java - 警报对话框中的可单击文本链接以打开活动

Question

我希望我的警报对话框中的一个文字是可点击的，并在点击时打开一个活动。

我尝试在 SpannableString 中使用 ClickableSpan，但根本无法识别单击...

public class TestDialog extends AppCompatDialogFragment {

    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {
        String text = "This is a test message.";

        SpannableString ss = new SpannableString(text);

        ClickableSpan cs = new ClickableSpan() {
            @Override
            public void onClick(@NonNull View view) {
                System.out.println("Test");
            }
        };

        ss.setSpan(cs, 10, 14, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);

        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
        builder.setMessage(ss)
                .setTitle("Test Title")
                .setPositiveButton("Ok!", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialogInterface, int i) {
                        // do something
                    }
                })
                .setNegativeButton("No!", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialogInterface, int i) {
                        // do something
                    }
                });

        return builder.create();
    }
}

谢谢你的帮助！

标签： javaandroidandroid-activitydialogandroid-alertdialog

Answer 1

好的，我在这里的其他几篇文章和 youtube 视频的帮助下做到了。我使用自定义布局显示文本和可点击的跨度，然后我在警报对话框中显示：

public class TestDialog extends AppCompatDialogFragment {
    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {
        String text = "This is a test message.";

        SpannableString ss = new SpannableString(text);

        ClickableSpan cs = new ClickableSpan() {
            @Override
            public void onClick(@NonNull View view) {
                Intent testIntent = new Intent(getContext(), Test.class);
                getContext().startActivity(testIntent);
            }
        };

        ss.setSpan(cs, 10, 14, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);

        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
        LayoutInflater inflater = getActivity().getLayoutInflater();
        View view = inflater.inflate(R.layout.test_view, null);

        TextView message = (TextView) view.findViewById(R.id.textView);
        message.setMovementMethod(LinkMovementMethod.getInstance());
        message.setText(ss);

        builder.setView(view)
                .setTitle("Test Title")
                .setPositiveButton("Ok!", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialogInterface, int i) {
                        // do something
                    }
                })
                .setNegativeButton("No!", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialogInterface, int i) {
                        // do something
                    }
                });

        return builder.create();
    }
}

我希望我也能帮助你。