The company has a 16 gb sd card. After it is put on the mobile phone, the image library has never been flushed out. at first, it was thought that the SD card was very big and it took some time to scan. but the next day, there was still no card in the Image Library. that's strange. The SD card clearly has images. Why is the image not shown in the Image Library. check the log and find the SD card scanned again. there are also images scanned logs. I thought it was a problem with the image display i
Summarize Android nomedia Avoid file leaks in System gallery and system ringtonesImages of projects in application development are always included in the system's GalleryThere are 2 ways to avoid images that are included in the System galleryThe first one for the pictureRename the. png suffix to the. ing suffixLike Ic_launcher.png instead of ic_launcher.ing.Another kindThe directory where the project holds
Some specific software automatically generates a file named ". Nomedia" in the cached Pictures folder, shielding the scanning of other software.This folder represents the MP3, MP4, RMVB, JPEG and other media files such as audio and video, so the system library is not visible.However, some special software such as quick maps, MX player can also be in the settings to cancel the identification of these files!Android
Android Camera Photo Samsung BUG Summary
Android Camera Samsung BUG:
Recently, the camera function was used in the Android project. The mobile phone of the Android model runs successfully, but the camera of Samsung encounters a bug.
The BUG details are as follows:
(1) The image data may not be returned after the camera
Figure Description: Moving, backup after the launch of Android virtual machine appears
Solution to the problem of panic:could not open D:\java2\android\android-sdk-windows\.android\avd\test.ini
A few days ago, I am sorting some files, the previously installed on the Android
Summarize Android to avoid file leaks in System gallery and system ringtonesImages of projects in application development are always included in the system's GalleryThere are 2 ways to avoid images that are included in the System galleryThe first one for the pictureRename the. png suffix image to. ing suffixFor example Ic_launcher.png instead of ic_launcher.ingThe second KindThe folder where the project holds the picture is written/.nomediaFile
Android Camera Samsung BUG:The recent use of the camera feature in Android projects, other models of mobile phones have been successful, but only in Samsung's camera encountered a bug.The bug is reflected as follows:(1) Image data may not be returned after the camera is photographed; The Onactivityresult data is empty(2) Samsung's camera forced to switch to a horizontal screen led to the Activity restart li
Brief introduction:This article describes how developers ' apps use media storage services (including Mediascanner, Mediaprovider, and media information parsing) in Android, and how to update the app's new or modified files to the media database, How to hide the files generated by the app in the multimedia application, how to monitor the changes of the media database and so on.Android has an original set of media storage services, the process name is
This is my collection of the classic books on Android development, high-definition PDF electronic version, can be downloaded in my Baidu network free of charge, I hope that the need for friends to help. Directory:Android 4 Advanced Programming (full source code included)"Crazy Android Handout""Android App Development (Guo Hongzhi)""
Android Update module custom updateThis summary is written because of a bug in the project that is compatible with the Android systemThe Android project was originally using an API-provided download methodas follows:Downloadmanager Downloadmanager = (downloadmanager) getsystemservice (activity.download_service);D Ownloadmanager.request request = new request (Uri.
First, understand the Android operating system
Android was first founded by Andy Robin (Andy Rubin) and was acquired by Google in 2007, and Google has achieved great success with its Android operating system on smartphones.
1, the characteristics of the Android operating system
The
Android Android-use Eclipse to develop the first android Application, android-android
Open Eclipse and select File-New-Android Application Project
Application Name is our Application Name, which is also the Name we see in the mob
Mobile phone Bluetooth control relay wireless lock Iot Android source code android development Android WIFI control detailed annotation test stability no bug, android Android
I. functions:
1. Connect and disconnect Android WIFI, a
public pictures directory. new File(Environment.getExternalStoragePublicDirectory( Environment.DIRECTORY_PICTURES), albumName); if (!file.mkdirs()) { "Directory not created"); } return file;}Hide your files. Place a file scanner to scan it (hide your files)You can include an empty file named. Nomedia in your external memory directory (the prefix of the note in the file name). This will place the
Google recently officially released its Linux2.6 kernel-based mobile operating system--android, the latest SDK is now available for download, and its app development environment is Java.
CharacteristicsProgram Framework reusable and reusable componentsDalvik virtual machines optimized for mobile devicesIntegrated Browser, which is based on open source WebKit engine developmentThe optimized graphics system is provided, which consists of a custom 2D gra
Android Android-build an android development environment, android-android
Android official website address: http://developer.android.com/, download and install AndroidSDK following the steps below:
Download ADT and SDK: http://dev
Android SDK Android NDK android Studio officialIf the download speed is too slow, please use thunder, Baidu cloud offline and other methods to download.For Linux systems, if you cannot upgrade online, see belowsudo vi/etc/hostsAdd to74.125.206.93 dl-ssl.google.comHere are the various.
2014.7ADT BundleHttp://dl.google.com/
Storage OptionsEnglish Original: http://developer.android.com/guide/topics/data/data-storage.htmlAcquisition Date: 2015-02-06Overview of storage methods
Shared Preference for simple data
Internal storage for private data
External storage for large-scale public data
SQLite Database for structured data
In this article
Using the Shared Preference
Using internal storage
Using external storage
Working with databases
Use a network connection
See
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