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The previous article describes Android using Proguard code obfuscation technology, but for some of the items that introduced third-party jar packages may be in error when exporting, you need to do some research on the Proguard configuration file to solve the problem. Proguard code obfuscation after exporting warning:can ' t find referenced class First, this time the simplest solution:For some

First, Address Book introductionThe Address Book is an app that comes with Android phones, which is an ContentProvider app that allows other apps to access contacts and make CRUD operations on contacts.Ii. Introduction to the structure of contacts databaseFirst, we can find the contacts2.db file in the File Explorer view, which is the address bookThen we opened it with SQLite and analyzed its database struc

Baidu Cloud software users to the detailed analysis to share the Baidu Cloud Android version to find the latest upload file method. Method Sharing: First step: Click menu, select Sort. The second step: Select chronological order, the first file in the current directory is the latest uploaded files. Well, the above information is small made up to you Baidu cloud of this software users t

I want to install an android development environment over the past few days.ProgramRunning in a cell phone, configuring an environment, tangle, the SDK cannot find the JDK, which is not identified. I remember that this problem did not occur during the sophomore fashion. Did Android experience a degradation after two years of development. I thought it was wrong to

Error:a problem occurred configuring project ': App ' .> Could not resolve all dependencies for configuration ': App:_debug Compile '. > Could not find com.android.support:support-v4:19.0.0. Required by:HackerTool:app:unspecified > Could not find com.android.support:appcompat-v7:19.0.0. Required by:HackerTool:app:unspecifiederror:failed to Find:com.android.support:appcompat-v7:20.+Workaround: Install the

Windows 7 64-bit, re-install Android SDK, The result encountered a problem: When checking whether the system has installed JDK, the prompt is always: Java SE Development Kit (JDK) not found.Error: Failed to find java version for 'C: \ windows \ system32 \ java.exe ': [2] the system cannot find the specified file In fact, my JDK has been installed. This problem wa

Android Studio after setting up Keymap to Eclipse, Eclipse has a good shortcut key ctrl+k, in Eclipse, you justWith a variable selected, and then Ctrl+k, the cursor is automatically positioned where the next variable is used, and the name of the shortcut is actually "Find+next".So why I set Keymap to eclipse, and then open the shortcut interface, see "find+next"

Installing Android Studio under Mac encounters this problemAndroid Studio is unable to find a valid JVMWorkaroundFind Android Studio.app in the app, right-click to display the contents of the package, locate Info.plist in the directory and open with any text editor, find Jvmversion and ?JavaHttp://java.com/inc/BrowserR

for a few controls, show the rationality of repeated debugging, others have been at a higher level to consider, optimization!I still in order to achieve an effect on the Internet repeatedly check the data to find similar cases, others are serious and really pondering the realization of this view, the internal principles, how to customize, to seek a good solution.I'm still looking at someone else's demo code when someone else has the source code in th

In Android development, find the activity that corresponds to the current interface, with the following steps: Create a new baseactivity to inherit from activity, and then rewrite the OnCreate () method in Baseactivity, using the GetClass (). Getsimplename () to get the class name of the current instance and print it through log. The code is as follows: Public class extends Activity { protectedvoid

the mistakes that occurred before.Bug 1:bug Description:　　　　Drawlayout slide out of the lagBug Action diagram:　　　　After:　When doing the project, the use of the official Android side-slip interface drawlayout, but, but found very lag, carefully studied some, found the problem, the original is I set the head of the picture is too big, 1920x1080 pictures, load consumption of too much time , so it looks like a motion picture.Solution Ideas:　　Since it is

Automated testing often encountered this problem, on this topic, the method is numerous, our purpose is to find a relatively simple and reliable: method one: First into the cmd window, adb shell: Cd/data/datals can see the package name, the shortcomings are obvious, Must root mobile First method two: first into the cmd window: adb shell ps|findstr/i "keyword" to search which not all, this does not need root cell phone, ah, this still live method three

Android will find the solution to the ListView problem, androidlistview If a ListView exists on our page, when we enter this activity, the page will be located at the position of the ListView instead of the activity header, this is because ListView gets the focus by default. Solution: Add android: descendantFocusability = "blocksDescendants" to the root layout

Recently in the circle of friends "looking for the name of the house" and "miles seek knife" such small games than the fire. I tried to write a version of Android, which is full of a series of shape near the word, the implementation of the principle is very easy: with a GridView and then every item into a square can be, click on the correct item to change the number of rows and columns of the GridView can be.First, the game description:Find the differ

1. We add the Google Library in Maven to Build.gradle (project):allprojects { repositories { jcenter () maven {URL "https://maven.google.com"}}} can be resolved.2. We can configure the new project to add the Google Library in maven by default:PathThis resolves the Android Studio:appcompat v7:27.+ package that is not found at each boot.The new project cannot find the

/java ', ' Src/main/aidl '] resources.srcdirs = [' Src/main/java ', ' src/main/aidl '] aidl.srcdirs = [' Src/main/aidl '] res.srcdirs = [' Src/main/res '] assets.srcdirs = [' Src/main/assets '] } } buildtypes { Release { minifyenabled false proguardfiles getdefaultproguardfile (' proguard-android.txt '), ' Proguard-rules.pro ' } } Dependencies { compile filetree (dir: ' Libs ', include: [' *.jar ']) testcompile ' junit:junit:4.12 ' compile ' com.android.support:appcompat-v7:23.1.1 ' } In So

Http://www.51testing.com/html/01/610901-864955.html Workaround:A. In the case of source code, find Androidmanifest.xml, find the Android.intent.category.LAUNCHER keyword and you'll find the activity you need.The package name is seen here; Package= "Com.chnMicro.MFExchange"Typically in the next line of XML definitions, searching for "package" will findB. No sour

Problem: Im trying to implement mapview example which is defined on Android Hello views example but now Im facing failed to find provider info for com. Google. settings error... Solution: The mapview example doesn't set API key by default. So you must set it. Here is step by step: Get MD5 from your system%JAVA_HOME%\bin\keytool.exe -list -alias androiddebugkey -keystore "C:\Documents and Settings\ Get

When doing React Native application, we often use react-navigation to do navigation bar, found that the title on Android is not centered, no problem on IOS.1 if only the title, then the Headertitlestyle set alignself: ' Center ' will be.2 If there is a return button on the left side of the title bar and the title is still not centered on the right, the simple way to do this is:Add an empty View of equal width and height to the right, as follows:header

) Local_module: = bblocal_src_files: = Libbb.soinclude $ (prebuilt_shared _library)3.libaa.so's MK file needs to be introduced in the above Mk.Local_path: = $ (call My-dir) include $ (clear_vars) local_module : = aalocal_src_files: = aa.cpplocal_ldlibs: =- Lloglocal_shared_libraries: = Bbinclude $ (build_shared_library) include $ (local_path)/prebuilt/android.mk This allows you to connect to a third-party library during the compile phase.2. Library not found at run stageThe library is not fou