直接上代码:
package com.example.pengliu.textandimageshowdemo; import android.graphics.drawable.Drawable; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.text.Spannable; import android.text.SpannableString; import android.text.style.ImageSpan; import android.widget.TextView; public class MainActivity extends AppCompatActivity { private TextView textView; private String[] str = { "这是图片", "http://i.imgur.com/DvpvklR.png" }; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); textView=findViewById(R.id.textView); //需要处理的文本,[image]是需要被替代的文本 String TMInfo="图片标签普吉\r\n[image1]\r\n阿赛克\r\n[image2]\r\n...\r\n[image3]\r\n"; int imagecount=getImageNum(TMInfo); SpannableString spannable = new SpannableString(TMInfo); for (int i=1;i<=imagecount;i++){ Drawable drawable = getResources().getDrawable(R.mipmap.ic_launcher); drawable.setBounds(0, 0, drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight()); //要让图片替代指定的文字就要用ImageSpan ImageSpan span = new ImageSpan(drawable, ImageSpan.ALIGN_BASELINE); int replaceStartIndex=TMInfo.indexOf("[image"+i+"]"); //开始替换,注意第2和第3个参数表示从哪里开始替换到哪里替换结束(start和end) //最后一个参数类似数学中的集合,[5,12)表示从5到12,包括5但不包括12 spannable.setSpan(span, replaceStartIndex,replaceStartIndex+String.valueOf("[image"+i+"]").length() , Spannable.SPAN_INCLUSIVE_EXCLUSIVE); textView.setText(spannable); } } private int getImageNum(String TMInfo){ String[] tmInfos=TMInfo.split("image"); return tmInfos.length-1; } }
显示效果如下: