Android编程开发实现TextView显示表情图像和文字的方法

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" tools:context=".MainActivity" > <TextView  android:id="@+id/textview"  android:layout_width="fill_parent"  android:layout_height="wrap_content"  android:layout_margin="10dp"  android:background="#FFF" /></RelativeLayout>

package com.example.textview3;import java.lang.reflect.Field;import android.os.Bundle;import android.app.Activity;import android.graphics.Color;import android.graphics.drawable.Drawable;import android.text.Html;import android.text.Html.ImageGetter;import android.text.method.LinkMovementMethod;import android.view.Menu;import android.widget.TextView;public class MainActivity extends Activity { public int getResourceId(String name) {  try {   // 根据资源的ID的变量名获得Field的对象,使用反射机制来实现的   Field field = R.drawable.class.getField(name);   // 取得并返回资源的id的字段(静态变量)的值，使用反射机制   return Integer.parseInt(field.get(null).toString());  } catch (Exception e) {   // TODO: handle exception  }  return 0; } @Override protected void onCreate(Bundle savedInstanceState) {  super.onCreate(savedInstanceState);  setContentView(R.layout.activity_main);  TextView textView = (TextView) this.findViewById(R.id.textview);  textView.setTextColor(Color.BLACK);  textView.setBackgroundColor(Color.WHITE);  textView.setTextSize(20);// 设置字体的大小  String html = "图像1<img src='image1'/>图像2<img src='image2'/>图像3<img src='image3'/><p>";  html += "图像4<a href='http://www.baidu.com'><img src='image4'></a>图像5<img src='image5'/>";  CharSequence charSequence = Html.fromHtml(html, new ImageGetter() {   @Override   public Drawable getDrawable(String source) {    // TODO Auto-generated method stub    // 获得系统资源的信息，比如图片信息    Drawable drawable = getResources().getDrawable(      getResourceId(source));    // 第三个图片文件按照50%的比例进行压缩    if (source.equals("image3")) {     drawable.setBounds(0, 0, drawable.getIntrinsicWidth() / 2,       drawable.getIntrinsicHeight() / 2);    } else {     drawable.setBounds(0, 0, drawable.getIntrinsicWidth(),       drawable.getIntrinsicHeight());    }    return drawable;   }  }, null);  textView.setText(charSequence);  textView.setMovementMethod(LinkMovementMethod.getInstance()); } @Override public boolean onCreateOptionsMenu(Menu menu) {  // Inflate the menu; this adds items to the action bar if it is present.  getMenuInflater().inflate(R.menu.main, menu);  return true; }}