发布更改通知进度条

Question

我有一个包含进度条的通知。进度条更新代码运行在一个service.Code低于

notificationManager.notify(42, notification); 

while((count = inputStream.read(data)) != -1) 
{ 
    //new 
    downloadProgress += count; 
    outputStream.write(data,0,count); 
    //new 
    notification.contentView.setProgressBar(R.id.status_progress, contentLength, downloadProgress, false); 
    notificationManager.notify(42, notification); 
} 

我米面对是因为notificatoinManager.notify()方法被称为在从流读出的数据之间的问题，它减慢了复制过程。

我该如何解决这个问题？

Answer 1

你也许可以使用的AsyncTask从实际读数独立出来UI更新

public class ReadFile extends AsyncTask<Void, Integer, String> { 
@Override 
protected String doInBackground(Void... params) {  
//Do the reading here 
downloadProgress += count;  
outputStream.write(data,0,count); 
publishProgress(downloadProgress); 
} 
@Override 
protected void onProgressUpdate(Integer... progress) { 
notification.contentView.setProgressBar(R.id.status_progress, contentLength, downloadProgress, false);  
notificationManager.notify(42, notification);    
} 

希望这有助于！