android file chooser

1. The project document so-called list androidmanifest.xml documents. The file, but with great leverage, for example: app name. icons, app-supported version apps, and more. I'll show you the role of each of the parameters in this list file below. To access the Drawable constants of the R.java file, use the icon's ic_launcher under this constant as the app icons

in the native Android to compile the APK, compile no problem, but at run time often appear as described in the title of the exception, and then the whole program crash out. .....I have encountered this problem often because of the modification of the resource files caused by, roughly the following several ways to solve:1. Referencing a class name problem: Customizing a view to use in a layout file, assuming

Android provides a tool class: Asynctask, which makes it easier to create long-running tasks that require interaction with the user interface. Compared with handler, Asynctask is lighter, suitable for simple asynchronous processing, without the use of threads and Handter. Asynctask is an abstract class. Asynctask defines three generic types params,progress and result: Params the input parameters that start the task execution, such as the URL of the H

Today, when I write a project, I import a jar file that I wrote, and I can't find the jar file error when I debug it:08-06 21:42:10.744:e/androidruntime (2578): java.lang.RuntimeException:Unable to instantiate activity componentinfo{ Com.example.iotlife/com.example.iotlife.mainactivity}: Java.lang.ClassNotFoundException:Didn ' t find class " Com.example.iotlife.MainActivity "on Path:dexpathlist[[zip

How to deal with android methods that exceed 65536. the number of method references in a. dex file exceed 64 k, android. dexI. Problem description: The number of Dex file methods in the application exceeds the upper limit of 65536. In short, the application burst. Ii. solution: Solution 1: Use a plug-in framework such

Problem Overview: Create an androidProgramThe following error occurs: The/Android-SDK-Windows/tools/lib/proguard. cfg file is not found. Cause: The SDK is incomplete. Solution: Method 1 You can create a proguard. cfg file in the/Android-SDK-Windows/tools/lib/directory. Add the following content:

void Copyassets () { string[] files; Try { Files = This.getresources (). Getassets (). List (""); } catch (IOException E1) { Return } if (!mworkingpath.exists ()) { if (!mworkingpath.mkdirs ()) { New Alertdialog.builder (This) . Settitle (R.string.error) . Setmessage (R.string.failed_dir_create) . Setpositivebutton (Android. R.string.ok, New Onclicklistener () { @Override public void OnClick (Dialoginterface dialog, int which) {

Android configuration file (3) ---- root node of the application 1. Generally, when an Android application is generated, the default AndroidManifest. xml file contains some default Android: backupAgent = "string" Android:

= kilobyte/1024; - if(Megabyte ) { -BigDecimal RESULT1 =NewBigDecimal (double.tostring (kilobyte)); the returnResult1.setscale (2, bigdecimal.round_half_up). Toplainstring () + "KB"; - } - - DoubleGigaByte = megabyte/1024; + if(GigaByte ) { -BigDecimal RESULT2 =NewBigDecimal (double.tostring (megabyte)); + returnResult2.setscale (2, bigdecimal.round_half_up). Toplainstring () + "MB"; A } at -

Android basic project and development: error opening trace file: No such file or directory error solution, androiddirectory This error does not affect the operation, but it seems annoying. There are several solutions: 1. xml labels are incomplete or not closed. It is common that. Eclipse does not check all xml tags. 2. It is said that the

When you develop an export project on Android, you find that you sometimes get an error, as follows: Problems were encountered during export:Error exporting Palmidentify/bin/jarlist.cache:resource is out of sync with the file system: '/palmidentify/bin/jarlist.c Ache '.Resource is out of sync with the file system: '/palmidentify/bin/jarlist.cache '. Some people s

A file encoding test is conducted to prepare for the next file. Four files with different codes must be prepared. The file name is specified in the code. The xml Code is as follows:Android: layout_width = "fill_parent" Android: layout_height = "fill_parent" Android: orienta

References: Gdbserver debugging shared library http://www.limodev.cn/blog/archives/393 Android C/C ++ program debugging (eclipse) http://xy0811.spaces.live.com/blog/cns! F8aecd2a067a6b17! 1480. Entry # Reference Code: (see the bottom of the file content) ~ /Mydroid/android-1.6_r2/development/self/helloworld/Android.

Next, in the previous chapter, we stored the data in the File. The layout File remains unchanged. For details, see main. xml. Android: orientation = "vertical" android: layout_width = "match_parent" Android: layout_height = "match_parent">

When Android calls the system to crop data without returning data, the file modification time is used to determine whether the user has cut or not. The android modification time Some mobile phone prompts that the content cannot be greater than 40 kb if you set the image to be returned when you call the cropping system for a company project ), therefore, you need

re-mount the system partition to make the system partition writable. If you do not execute this operation, you cannot modify the build. prop file. Adb remount (2) Next, enter the command line of the simulator: adb shell (3) write the configuration to build. prop: echo "dalvik. vm. dexopt-flags = v = n, o = v ">/system/build. propecho "dalvik. vm. checkjni = false ">/system/build. in this way, the prop is changed to the simulator. After verification,

Today production environment has a machine's hard disk full, troubleshooting found that my module in the/tmp/android-username directory left a bunch of shapes such as "emulator-1tph5l" files, occupy a lot of space.This module restarts several Android simulators repeatedly, creating a temporary file each time it is started, which looks like a copy of the system.im

How to slim down your Android Installation File (APK) It is an indisputable fact that the apk file of Android is getting bigger and bigger. In Android or the original version, the apk file size of an app is only about 2 MB. Now,

The obfuscation configuration file in the Eclipse project is copied to the as in the confusing process that prompts the following errorSolution:Delete the from -libraryjars libs/***.jar your Proguard-rules.pro file.The reason is that the Build.gradle file is configured withdependencies {Compile filetree (include: ' *.jar ', dir: ' Libs ')}Inside has been added jar package, confused

Android parses the APK file on the SD card and android parses the sdapk public void parseApk(Context context, String apkFilePath){ PackageManager packageManager = context.getPackageManager(); PackageInfo packageInfo = packageManager.getPackageArchiveInfo(apkFilePath, 0); if(packageInfo != null){ packageInfo.applicationInfo.sourceDir = apkFilePath