file explorer android

This example describes how Android reads a file stream from a resource file and displays it. Share to everyone for your reference. Specifically as follows: In Android, if some text files, such as TXT in raw, to read directly out, put on the screen to display, you can: private void Doraw () { InputStream is = Th

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

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:

I. Data storage File: In android, you can create a file to save data on the storage device of the device or an external storage device. By default, files cannot be shared among different programs. Context in android provides several methods for file operations. 1). openFileO

Android environment is finished, directly is a HelloWorld program, please see "Using Adt-bundle easy to build the Android development environment and Hello World (Linux)" which makes it difficult for many people to clarify the basic structure of the entire Android project. In fact, the Android project, with other Java

Android. mk File Syntax Specification Update, modify, and add images based on the serialization on eoeandroid. Translate ANDROID-MK.TXT files today (original English files in/development/ndk/docs/android-mk.txt) Android. mk File S

= 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 -

I always think that development is messy, because several projects need to be carried out at the same time, and version iterations are required. I have never studied software engineering and feel a lot of pressure. It seems that the next time you are free, you still need to find a software engineering book to read well. The voice input of Google Pinyin is powerful, and the recognition rate is almost. It may be related to my standard Mandarin. The address of code is: http://code.google.com/p/app

First of all introduce Android using caching mechanism to implement file download When downloading files or browsing files online, or in order to ensure the correctness of file downloads, you need to use the caching mechanism, often using softreference to implement. The SoftReference feature is that an instance of it holds soft references to a Java object that

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

Three File data external storage Each Android device supports a shared "external store" that you can use to save files. This could be a removable storage medium (such as an SD card) or an internal (fixed) store. Files saved to the external store are public and can be modified by the user. Note: Files on external storage devices, all applications can access it, and can even be connected directly to the compu

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,

In Android, there are two methods to display the file list in the SD card through ListView: Display by inheriting ListActivity; and display by using BaseAdapter. BaseAdapter is a common base class adapter used to provide display data for ListView, Spinner, and other controls. The following describes how to use the BaseAdapter class to display the SD card through LIstView: 1. main. xml interface design, as

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

A recent project needs to implement a Bluetooth transmission APK feature that can search around the Bluetooth phone and share files. From the need to talk about the Android phone with the Bluetooth transmission module can meet the needs, the implementation is also very simple. However, the headache is that although the general mainstream models are configured with Bluetooth module, but the Android model is