其實(shí)一開(kāi)始我是反感這種需求的，因?yàn)槭忻嫔弦矝](méi)這樣的例子吧(當(dāng)時(shí)對(duì)比過(guò)馬蜂窩肠套、飛豬舰涌、美團(tuán)，他們都沒(méi)采用這種方式)你稚？一般后面的標(biāo)簽都會(huì)另起一行單獨(dú)給位置瓷耙，不會(huì)拼接到TextView后面。但是在這之前已經(jīng)實(shí)現(xiàn)了類似的需求（見(jiàn)android在TextView后添加view實(shí)現(xiàn)展開(kāi)收起查看更多）刁赖，我也就沒(méi)糾結(jié)太多搁痛，直接開(kāi)干，反正也費(fèi)不了多少時(shí)間宇弛。效果如下：

單行效果

多行的效果

import android.content.Context;
import android.graphics.Color;
import android.text.Layout;
import android.util.AttributeSet;
import android.view.ViewGroup;
import android.view.ViewTreeObserver;
import android.widget.FrameLayout;
import android.widget.TextView;

import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.core.content.ContextCompat;

/**
 * 在文本后面拼接一個(gè)view
 *
 * @author ly
 * date 2020/3/9 10:22
 */
public class AppendViewAfterTextView extends FrameLayout implements ViewTreeObserver.OnGlobalLayoutListener {

    private BoldTextView tv;
    private TextView tvSpecial;
    private String text;
    private FrameLayout.LayoutParams paramsSpecial;
    private int space;

    public AppendViewAfterTextView(@NonNull Context context) {
        super(context);
        init();
    }

    public AppendViewAfterTextView(@NonNull Context context, @Nullable AttributeSet attrs) {
        super(context, attrs);
        init();
    }

    public AppendViewAfterTextView(@NonNull Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        init();
    }

    private void init() {
        space = PixelUtil.dp2px(5);

        tv = new BoldTextView(getContext());
        tv.setTextSize(21);
        tv.setLineSpacing(1.0f, 1.2f);
        tv.setIncludeFontPadding(false);
        setTextColor(ContextCompat.getColor(getContext(), R.color.black_text1));

        tvSpecial = new TextView(getContext());
        tvSpecial.setBackgroundResource(R.drawable.scenic_level_shape);
        tvSpecial.setTextSize(12);
        tvSpecial.setSingleLine();
        tvSpecial.setTextColor(Color.WHITE);

        paramsSpecial = new FrameLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
        tvSpecial.setLayoutParams(paramsSpecial);

        addView(tv, new LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT));
        addView(tvSpecial);
    }

    @Override
    public void onGlobalLayout() {
        //為保證TextView.getLayout()!=null，在這里再執(zhí)行相關(guān)邏輯
        setMoreViewPosition();
        //記得移除症汹，不然會(huì)一直回調(diào)
        tv.getViewTreeObserver().removeOnGlobalLayoutListener(this);
    }

    private void setMoreViewPosition() {
        Layout layout = tv.getLayout();
        if (layout == null)
            return;
        int lineCount = layout.getLineCount();
        float lineWidth = layout.getLineWidth(lineCount - 1);

        //獲取最后行最后一個(gè)字符的下標(biāo)
        int lineEnd = layout.getLineEnd(lineCount - 1);
        if (lineWidth + tvSpecial.getMeasuredWidth() + space - (getWidth() - getPaddingRight() - getPaddingLeft()) > 0) {//最后一行顯示不下硫朦，將最后一行換行
            if (text.length() > 2) {
                //分兩個(gè)字符到tvSpecial那一行，更協(xié)調(diào)
                text = text.subSequence(0, text.length() - 2) + "\n" + text.subSequence(text.length() - 2, text.length());
                setText(text);
                return;//setText會(huì)重新觸發(fā)onGlobalLayout
            }
        }
//        int lineH = layout.getLineBottom(lineCount - 1) - layout.getLineTop(lineCount - 1);
        int lineH = layout.getHeight() / layout.getLineCount();
        int lastLineRight = (int) layout.getSecondaryHorizontal(lineEnd);
        paramsSpecial.leftMargin = lastLineRight + space;
        //tvSpecial的中間和tv最后一行的中間上下對(duì)齊
        paramsSpecial.topMargin = layout.getHeight() - tv.getPaddingBottom() - lineH / 2 - tvSpecial.getHeight() / 2;
        tvSpecial.setLayoutParams(paramsSpecial);
    }

    public void setText(final String text) {
        this.text = text;
        tv.setText(this.text);
        tv.getViewTreeObserver().addOnGlobalLayoutListener(this);
    }

    public void setSpecialViewText(String text) {
        tvSpecial.setText(text);
    }

    public void setTextColor(int color) {
        tv.setTextColor(color);
    }
}

上述代碼的關(guān)鍵呢就是通過(guò)獲取文本TextView的最后一個(gè)字符的x坐標(biāo)來(lái)得到leftMargin以及通過(guò)高度差來(lái)得到topMargin背镇。獲取leftMargin的時(shí)候用到一個(gè)方法：getSecondaryHorizontal咬展，它是指獲取TextView的某個(gè)字符右邊的x坐標(biāo)。通過(guò)setText和setSpecialViewText暴露給外部瞒斩，分別設(shè)置這倆的文本即可破婆。通過(guò)該方式還能拓展出長(zhǎng)文本的查看更多及收起
到現(xiàn)在看這個(gè)需求，其實(shí)也還挺好的胸囱，沒(méi)那么惡心了祷舀，算是造了個(gè)小輪子。

//都看到這兒了，給個(gè)贊再走唄~