offline data synchronization in android

member of Awesomeplayer, Audioplayer drives the acquisition of data through callback, and Awesomeplayer is driven by videoevent. There is a common denominator, that is, data acquisition is abstracted into Msource->read () to complete, and read inside the parse and decode tied together. Stagefright AV Synchronization section, audio is completely callback drive

I. Preface: Recently, the task has been completed temporarily. There is one or two days of idle time. Therefore, I want to sort out the android contact to facilitate myself later. All database tables of Android contact have contacts2.db (Path:/data/COM. Android. providers. Contacts/databases/contacts2.db), It is ca

, be careful about blocking the problem. Here you can use callback snooping to implement asynchronous waits:Pendingresult.setresultcallback (new resultcallback() { @Override publicvoid onresult (final dataitemresult result) { if( Result.getstatus (). Issuccess ()) { "" + Result.getdataitem (). GetURI ());}} );synchronously waiting-synchronous waitIf you perform data operations in a separate background service process, you

do not need to be saved for a long time between Activity and Servier, you can use the following methods: (1) through the Application class, each Android Application has an Application class. When you set a name for the Application in AndroidManifest. xml of the program, your program must have a subclass of Application. This Application subclass is automatically instantiated by Android and is a family-class

above GitHub source code, there is a test project, Hslcommunicationdemo, which contains a variety of client-side demo project, do not need to write any code to test the data access.is:hslcommunicationdemo.zipDemo project (C # server +asp.net + C # client + Android Client)The following three shows how to access the data of the PLC, we usually need to process afte

We know that in Android, the easiest way to save simple data is to use sharedpreferences, however, although sharedpreferences can be set up to share data between processes, it is not reliable (and, more deadly, Different levels of application cannot be shared using sharedpreferences, for example, a normal app cannot read sharedpreferences

In the previous note, we wrote our own provider. In this note, we will access the data through the URI interface of the content provider and rewrite the example in the android learning note (step 4. Here we do not fully describe how to write the relevant UI. You can go to the Notes (step 4) To View Details, focusing on how to implement data access. Read Informati

Some editable views will be used during Android development, or some functions that need to be automatically updated as data changes. Most of these views require data synchronization to update the display of views. In addition, the data type is complex, so it is not suitable

. listener. onSharedPreferenceChanged (SharedPreferencesImpl. this, key ); By default, we have not rewritten the onSharedPreferenceChanged method, which is implemented by Android itself. However, it can be determined that the commit method involves synchronization, traversal, and other operations, which are time-consuming.Therefore, reducing the number of commit operations is a matter of optimization. Concl

Bluetooth technology in the smart hardware has a lot to play, today I will share with you the Bluetooth in the Android system of the use of techniques, and to achieve the two data transmission between terminals. Bluetooth is a short-range wireless communication technology standard, Bluetooth protocol is divided into 4 layers, namely core protocol layer, cable replacement protocol layer, telephone control p

are stored in external storage, but all private user data, databases, optimized. dex files, and extracted local code are stored in built-in storage. 3. the installed container of your application uses a random key for encryption and can only be decrypted by the device where the application is installed. This ensures that only one identical application is available on an sdcard. 4. You can move your application to built-in storage through system setti

The company is working on a project to record user behavior and write behavior log files to the SD card.The idea of implementation does not affect the user experience on the interface. Logs must be recorded from time to time and cannot be missed. 1. Concurrent log processing write a class is responsible for managing the log data transmitted by each thread. The log data is placed in the queue and waiting for