如何在textview android上设置多次单击

Question

我想在textview上设置多次单击.我看到很多答案,但任何答案都无法帮助我.我使用这段代码制作跨区字符串: -

  private SpannableStringBuilder addClickablePart(String str) {
    SpannableStringBuilder ssb = new SpannableStringBuilder(Html.fromHtml(deafultSpna + feelingSpan+tagfriendspan));
    ssb.setSpan(new ClickableSpan() {

        @Override
        public void onClick(View widget) {
            Toast.makeText(AddPostActivity.this, "hello click",
                    Toast.LENGTH_SHORT).show();
        }
    }, 0, Html.fromHtml(deafultSpna).length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
    ssb.setSpan(new ClickableSpan() {

        @Override
        public void onClick(View widget) {
            Toast.makeText(AddPostActivity.this, "hello click ffff",
                    Toast.LENGTH_SHORT).show();
        }
    }, Html.fromHtml(deafultSpna).length(), Html.fromHtml(deafultSpna+feelingSpan).length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
    ssb.setSpan(new ClickableSpan() {

        @Override
        public void onClick(View widget) {
            Toast.makeText(AddPostActivity.this, "hello click ffff fdsfds",
                    Toast.LENGTH_SHORT).show();
        }
    }, Html.fromHtml(deafultSpna+feelingSpan).length(), Html.fromHtml(deafultSpna+feelingSpan+tagfriendspan).length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
    return ssb;
}

但使用此代码我发现像这样的观点: -

但我想这样: -

我使用此代码进行跨越feelingSpan = "<font color=#414141> - Feeling </font><font color=#bd2436>" + feeling_name + "</font>";

任何人都可以帮我解决这个问题.提前致谢.

Answer 1

为了让事情更简单，我们可以先定义一个小类，它会使可点击的跨度变为红色，并在点击时显示相应的消息。

private class MyClickableSpan extends ClickableSpan {
    String text;

    MyClickableSpan(String text) {
        this.text = text;
    }

    @Override
    public void updateDrawState(TextPaint ds) {
        ds.setUnderlineText(false); // get rid of underlining
        ds.setColor(Color.RED);     // make links red
    }

    @Override
    public void onClick(View view) {
        Toast.makeText(view.getContext(), text, Toast.LENGTH_SHORT).show();
    }
}

接下来，我们可以添加一个小的便捷方法来创建可点击的跨度。

private void addClickableText(SpannableStringBuilder ssb, int startPos, String clickableText, String toastText) {
    ssb.append(clickableText);
    ssb.setSpan(new MyClickableSpan(toastText), startPos, ssb.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
}

最后，我们可以填充可生成的字符串并显示它。

    TextView text = findViewById(R.id.text);

    SpannableStringBuilder ssb = new SpannableStringBuilder("");
    addClickableText(ssb, ssb.length(), "Abhishek Nagar", "hello click");
    ssb.append(" - Feeling ");
    addClickableText(ssb, ssb.length(), "Sad", "hello click ffff");
    ssb.append(" with ");
    addClickableText(ssb, ssb.length(), "Anand Jainb", "hello click ffff fdsfds");

    text.setMovementMethod(LinkMovementMethod.getInstance());   // make our spans selectable
    text.setText(ssb);

这就是全部！