android screen magnifier app

Custom control series is over, make a greatest second act, fill the previous time buried a pit---"in-app language switching." App language change is a configuration, but this configuration and Android phone screen rotation is a little bit the same. When the screen rotates, i

Gettoplevelresources method of Resourcesmanager, the idea of this method is that in Resourcesmanager, all resource objects are stored in Arraymap, First, according to the current request parameters to find resources, if found on the return, otherwise create a resource object into the Arraymap. One thing to explain is why there are multiple resource objects, because there may be multiple directories in the res that fit different devices, different resolutions, different system versions, and acco

During development, we often need to set our applications to full screen or do not want title, Here there are two methods, one is to set in the Code, the other is to change in the configuration file: 1. Set in the Code: Package Jason. tutor; import android. app. activity; import android. OS. bundle; import

Android APP cannot receive push messages when switched to the background. androidapp 1. After the Android process is killed, the active mechanism of message reception in the background is protected. There is no good mechanism for the moment to stay active under any circumstances Android native systems can use the home

The Android mobile operating system is an open-source mobile operating system launched by Google based on Linux. We can perform corresponding operations on the simulator to implement various functions to meet user needs. Here we will briefly introduce how to implement full screen in Android. The implementation of the new version of

Now our mobile phones are generally built-in directional sensors, mobile phone screen will be based on the location of the automatic vertical and horizontal screen switching (if the screen is not locked). But sometimes our apps run only in a horizontal or vertical state, and we need to lock the screen orientation of th

more perfectly.One thing to be aware of is that Coordinatorlayout does not know the internal workings of Floatingactionbutton or appbarlayout, It simply provides an additional API in the form of Coordinator.behavior, which enables child view to better control touch events and gestures, and to declare dependencies between them, and receive callbacks through Ondependentviewchanged ().You can use Coordinatorlayout.defaultbehavior (your View.Behavior.class) annotation or use app:layout_behavior= in

Supporting different screenspreviousnext This lesson teaches you Create different layouts Create different bitmaps You shoshould also read Designing for multiple screens Supporting multiple screens Iconography Design Guide The screen size and pixel density of Android devices are different. Your applications run on Android devices of different sizes or pix

shown in the following:The flow in Fiddler is Bytes Sent + Bytes Received, which is two items in the accents circle.5, calculate the sum of this traffic is not to meet the requirements, of course, this is the product standards, such as: 58 of the app's first screen traffic can not exceed 200K. If the requirement is not reached, find out why.IV, grab packet check (JS/CSS) request header cannot take cookiesCookies:1, open fiddler, empty Fiddler Crawl r

use:Note: To better present the performance impact of the overdraw, here's a little trick--a constant refresh of the interface, so that enough GPU performance analysis diagram.as can be seen, left unmodified interface, overdraw serious, full screen red, from the GPU rendering graph, GPU draw rendering time exceeded 16ms benchmark. The main reason for so much over-drawing is the repeating background, the upper layout of the red area set the backgroun

: Launching a new app in Android secrets1. What happens when we touch the icon of an app on launcher on the Android screen?2. Where is the application execution portal?3. How did the process of a new Android application come about

Http://www.tuicool.com/articles/nuyMZb1 common resolutions for Android phones today1.1 Common resolutions for mobile phones:4:3VGA 640*480 (Video Graphics Array)QVGA 320*240 (Quarter VGA)HVGA 480*320 (half-size VGA)SVGA 800*600 (Super VGA)5:3WVGA 800*480 (Wide VGA)16:9FWVGA 854*480 (full Wide VGA)HD 1920*1080 High DefinitionQHD 960*540720p 1280*720 SD1080p 1920*1080 HD1.2 resolution corresponds to DPI"HVGA mdpi""WVGA hdpi""FWVGA hdpi""QHD hdpi""720P x

What's the behavior of App killed or restored by Android System or by users?First, user kills the app by swiping out of the screenThe DEMO process is killed and activity stack is cleared. And the system would relaunch the DEMO process automatically. When user launch the app, it'll just likes user taps

action_appwidget_update = "Android.appwidget.action.APPWIDGET_UPDATE";/*** Field for the manifest meta-data tag.** @see Appwidgetproviderinfo*/public static final String Meta_data_appwidget_provider = "Android.appwidget.provider";In Meta-data, Android.appwidget.provider is the keyword that is specified for Android, which is used to define the file for the app Widget provider information in the correspondin

Http://www.raywenderlich.com/56107/make-first-android-app-part-1 Activity Name. This is the first mention you ' ve seen of the word Activity , but it certainly won ' t being the last. In Android, an Activity is usually thought of as a ' screen ' in your app. It cou

(params. screenBrightness The above code is called when the left part slides up or down.The mligthchange code is attached. private void performLightChange(float brightness) { int resId = R.drawable.light_0; if (brightness Let's take a relatively good example.Copy code 1 package android. lekko. tools; 2 3 import android. app. activity; 4 import

1. Lock screen time Lock screen time controlCodeLocation: frameworks/base/packages/settingsprovider/src/COM/Android/providers/settings/databasehelper. Java Private void loadsystemsettings (sqlitedatabase dB ){......Loadintegersetting (stmt, settings. system. screen_off_timeout, R. Integer. def_screen_off_timeout );...... Control Data in: Frameworks/base/pack

Scroroller for Android (3) -- controls are moved across the screen (simple to use scroroller) and androidscrorollerMainActivity is as follows: Package cc.cn; import android. OS. bundle; import android. view. view; import android. view. view. onClickListener; import

Android system is also an application-specific form, corresponding to the system-provided root view object.The view object is rendered in the form.Each view object of the Android system inherits from the view class, including the view and ViewGroup objects. The UI of an app is constructed from a view tree that consists of views and ViewGroup objects that are use

Web: simple-you can generate a public link, like this. (These connections can also be opened in a mobile browser and then added to the iOS home screen as an "app.") You can show your work to public users at Proto.io Spaces.On mobile: You can create a free evaluation account for users and allow them to access a project. They can run your prototypes in iOS or Android