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In this tutorial, I'll show you how to compress and decompress files within an iOS app. We will use a third-party library called Ziparchive to implement this function. Although there are other solutions for compressing and decompressing files, I feel that ziparchive is the fastest and easiest to use.Why do I need to unzip
[Android development experience] What Should cached files of an APP exist? After reading this article, you should be clear about it. androidapp Reprinted please indicate the source: http://blog.csdn.net/zhaokaiqiang1992 As long as it is an APP that requires online data retrieval, cache
These two days encounter a little problem, make a record:Symptom: Run, debug when reported: Unable to execute dex:multiple Dex files define error, after the release of the app installed to the phone after the run, prompted: "Program name has been stopped";Workaround:1, Project->properties->java build Path->order and Export, remove: Android 4.3.1 and
============ Problem Description ============After Android installs the app, can you get the files in the Meta-inf directory of the package?After installing the app on the phone and then opening the app, does the SDK in the app ha
Today, when I wrote the program, my Android Studio suddenly compiled the error (the error is as follows:) and then after my several times to find out that every time you have to clear project and then build on it, if you build the second time to error. Then I found the strongest teacher (Google) to try to solve! Unfortunately, what I see on Google is the solution on eclipse. Didn't find the answer I wanted, do I have to clear project every time I buil
Android files saved to the app and SD card
Decompression on the phone on a Windows compressed file, found that Chinese is garbled, the solution is as follows: Find the System.zip.pas file will e: = tencoding.getencoding (437);Instead of E: = tencoding.getencoding (936); After saving the new multiplatform project, adding this file and recompiling, compiling this project, SYSTEM.ZIP.DCU and System.zip.so two files, respectively covering to the installation directory of Delphi \lib\
Independent of the system app in the android source code, developed like a common app, Android appI personally recommend that you first import the formatted xml and import in the ide/eclipse of the android source code to your compiled eclipse. If the
[Android] Android mobile app data to SD, android mobile app [Android] Android mobile app data to SD You can specify it in the menifest fil
Android encapsulates this approach, and we don't have permission to call it, so we can just go through the aidl and use the Java reflection mechanism to invoke the system-level approach. The following code: (note more detailed) /** * Role:-----Get the size of the package-----* @param context * @param pkgname app's package name * @param appInfo entity class for storing some information about the app/PU
Android's automated testing has many frameworks, where UI Automator is the official black-box UI-related automated test tool (GitHub homepage: Case used in Java, and today we practiced the sample program in the official document, There are still some small problems to be summed up.Environment Preparation:1.JDK (yes, you are not mistaken, basic Android development environment necessary), as well as the corresponding environment variable configuration,
Helloworldproject creation and execution Android App 1.New, ProjectIf not found, can go to other----Android found, is the same:2. Then enter project information in turn:3. Execute the Created program4. See the execution effect from the simulator: 5. Folder structure analysis of the project Let's take a look at our project folder diagram:Wh
About Android ProjectsA project is a container for saving source code and resource files.The Android SDK tools provided by Google can only be compiled and packaged for projects with a fixed directory structure. It is therefore highly recommended to create an Android project using Eclipse + ADT or Android commands.You c
ExperimentCreate Android apps from the command line This article is primarily to build an Android environment, then create an Android app from the command line , compile and package with Ant, and deploy with adb . (This article is mainly to prevent the next time to build the Androi
been discovered, but before this has been too many Android users "injured."The latest statistics from Google show that 34% of Android devices use different versions of Android 4.1. Google has said that Android devices have more than 900 million global activations, and that at least 300 million users around the world a
will remind you to set up the JDK first, and follow the instructions to find the JDK directory. After you fill out the project name, select the USB Device and then complete the project build, and the IDE automatically generates the files and directories needed for the basic project. Second, code writing When you're ready, you can finally start writing our Hello Android
an XML file for reuse at the next installation.ThreeIn fact, every time the Android phone system starts, it will use the PMS to install all the APK in the Android system once, altogether 4 steps, as follows:The steps 3rd, 4th, and the individual installation of an app are the same. Let's analyze the first two steps:The 1th step, because the installation informat
effect, of course, more than 60fps is not necessary.The performance goal of the development app is to keep 60fps (some less will not affect the user experience), which means that each frame you only have 16ms=1000/60 time to handle all the tasks (this time can be used to compare with TraceView time, not too much for example greater than 32ms, Otherwise, it should be optimized).6) Android, UI and the GPUUnd
. Second, code writing When you're ready, you can finally start writing our Hello Android, and before we start writing the code, we'll look at a few files: Res/layout/main.xml app main form layout file, what your application looks like in this definition, there are design and text two modes Res/values/strings.xml can be understood as a i18n file, which is
Android learning route (3) run your Android app, route android If you have created your Android project according to the previous lesson, it contains the default "Hello World" source file, allowing your project to run immediately. How do you run your application? Two things:
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