Android-Optimizing UI Performance (1)-reduces the blocking time of the main thread

android-Optimizing UI Performance (1)-reduces the blocking time of the main thread
one reduces the blocking time of the main thread
Android has provided a way to implement Asynctask to generate new asynchronous tasks from the main thread.
Define and implement the following classes (methods are automatically called by the system):

 Public  class downloadfilesasynctask extends asynctask<URL,  Integer,Long>{    /* (non-javadoc) * Background execution function * @see android.os.asynctask#doinbackground (params[]) */@OverrideprotectedLong doinbackground (URL ... arg0) {//TODO auto-generated method stub        return NULL; }//Execute after background thread finishes@Overrideprotected voidOnPostExecute (Long result) {//TODO auto-generated method stub}//execute before background thread starts@Overrideprotected voidOnPreExecute () {//TODO auto-generated method stub        Super. OnPreExecute (); }//Set progress updates, such as setting a displayed progress bar@Overrideprotected voidOnprogressupdate (integer ... values) {//TODO auto-generated method stub}

By an asynchronous task, you can reduce the blocking time of the main thread

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Android-Optimizing UI Performance (1)-reduces the blocking time of the main thread