Question

此异步任务在我调用时需要花费很长时间，但是任务很短，当我直接放置代码时它可以正常工作，但是当我使用异步任务需要花费时间时，我已经从该站点找到了解决方案，
Progress dialog async task taking longer time than expected 但无法正常工作，

public class Towing_TaskCollectAmountCash extends AsyncTask<Double,Void,Void>{

private ProgressDialog progressDialog;
Activity activity;


public Towing_TaskCollectAmountCash(Activity activity,Double collectedAmount) {
    this.activity = activity;
    this.collectedAmount=collectedAmount;
    progressDialog=new ProgressDialog(activity);
}

//progress Dialog Showing
@Override
protected void onPreExecute() {
    progressDialog.setTitle("Please Wait...");
    progressDialog.setCancelable(false);
    progressDialog.setIndeterminate ( true ) ;
    progressDialog.show();
}
@Override
protected Void doInBackground(Double... amount){
     referenceOfDriverWallets=FirebaseDatabase.getInstance().getReference().child("Wallet").child("Drivers").child(FirebaseAuth.getInstance().getCurrentUser().getUid());
     referenceOfDriverWallets.addListenerForSingleValueEvent(new ValueEventListener({
        @Override
        public void onDataChange(DataSnapshot dataSnapshot){
          if(dataSnapshot.child("TotalRideCollection").exists()){
              totalRideCollection= Double.valueOf(dataSnapshot.child("TotalRideCollection").getValue().toString());
            }
        }

         @Override
        public void onCancelled(DatabaseError databaseError) {
        }
});}

//Progress Dialog dismiss
@Override
protected void onPostExecute(Void aVoid) {
    progressDialog.dismiss();
}

}

这是MainActivity的主要调用代码

Towing_TaskCollectAmountCash obj=new 
Towing_TaskCollectAmountCash(CollectPayment.this,collectedAmount);
obj.execute();

请帮助我，在此先感谢

Answer 1

尝试这样的事情：

为ProgressDialog

创建一个类实例

private ProgressDialog progressDialog = null;

现在，用于Firebase调用的简单方法是

private Void getData(){
    if(progressDialog == null){
        progressDialog = new ProgressDialog(context);
        progressDialog.setTitle("Please Wait...");
        progressDialog.setCancelable(false);
        progressDialog.setIndeterminate ( true ) ;
    }
    progressDialog.show();

     referenceOfDriverWallets=FirebaseDatabase.getInstance().getReference().child("Wallet").child("Drivers").child(FirebaseAuth.getInstance().getCurrentUser().getUid());
     referenceOfDriverWallets.addListenerForSingleValueEvent(new ValueEventListener({
        @Override
        public void onDataChange(DataSnapshot dataSnapshot){
          if(dataSnapshot.child("TotalRideCollection").exists()){
              totalRideCollection= Double.valueOf(dataSnapshot.child("TotalRideCollection").getValue().toString());

              progressDialog.dismiss();
            }
        }

         @Override
        public void onCancelled(DatabaseError databaseError) {
            progressDialog.dismiss();
        }
    });
}

如果您是从Activity内部调用的，则上下文可能是：

YourActivity.this

您似乎没有使用collectedAmount参数。

注意：

我尚未检查用于查询Firebase的代码。我只是假设它已经奏效了。

异步任务进度对话框需要很长时间才能在Android中完成简单任务

1 个答案: