Question

我有两个执行不同活动的Dialog。

我的查询是否可以使用单个onclicklistener来执行不同的功能？

例如：

private OnClickListener onOkClickListener = new OnClickListener()
    {
        @Override
        public void onClick(DialogInterface dialog, int which)
        {
                   if ( first dialog's ok button clicked)
                   {    
                        /*  some actions*/
                   }
                   else if ( second dialog's ok button clicked)
                   {
                        /*  some other actions*/
                   }

            }
    };

有人请帮我做这个......

Answer 1

对于这些对话框和片段以及所有...

，可以使用两个或更多按钮的单个侦听器

我已经通过一些教程找到了它。这是答案。

通过将tagName设置为那些特定的对话框或片段，我们可以区分上下文并可以重用相同的侦听器示例代码：

dialog.show(getFragmentManager(), fragment1_tag);

dialog.show(getFragmentManager(), fragment2_tag);

以下是唯一一个将被标记名称重用的侦听器。

View.onClickListener okButtonListener(new View.onClickListener{
   public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth)
   {
     if( view.getTag().equals("fragment1_tag") )
     {
        //Do operation
     }
     else if( view.getTag().equals("fragment2_tag") )
     {
        //Do operations
     }
   }
});

Answer 2

是肯定的。您可以使用。考虑这个例子......

    final DialogInterface.OnClickListener clickListener = new DialogInterface.OnClickListener() {

        @Override
        public void onClick(DialogInterface dialog, int which) {
            AlertDialog alertDialog = (AlertDialog) dialog;
            String s = (String) alertDialog.getButton(
                    DialogInterface.BUTTON_POSITIVE).getTag();
            boolean isDialog1 = s.equals("DIALOG1");
            switch (which) {
            case DialogInterface.BUTTON_NEGATIVE:
                if(isDialog1) {
                    Toast.makeText(getApplicationContext(), "Negative in Dialog1", Toast.LENGTH_SHORT).show();
                } else {
                    Toast.makeText(getApplicationContext(), "Negative in Dialog2", Toast.LENGTH_SHORT).show();
                }
                break;
            case DialogInterface.BUTTON_NEUTRAL:
                if(isDialog1) {
                    Toast.makeText(getApplicationContext(), "Neutral in Dialog1", Toast.LENGTH_SHORT).show();
                } else {
                    Toast.makeText(getApplicationContext(), "Neutral in Dialog2", Toast.LENGTH_SHORT).show();
                }
                break;
            case DialogInterface.BUTTON_POSITIVE:
                if(isDialog1) {
                    Toast.makeText(getApplicationContext(), "Positive in Dialog1", Toast.LENGTH_SHORT).show();
                } else {
                    Toast.makeText(getApplicationContext(), "Positive in Dialog2", Toast.LENGTH_SHORT).show();
                }
                break;

            default:
                break;
            }
        }
    };

button1.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
            AlertDialog.Builder builder = new AlertDialog.Builder(
                    SecondActivity.this);
            builder.setTitle("Dialog1 Title");
            builder.setMessage("Dialog1 Message");
            builder.setPositiveButton("Yes", clickListener);
            builder.setNegativeButton("No", clickListener);
            builder.setNeutralButton("Cancel", clickListener);
            AlertDialog alertDialog = builder.create();
            alertDialog.show();
            alertDialog.getButton(DialogInterface.BUTTON_POSITIVE).setTag(
                    "DIALOG1");
        }
    });

button2.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
            AlertDialog.Builder builder = new AlertDialog.Builder(
                    SecondActivity.this);
            builder.setTitle("Dialog2 Title");
            builder.setMessage("Dialog2 Message");
            builder.setPositiveButton("Yes", clickListener);
            builder.setNegativeButton("No", clickListener);
            builder.setNeutralButton("Cancel", clickListener);
            AlertDialog alertDialog = builder.create();
            alertDialog.show();
            alertDialog.getButton(DialogInterface.BUTTON_POSITIVE).setTag(
                    "DIALOG2");
        }
    });

我可以重用Dialog Interface的单个onclicklistener来获得两个不同的Alert Dialog吗？

2 个答案: