visual android app builder

Original: Visual Studio 2015 creates a solution for the Android project hint "Value cannot be null" in C #When you choose C # > Android to create a blank app, you are prompted with the following error:null. Parameter name:path1Since the Android SDK was previously installed o

and px under HVGA (320x480): 7sp=7px 15sp=15px 23sp=23px 8sp=8px 16sp=16px 24sp=24px 9sp=9px 17sp=17px 25sp=25px 10sp=10px 18sp=18px 26sp=26px 11sp=11px 19sp=19px 27sp=27px 12sp=12px 20sp=20px 28sp=28px 13sp=13px 21sp=21px 29sp=29px 14sp=14px 22sp=22px 30sp=30px The result of the above

Recently, many apps have met the immersion notification bar, the so-called Immersion notification bar: is used to navigate the various interface operating space in the context of the main program content, through the relative "invisible" interface to maximize the user's visual range to use the content itself. The latest Android 4.4 system's Notification bar immersion mode is in the software when the notifi

Hot on the heels of our previous GUI article, iPhone and iPad development GUI kits, today we focus on Android development. the idea is the same: to help streamline your app design and development, with a fairly comprehensive collection of Android GUI kits, icons, fonts ,. PSDs and tools, that will allow you to focus on developing rather than having to design ever

Android app exit by pressing the back key This article describes how to exit the application by pressing the back key for Android. Share it with you for your reference. The specific analysis is as follows: Recently, when I was working on an Android Application, I encountered a problem: how to enable long-Press the back

Objective This is the main implementation of an Android application, static broadcast, dynamic broadcast two ways to change the content of the widget, that is, in the blog on the basis of the experiment to modify, so the focus of this experiment is the realization of appwidget small parts ~ First, let's simply say what the widget is. The application window widget (widget) is a tiny application view that can be embedded in other applications (such a

displayed dialog box: Private void showUpdateDialog () {AlertDialog. builder builder = new AlertDialog. builder (this); builder. setIcon (android. r. drawable. ic_dialog_info); builder. setTitle ("upgrade the

sound.Iv. release of resourcesWith the previous connection server, login system, enter the room corresponding to the departure room, logout system, release resources. The code is as follows:protected void OnDestroy () {//Leave room anychat.Leaveroom (-1); Log off the login anychat.Logout (); Releasing resources off the SDK no longer returns to the login interface Anychat.Release (); }You can enter the room after you leave the room, but the SDK will no longer work after logging off and releasing

Situation BriefIn the process of developing an Android app, there is a need to launch a service in the app that runs in a standalone process, keeps a long connection to the server, displays the message that the server pushes over the notification bar, and sets the click action. Click to jump to the corresponding activity in the

(320x480): 7sp=7px 15sp=15px 23sp=23px 8sp=8px 16sp=16px 24sp=24px 9sp=9px 17sp=17px 25sp=25px 10sp=10px 18sp=18px 26sp=26px 11sp=11px 19sp=19px 27sp=27px 12sp=12px 20sp=20px 28sp=28px 13sp=13px 21sp=21px 29sp=29px 14sp=14px 22sp=22px 30sp=30px The result of the above parameter is that

whichButton ){18.19./* User clicked Yes so do some stuff */20 .}21 .})22. setNegativeButton (R. string. alert_dialog_cancel,23. new DialogInterface. OnClickListener (){24. public void onClick (DialogInterface dialog, int whichButton ){25.26./* User clicked No so do some stuff */27 .}28 .})29 .. create ();Send Call to VoiceMailIn the preceding example, the list items are implemented by defining Array resources. The list items can also use Content Provider as the data source. In this example, the

how the Android app worksAndroid is based on the Liunx kernel, but unlike traditional liunx-based PC systems,The user has no absolute control over the Android app. PC System,selecting "Exit" or "close" option on the application's system menu will kill the process directly. This is not the case with

indicates the persistent attribute. For frameworks/base/services/Java/COM/Android/Server/systemserver. JavaActivitymanagerservice. setsystemprocess ();Set your app. maxadj to system_adj, that is,-16. Principle:Processes in Android are hosted. When the system process space is insufficient, the process is automatically reclaimed based on the priority. This brings

) wv.cangoback ()) {Wv.goback ();return true;}}return false;}});Setting up JavaScript supportWv.getsettings (). Setjavascriptenabled (True);Wv.getsettings (). Setjavascriptcanopenwindowsautomatically (True);Wv.getsettings (). Setdatabaseenabled (True);Wv.getsettings (). SetDatabasePath ("/data/data/com.xinze.joke/databases");Create a Webviewclient objectWebviewclient WVC = new Webviewclient () {@Overridepublic boolean shouldoverrideurlloading (WebView view, String URL) {Wv.loadurl (URL);Remembe

properly on the Android 4.0.3 platform. Therefore, in this case, you must explicitly include a run-time check:if (Android.OS.Build.Version.SdkInt >= Android.OS.BuildVersionCodes.Lollipop){Builder. Setcategory (Notification.categoryemail);}(Note: Android.OS.BuildVersionCodes.Lollipop refers to Android 5.0)2. Android AP

Source solution is English version, address: Https://dzone.com/articles/fix-for-could-not-connect-to-the-debugger-while-deProblem phenomenon:1. After running the button, you can successfully publish the program to the emulator.2. Subsequent release of the program is started, instantaneous stop. You can start the program manually from the emulator later, sometimes to start, sometimes not.Cause of the problem:1.VS was released with rapid deployment.2. Processor is too new, hyper-V compatibility is

This is a small example of learning the chronometer control. paste your own code and communicate with you. Effect: Implementation ideas: Use the chronometer control to operate the meter. Set the initial time by setting setbase (long base), and then add a setonchronometerticklistener (chronometer. onchronometerticklistener L) event to determine whether the time has arrived, and then call its stop () method to stop timing. Implementation Code: Main. xml: Activity Code: Package COM. jiahui. ch

Recently read the article "Speed Up your app". This is an article on the Performance analysis and optimization of Android apps. In this article, the author describes his app analysis optimization rules, the tools and methods used. I think we should learn from it. Good English readers can read the original text (link: http://blog.udinic.com/2015/09/15/speed-up-you