android screen magnifier app

will be destroyed when we rotate the screen, of course, it will also affect DialogFragment. Below I will use several examples, respectively using the above three methods, and how to best solve the above problems.3. Use onSaveInstanceState () and onRestoreInstanceState () to save and restore data. Code: Package com. example. zhy_handle_runtime_change; import java. util. arrayList; import java. util. arrays; import

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

, but I also said,xposed one-time hook too many methods will be error, Because the number of application methods in this case is not many, it seems to be quite normal, if there is a problem with the application of Hook big. So in order to solve this problem, we can first get all the methods of the application, at this time we can not do the hook operation, and then have all the method information of the class, after the method analysis, and then the method can be a separate hook operation to ver

usually refers to dpi (dots per inch). The smaller the screen density, the fewer pixels it contains.In the Android design specification, the screen density is divided into 4 categories: Low,medium,high,extra high. Screen orientation The screen orientation is h

. DialogFragment is Fragment, which is bound to the lifecycle of the current Activity, and the Activity will be destroyed when we rotate the screen, of course, it will also affect DialogFragment. Below I will use several examples, respectively using the above three methods, and how to best solve the above problems.3. Use onSaveInstanceState () and onRestoreInstanceState () to save and restore data. Code: Package com. example. zhy_handle_runtime_chang

: Code Changes Instant Run Condition Change the implementation code of an existing method Hot Swap supported: This is the fastest swap type to show code changes. Your app keeps running, and a new method is executed when the next method is called. Hot swaps does not initialize objects in the app you're running. Maybe you need to restart your current activity or r

install the driver, see OEM USB driver files.2. Enable USB debugging on your device. ? On more devices running Android 3.2 or older, you can find the option under Settings > Applications > Development.? On Android 4.0 and newer, it's in Settings > Developer options.Note:on Android 4.2 and newer, Developer options are hidden by default. To make it available, go t

transition is also relatively long, where the pixel transition is mainlyVersions of different pixels are still present. The reason is that there are still many domestic handset manufacturers to use the screen is not a stable version, often low-end phone screen resolution is relatively poor. and high-endThe resolution of the phone is relatively high. In fact, compared to

by GC frequent, resulting in the card. Cause a lot of reasons for the lag, but no matter how the reason and the scene, the end is through the device screen display to reach the user, in the final analysis is a problem, so, to solve the card, we must first understand the Android system display principle.Android System Display principleThe Android display pro

horizontal, vertical screen will only be executed once3, set the activity android:configchanges= "Orientation|keyboardhidden", the screen will not recall the various life cycle, will only execute onconfigurationchanged methodImplementation of vertical screen switching function in Android system under horizontal screen

Original address: http://developer.android.com/design/wear/structure.htmlThe user is accustomed to clicking on the icon to launch the app, but Android Wear is not the same. A typical wear application inserts a card into the stream at the right moment in a situation. This card may contain a button for quick interaction to open a full screen view (in some cases, th

Google recommends that we isolate resources from the code when developing Android applications so that we maintain them separately. With a separate resource design, we can also provide optional resources to support specific device configurations such as different languages or screen sizes, which becomes increasingly important as more and more Android devices are

introduction and Learning Plan This three series of articles can be known, The UI of the Android system is performed in two steps from drawing to displaying to the screen: the first step is on the side of the Android application process, and the second step is on the side of the Surfaceflinger process. The previous step draws the UI into a graphics buffer and gi

content lays out relative to the system bars (which occupy a space known as the window's "content insets"), override fitSystemWindows (Rect insets ). the fitSystemWindows () method is called by the view hierarchy when the content insets for a window have changed, to allow the window to adjust its content accordingly. by overriding this method you can handle the insets (and hence your app's layout) however you want.It's good to know about it. Hide Navigation Bar As a design suggestion, you shoul

to complete! Oh, a joke first. :)1th Step: Upload the signed apkIf you have a signed apk, please go to the Android Market to publish the website. If you haven't, you need to sign the APK first. If this is your first time posting, you will also need to pay $25 to apply for a Google Wallet account to collect the money.Now, please find the button to upload the app and click on it:At this point, you will see a

distortion problem, the picture from the big to small turn is not distorted, the effect is maintained. 36DP is obtained by 72/2, why divided by 2, is to the picture is for the 320dpi screen design, but the layout file is in the layout directory, that is, the layout is designed for the 160dpi screen, so need to convert to 160dpi standard density.When the app is r

development of similar functions, improve the code refactoring ability. advanced to the master.the 11th Chapter Curriculum summary and the project optimizationfirst of all to congratulate everyone to adhere to the last moment, success is often more this one insist, but also very grateful to all of you chose this course, I am in the course question and answer area waiting for everyone, is supposed to say goodbye, or to give you a course summary, and suggest that we look back a few times, and fin

This article for you to share in the Android how to achieve the Drop-down navigation menu effect of the whole process, for your reference, the specific contents are as followsAbout the Drop-down navigation selection menu effect in the News client more, of course, can also be used in other projects, so that you can easily select more menus. We can use the top of our app to have a navigation menu that slides

"Android" Android mobile app data to SDYou can specify it in the application's Menifest file, include the Android:installlocation attribute in the ... >Android:installlocation also has two additional attribute values: "Preferexternal" and "Auto", which, according to the literal meaning, may also understand what it means, or the following:If you define "preferext

Sometimes it is necessary to display the phone screen to a PC or Mac for the convenience of demonstrating a mobile app. Here's a method-use Vysor to achieve this feature.The appeal of Vysor lies in 3 areas:It works on Windows, Linux, or Mac.The USB cable sharing screen is almost real-time, while some wireless solutions have significant lag. Vysor still has a slig