android screen magnifier app

Android screen adaptation solution, android adaptation 1. Let's talk about how to do it first. I will explain it later: 2. Now let's explain why we should put these three sets: These three sets are actually based on the content. Why can these two sets be adapted to mainstream resolutions? So we can use two types of dimens. Why should we use three sets? W

Longer build times will slow down project development, especially for large projects where the app is built for a long time of more than 10 minutes, short minutes, long build times have become a bottleneck for development, and this article is based on Google's official documentation, plus some of its own understanding to provide some optimization suggestions to improve the speed of the app build.1, create a

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

input to call the PC Input Method , you can also adjust the resolution arbitrarily:2. Run on Android x86 system:First download Android x86 system (project website download),Currently the latest version is (as of 2014/10/02):android-x86 4.4-r1 (kitkat-x86)I installed in VMware, but can not change the resolution, it is recommended to install with VirtualBox, you c

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,

The difference between Android and simulator is the eternal topic, the question of why, the puzzle. The simulator exists and has its effect, but do not believe anything about the simulator. Unless you're an Android pure top app developer or enthusiast, I suggest you throw away the simulator. Its idealized guidance gave us a lot of trouble. Of course, that's a goo

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

it would never lock the screen again (because it never timed out). It seems that "the revolution has not yet succeeded, comrades still need to work hard" ah. So why did not go into the lock after the start of the screen state. is not the system has the Timeout lock screen value to modify it. I checked the contents of the settings.db through sqlite3 and found tha

= "vertical"> 5 6 7 android: id = "@ + id/viewpagerLayout" android: layout_height = "fill_parent" android: layout_width = "fill_parent"/> 8 Layout1.xml 1 2 3 android: layout_width = "fill_parent" 4 android: layout_height = "fill_parent"

?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

: support is used during import. v4.app/view: keep consistent private ViewPager viewPager1; private FragmentPagerAdapter fpAdapter; private List In this case, you can achieve the touch screen switching effect, but you also need to note: (1). You need to change MainActivity inheritance from Activity to FragmentActivity.(2 ). you may encounter an error "the type is not applicable to the parameter (FragmentFi

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

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

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