An example of this article summarizes the Android file read and write operation. Share to everyone for your reference, specific as follows:
Files in Android are placed in different locations, and they are read in a number of different ways.In this paper, the ways and methods of reading the resource files, reading the data area files, reading and randomaccessfile
This article illustrates the saving and reading function of the Android implementation file. Share to everyone for your reference, specific as follows:
Note: There are Getfiledir () and Getcachedir () in the activity; method to obtain the current package file path from the current phone's storage space
Getfiledir ()-----/data/data/cn.xxx.xxx (current package)/f
The early Android system almost only supported the ARMV5 CPU architecture, do you know how many of these are supported today? 7 kinds.The Android system now supports the following seven different CPU architectures: ARMV5. ARMV7 (since 2010), x86 (from 2011 onwards), MIPS (from 2012 onwards), Armv8,mips64 and x86_64 (from 2014), each of which is associated with a corresponding ABI.The Application Binary inte
The overall process is divided into the following 6 steps:1, installation Java_jdk2. Configuring Java Environment variables3. Update the Android SDK4. Release the apk file from Unity3d5. Create an Android virtual machine and run it6. Install the APK file into the Android vir
Resources in Android refer to non-code parts, such as clips, audios, videos, and characters. Generally, we store native files in assets. For example, MP3 files cannot be directly accessed by Android programs. They must be read as binary streams through the AssetManager class. Layout files are generally stored in the res folder, such as anim, drawable, layout, values, xml, raw, and menu. These resources can
Android Studio Gradle file parsing, androidgradle
This article is reposted from stormzhang's blog
What is Gradle? Gradle is a dependency management tool based on the Groovy language and mainly for Java applications. It discards various complicated configurations based on XML, instead, it is a Groovy-based internal domain-specific (DSL) language.
The basic concepts of Gradle are described in detail in my op
The general process is divided into the following six steps:
1. Install java_jdk
2. Configure java environment variables
3. Update the android sdk
4. Release the apk file from Unity3d
5. Create and run the android Virtual Machine
6. Install the apk file on the android virtua
This article briefly introduces how to use the ant script Android project to compile and package it into an APK file and install it on your mobile phone.
Main steps:
1. Generate the R. Java file: Use ant and command line to generate R. Java using the aapt. Ext program provided by Android SDK.2. Generate the. aidl
The android getView method is not executed because the layout file does not display the list.
One reason is that the layout file does not display the position in the list.
For example, the following Layout
Android: id = "@ + id/list_find"
Android: layout_width = "mat
Official Android development documentation Training series course Chinese version: data storage file storage
The file system used by Android is similar to the disk-type file system on other platforms. This section describes how to use FileAPI to read and write files in the
For example, the Login program of Android and the Helloworld program of Android cannot run a correct program correctly. It has been depressing for a long time, finally, after a test, the program of the self-built project was successfully run in the Android simulator. The following is a summary of the procedure startup interface settings:
In the
Gradle packaging android (implement external import signature file, multi-channel packaging, import ant script)
Android automatic packaging has been completed recently. Previously, it has completed packaging in the form of command lines, the original ant script packaging, and android-based SDK packaging, and implemente
Copyright NOTICE: Reprint must indicate this article transferred from Zhangjie's blog: http://blog.yanzhenjie.com
Android Debug DAFA Custom IDE Default signature file, do you bother debugging a third-party SDK when the debug signature and release signature collide? Do you pass the third-party feature test when you debug, and the release is not available?If you haven't met the question I'm talking about
When doing Android NDK development, C code needs to be compiled with Ndk-build, while Java code needs to be compiled with the Android SDK.There are two methods of compiling C code:First, write the C code, and then use Cygwin to build ndk-build environment, with Ndk-build to compile the relevant. so file (Libs directory),Then use eclipse to compile the Java progra
Introduction to ramdisk. img, system. img, userdata. img In the Android image file, ramdisk Image
After the Android source code is compiled, three image files generated in the out directory are ramdisk. img, system. img, userdata. img, and their corresponding directory tree root, system, and data.
Ramdisk. img is the root f
An Android. mk file is used to describe your source code to the compilation system. Specifically, this file is a small part of GNU Makefile and will be parsed once or multiple times by the compilation system. You can define one or more modules in each Android. mk file. You c
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