TextView实现部分点击+不同字体颜色

这里写图片描述

1 Requirement

实现文本不同颜色,部分区域可以点击

2 Theory

(1)TextView设置SpannableString
(2)ForegroundColorSpan设置字体颜色
(3)ClickableSpan 设置点击, ds.setUnderlineText(false);取消自带下划线

3 CoreCode

  private View.OnClickListener clickListener = new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Toast.makeText(PartiallyClickableActivity.this, "点击成功....【我的理财】", Toast.LENGTH_SHORT).show();
        }
    };
    //step2 定义ClickableSpan
    class Clickable extends ClickableSpan {
        private final View.OnClickListener mListener;

        public Clickable(View.OnClickListener l) {
            mListener = l;
        }


        @Override
        public void onClick(View v) {
            mListener.onClick(v);
        }

        @Override
        public void updateDrawState(TextPaint ds) {
            //取消下滑线
            ds.setUnderlineText(false);
//super.updateDrawState(ds);
        }
    }   
onCreate{

         tv = (TextView) findViewById(R.id.tv);
        //step1 设置点击背景色为透明
        tv.setHighlightColor(getResources().getColor(android.R.color.transparent));
        String st1 = "产品成立、计息并进封入闭期。购买成功后1-2个交易日可通过";
        String st2 = "【我的理财】";

        //step3 设置SpannableString
        SpannableString info = new SpannableString(st1 + st2 );
        info.setSpan(new ForegroundColorSpan(Color.BLACK), 0, st1.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
        info.setSpan(new ForegroundColorSpan(Color.RED), st1.length(), (st1 + st2).length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
        info.setSpan(new Clickable(clickListener), st1.length(), (st1 + st2).length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE | ~Spanned.SPAN_MARK_MARK);

        //step4 TextView设置SpannableString
        tv.setText(info);
        tv.setMovementMethod(LinkMovementMethod.getInstance());
    }   

四 Demo

PartiallyClickableActivity

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转载自blog.csdn.net/baopengjian/article/details/79864620