Question

I would like to make a popup window with a textview from my widget (AppWidgetProvider), I want 2 buttons in the bottom "Update" and "Close". I tried using a AlertDialog but it crashes the widget.

AlertDialog.Builder builder = new AlertDialog.Builder(context);
            builder.setMessage("Sample text")
                   .setCancelable(false)
                   .setPositiveButton("Update", new DialogInterface.OnClickListener() {
                       public void onClick(DialogInterface dialog, int id) {
                           CallUpdate(context);
                       }
                   })
                   .setNegativeButton("Close", new DialogInterface.OnClickListener() {
                       public void onClick(DialogInterface dialog, int id) {
                            dialog.cancel();
                       }
                   });
            builder.show();

我想能够使用Spanned文本。

感谢。

Answer 1

a 申请人可以支持以下班次:

FrameLayout
LinearLayout
RelativeLayout

And the following widget classes:

AnalogClock
Button
Chronometer
ImageButton
ImageView
ProgressBar
TextView
ViewFlipper
ListView
GridView
StackView
AdapterViewFlipper

so you can not show AlertDialog from AppWidgetProvider. You can start an actvity on button click which look like a alertDialog.

用于“家庭筛查”的活动,请你看到这些职位:

植被的发射活动

如何从甲状腺检查中发起活动

Answer 2

You cannot display an AlertDialog from an AppWidgetProvider. You will need to create an Activity and use that instead, via startActivity(). You can theme the activity to look like a dialog if you so choose.

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