android data storage best practices

Meituan Android resource obfuscation protection practices In the original article, Meituan Android resource obfuscation protection practices, but this article does not provide a specific obfuscation solution, but only adds a function. The function implementation process needs to be implemented by yourself, this article

//file file = new file ("Sdcard/info.txt"); /* MEDIA_CHECKING:SD card is being prepared * MEDIA_MOUNTED:SD card is already mounted and reading and writing access * media_removed: No SD card * Media_ UNKNOWN: Unrecognized SD card * MEDIA_UNMOUNTED:SD card exists but not mounted * */ if (Environment.getexternalstoragedirectory (). Equals (environment.media_mounted)) { File File = new file (Environment.getexternalstoragedirectory (), " Info2.txt "); try {

). Find a perm application.Use the top command: 1 top -m 5 -t A look is com.tianxia.test occupies 85% of the CPU, the original is this guy in mischief. The process ID is 644, which we'll use later.(2). Analysis of the application process of hair perm What's up?Need to use the Strace command under Linux, but Android is not integrated with this command, Android version:Http://b

Android storage learning: Reading and Writing files in External Storage This section describes how to read and write files in the internal storage of a mobile phone. That is how to read and write files in Sdcard. The previous logon interface is used as an example to illustrate how to read and write files in the interna

Simple practices for Android design (Message flow) The above two Articles respectively show that the design is simple and also a key practice point. The first module is divided according to the business carried by each module. It is a static description of the application. The second rational combination is a quasi-dynamic description of how each module is mobilized to jointly implement the business. Today,

fragment. Add (R.id.frame_content, TARGETF Ragment,targetfragment.getclass (). GetName ())//Add targetfragment. Commit (); } else {//if the targetfragment you want to display has been added transaction//hides the current fragment. Hide (Mcurfragment) . Show (Targetfragment)//Display targetfragment. commit (); }//update current fragment to targetfragment mcurfragment = targetfragment; } private void Switchtoabout () {switchfragment (maboutfragment); } pr

Android ListView optimization Best Practices I have a blog to teach you how to use convertView and viewHolder (static) to improve ListView freezing. However, even if convertView and viewHolder are used to load a large number of complicated la S and images in ListView, listView is stuck. This article mainly discusses how to ensure the smoothness of ListView while loading complicated list_item. The core idea

GreenDao best practices for the Android ORM Series GreenDAO Is An ORM solution that helps Android Developers quickly map Java objects to SQLite database forms. by using a simple object-oriented API, developers can store, update, delete, and query Java objects. GreenDao has two projects: one is the generator project for generating dao and model, the other is th

Simple practices for Android design (rational combination) In the previous article (simple practice of Android design (module division), we demonstrated the application store design to illustrate how to divide modules. The module division mainly depends on the business requirements, specifically what business is. The app store includes two services: displaying th

; } }/** * Exactly corresponds to match_parent or specific value * at_most corresponds to Wrap_content * in FlowLayout layout file * Android: Layout_width= "fill_parent" * android:layout_height= "wrap_content" * * if it is measurespec.exactly use the parent directly ViewGroup incoming width and height, otherwise set to calculate the width and height. */Setmeasureddimension (Modewidth = = measurespec.exactly? Sizewidth:width + getpadding

Android-file storage-text Storage [Return directory] If you want to perform file input or output operations, you need to perform stream operations. Activity Support for file operations Public FileInputStream openFileInput (String name)Set the file input stream to open Public FileOutputStream openFileOutput (String name, int mode)Set the output stream of the file

the old data that has not been downloaded can be successfully downloaded and displayed after being migrated to the new version; 5. Log On again after you exit to check whether the migration is successful; 6. Can the old data be migrated normally when the old data volume is large (a large amount of data needs to be d

VMware VSphere Key Concepts Understanding and Quick Search Handbook Some of the available references: Benefits, principles, and getting started with virtualization http://www.vmware.com/cn/virtualization/overview.html Hyper-V Overview https://technet.microsoft.com/zh-cn/library/cc816638 (v=ws.10). aspx Set up CIMC for UCS c-series Server http://www.cisco.com/c/en/us/support/docs/servers-unified-computing/ Ucs-c200-m1-high-density-rack-mount-server/111455-setup-cimc-c-s

I. Features1. Store the file in the external storage space (SD card) of the phone2. Storage of any type of file3. operation file using IO input/output stream4. File path1-SD Card root directory/android/data/package name/files/[file type], after the application uninstall, the data