp,px,sp and other concepts have a deep understanding, only know their transformation, and write a conversion tool class. Android has been doing m
tab columns of six tabs in layout-xlarge. If the application layout is the same on all devices, layout of different sizes is not considered. The layout * folder shows that the application supports horizontal and vertical screens on hdpi and xhdpi, and the layout of the horizontal and vertical screens is inconsistent, but the layout of devices of different sizes is not considered.The style before Android3.0 differs greatly from that after Android3.0 (including 3.0). In the figure, the
LeadThe Great Army of Android, the development of nearly ten years, technology optimization day to month new, now Android 8.0 Oreo are released, Android system performance has been very smooth. However, to the major manufacturers in hand, to change the source system, so that the Android native system has become a mixed
Objective:After Android 4.4, Google provides immersive full-screen experience, in immersive full-screen mode, the status bar, virtual key dynamic hidden, the application can use the full screen space, according to Google, to give users an immersive experience. After Android
understand faster.1, create a new project Lesson35_helloappwidget, note that creation Activity may not be selected when creating.2, ready a widget display layout file Layout/widget.xml, the content is as follows:xml/html Code
XML version= "1.0" encoding="Utf-8"?>
linearlayoutandroid:layout_ Height= "fill_parent" android:layout_width= "fill_parent" android:orientation= "vertical" xmlns:android= "http://schemas.android.com/apk/res/android
Previous "Android" read all the pictures on the SDcard card and show that the reading process has a progress bar display (click the Open link) test on the real machine is very problematic, often encountered memory overflow, the situation of the card dead. Because of the memory on the real machine now, 2G has rarely seen, basically all 8G look like. This app is unfriendly because it puts the read-out image o
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