Android

Failed to create folder on sd card, solution and File Cache, sd Cache1. Related code: Add permission: /** get SD card path **/private static String getSDPath () {String sdcardPath = null; boolean sdCardExist = Environment. getExternalStorageState (

Android developer _ backup SMS and android development backupZookeeper Principles of text message backup The principle of text message backup is to use the content provider to read and save the text message. Public class SmsBackupUtils {// callback

Android detects the insertion and unplugging status of headphones. In Android, A BroadcastReceiver must be created to monitor the broadcast of "android. intent. action. HEADSET_PLUG. Steps:1. Create a subclass of BroadcastReceiver, override the

Android screenshot: Save the image content of a view and place it on the SD card. Screenshot sharing is occasionally used in the project, so the following screenshot method is available ~ The saveImage () method is used to save screenshots of all

Android file copy Recently, a small test program was developed in the project, and files need to be copied. The Code is as follows: // fixed for raw data test. private static final String RAW_DATA_TEST = "***123***"; private static final

Android Fragment onActivityResult: no execution Solution In the project, Fragment redirects to a new Activity and needs to execute startActivityForResult. However, it is found that onActivityResult in Fragment is not executed. The following solution

Android library projects cannot be launched, androidlaunched1. Right-click the running project and select Properties 2. Click Properties to go to 3. Remove the check mark before is library. OK.Android library projects cannot be exported The package

Android blog garden client (3) blog list and content display, android blog Project address: https://github.com/ZhangTingkuo/AndroidCnblogs.git   After many days of hard work, the three Fragment lists on the blog page are displayed, including

Android multi-channel packaging and Android Packaging Each time a product is released, many channel packages are required. Previously, we used the per script to package the package. After we added the custom space attribute, we couldn't press it. It

ClassLoader and Android classloader I don't like General talk about those metaphysical principles, or remember those established things. People who rely on memories to make up for thinking are easy to fall into the cloud of people. In the end, they

[Android development diary in a row from scratch] (11)-Android Intent mechanism, androidintent Let's continue our Android journey. Today, I want to introduce the Android Intent. For component-based application development, you not only need to

Android programming experience-using ActionBar + Fragment + ViewPager to achieve dynamic Menu switching, actionbarviewpager1. First 2. the effect of this example is mainly applicable to the use of different Menu styles for Fragment switching when

Register as a Windows Phone developer and unlock the Windows Phone 8.1, phone8.1 Register as a Windows Phone developer and unlock a Windows Phone 8.1 mobile Phone The previous article describes how to use Qt Creator and Visual Studio to build a

Git submodule, submodule Prerequisites: 1. The project is not highly dependent and relatively simple. It should be less than five (if it is relatively large, use the repo of android) 2. Note that submodule submission must be executed in its

Uidesign common websites and uidesign Early stage: http://www.zcool.com.cn/ Medium: http://www.ui.cn/ Post: https://dribbble.com/ Website UI design Haha. It's great. It's made of Full-site FLASH.There are very few such FLASH sites. Because the

The receiving end reads data through Request. InputStream and inputstream. The receiving end reads the Request page parameters and the final string through Request. InputStream. Byte [] byts = new byte [HttpContext. Current. Request. InputStream.

Procedures for renaming iOS files and for renaming ios files Modify the class Name: 1. Double-click the selected class name in the header file: @ interface is the class name (if not selected, the rename option will be in the disable State ); 2.

Implement the brush effect (drawing in View) in android and android brush Recently, a project designed an APP to achieve the write performance with a touch screen. The traditional drawing board program can implement simple line painting program

Fragment of Android The competition project has to be connected to fragment, so I want to learn it. I think the way to learn Android is to learn and use it, what you need to learn, and remember it when you use it, for me, the better way to remember

When viewing images in android Gmail, select "share via message (MMS)". When an error is reported on the mobile phone or an error is reported on the mobile phone, the system returns to the image display page.In Packages \ apps \ mms \ src \ com \