如何在onClick方法上添加警報對話框？

Question

我想添加一個警報對話框來執行一個請求時有一個加載狀態。是否有可能做這樣的事情：

xButton.setOnClickListener(new View.OnClickListener() { 
    @Override 
    public void onClick(View v) { 
     xButton.setVisibility(View.INVISIBLE); 

     AlertDialog alertDialog = new AlertDialog.Builder(this).create(); 
     alertDialog.setMessage(Please wait); 
     alertDialog.show(); 

     // do some work here 
     alertdialog.dismiss 

    } 
}); 

     } 
     return view;  

預先感謝您

Answer 1

如果您沒有任何特定的原因使用警報對話框，那麼你可以使用進度對話框。

@Override 
public void onClick(View v) { 
    xButton.setVisibility(View.INVISIBLE); 

      new AsyncTask<Void, Void, Void>(){ 

        ProgressDialog mProgressDialog; 
        @Override 
        protected void onPreExecute() { 
         super.onPreExecute(); 
         mProgressDialog = new ProgressDialog(<YourActivityClassName>.this); 
         mProgressDialog.setMessage("message"); 
         mProgressDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER); 
         mProgressDialog.setCancelable(false); 
         mProgressDialog.show(); 
        } 

        @Override 
        protected Void doInBackground(Void... params) { 
         // Do your work 
         return null; 
        } 

        protected void onPostExecute(Void result) { 
         super.onPostExecute(result); 
         mProgressDialog.dismiss(); 
        }; 

       }.execute(); 


} 

Answer 2

使用一個函數來顯示警報，並從功能的onclick調用它。

public void showAlert() { 
     AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(
       mcontext); 

     // set title 
     alertDialogBuilder.setTitle("Headding"); 

     // set dialog message 
     alertDialogBuilder.setMessage("message") 
       .setCancelable(false) 
       .setPositiveButton(mcontext.getResources().getString(R.string.Ok), new DialogInterface.OnClickListener() { 
        public void onClick(DialogInterface dialog, int id) { 
//      
        } 
       }); 
     // create alert dialog 
     AlertDialog alertDialog = alertDialogBuilder.create(); 
     // show it 
     alertDialog.show(); 
    } 

Answer 3

嗨艾德里安給一個簡單的代碼希望這有助於。美好的一天...

AlertDialog.Builder alertDialog=new AlertDialog.Builder(context); 
         alertDialog.setTitle("title"); 
         alertDialog.setIcon(R.drawable.alert_image); 
         alertDialog.setMessage("alert message").setCancelable(false).setPositiveButton("Yes", new DialogInterface.OnClickListener() { 
          public void onClick(DialogInterface dialog,int id) { 
           current_activity.this.finish(); 
           Intent inlog=new Intent(current_activity.this,target_activity.class); 
           startActivity(inlog); 
          } 
         }) 
         .setNegativeButton("No", new DialogInterface.OnClickListener() { 
          public void onClick(DialogInterface dialog,int id) 
          { 
           dialog.cancel(); 
          } 
         }); 

         AlertDialog alertDialog2=alertDialog.create(); 
         alertDialog2.show();