android TextView文字换行内容末尾跟图标或其他View的实现

本文主要是介绍android TextView文字换行内容末尾跟图标或其他View的实现，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

效果如下

在这里插入图片描述

	import android.content.Context;import android.text.Layout;import android.text.StaticLayout;import android.text.TextPaint;import android.util.AttributeSet;import android.view.View;import android.view.ViewGroup;import android.widget.TextView;public class CustomLayout extends ViewGroup {//单行显示private static final int SINGLE_LINE = 0x01;//多行显示private static final int MULTI_LINE = 0x02;//显示到下一行private static final int NEXT_LINE = 0x03;//显示样式private int type;//绘制文字最后一行的顶部坐标private int lastLineTop;//绘制文字最后一行的右边坐标private float lastLineRight;public CustomLayout(Context context) {super(context);}public CustomLayout(Context context, AttributeSet attrs) {super(context, attrs);}public CustomLayout(Context context, AttributeSet attrs, int defStyleAttr) {super(context, attrs, defStyleAttr);}@Overrideprotected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {int childCount = getChildCount();int w = MeasureSpec.getSize(widthMeasureSpec);if (childCount == 2) {TextView tv = null;if(getChildAt(0) instanceof  TextView){tv = (TextView) getChildAt(0);initTextParams(tv.getText(), tv.getMeasuredWidth(), tv.getPaint());}else{throw new RuntimeException("CustomLayout first child view not a TextView");}View sencodView = getChildAt(1);//测量子view的宽高measureChildren(widthMeasureSpec, heightMeasureSpec);//两个子view宽度相加小于该控件宽度的时候if (tv.getMeasuredWidth() + sencodView.getMeasuredWidth() <= w) {int width = tv.getMeasuredWidth()+sencodView.getMeasuredWidth();//计算高度int height = Math.max(tv.getMeasuredHeight(), sencodView.getMeasuredHeight());//设置该viewgroup的宽高setMeasuredDimension(width, height);type = SINGLE_LINE;return;}if (getChildAt(0) instanceof TextView) {//最后一行文字的宽度加上第二个view的宽度大于viewgroup宽度时第二个控件换行显示if (lastLineRight + sencodView.getMeasuredWidth() > w) {setMeasuredDimension(tv.getMeasuredWidth(), tv.getMeasuredHeight() + sencodView.getMeasuredHeight());type = NEXT_LINE;return;}int height = Math.max(tv.getMeasuredHeight(), lastLineTop + sencodView.getMeasuredHeight());setMeasuredDimension(tv.getMeasuredWidth(), height);type = MULTI_LINE;}} else {throw new RuntimeException("CustomLayout child count must is 2");}}@Overrideprotected void onLayout(boolean changed, int l, int t, int r, int b) {if (type == SINGLE_LINE || type == MULTI_LINE) {TextView tv = (TextView) getChildAt(0);View v1 = getChildAt(1);//设置第二个view在Textview文字末尾位置tv.layout(0, 0, tv.getMeasuredWidth(), tv.getMeasuredHeight());int left = (int) lastLineRight;int top  = lastLineTop;//最后一行的高度 注:通过staticLayout得到的行高不准确故采用这种方式int lastLineHeight = tv.getBottom()-tv.getPaddingBottom() -lastLineTop;//当第二view高度小于单行文字高度时竖直居中显示if(v1.getMeasuredHeight() < lastLineHeight){top = lastLineTop + (lastLineHeight - v1.getMeasuredHeight())/2;}v1.layout(left, top, left + v1.getMeasuredWidth(), top+v1.getMeasuredHeight());} else if (type == NEXT_LINE) {View v0 = getChildAt(0);View v1 = getChildAt(1);//设置第二个view换行显示v0.layout(0, 0, v0.getMeasuredWidth(), v0.getMeasuredHeight());v1.layout(0, v0.getMeasuredHeight(), v1.getMeasuredWidth(), v0.getMeasuredHeight() + v1.getMeasuredHeight());}}/*** 得到Textview绘制文字的基本信息* @param text Textview的文字内容* @param maxWidth Textview的宽度* @param paint 绘制文字的paint*/private void initTextParams(CharSequence text, int maxWidth, TextPaint paint) {StaticLayout staticLayout = new StaticLayout(text, paint, maxWidth, Layout.Alignment.ALIGN_NORMAL, 1.0f, 0.0f, false);int lineCount = staticLayout.getLineCount();lastLineTop = staticLayout.getLineTop(lineCount - 1);lastLineRight = staticLayout.getLineRight(lineCount - 1);}}