EditTextFaceActivity .java

package cn.face;import java.lang.reflect.Field;  //reflect 反射import java.util.Random;import android.app.Activity;import android.graphics.Bitmap;import android.graphics.BitmapFactory;import android.graphics.drawable.BitmapDrawable;import android.os.Bundle;import android.text.Spannable;import android.text.SpannableString;import android.text.style.ImageSpan;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;import android.widget.EditText;public class EditTextFaceActivity extends Activity {	private EditText et_chat;	private  Button bt_insetFace;		public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);        et_chat = (EditText)findViewById(R.id.et_chat);        bt_insetFace = (Button)findViewById(R.id.bt_insetFace);        bt_insetFace.setOnClickListener(new OnClickListener() {						public void onClick(View v) {				int randomId = 1+ new Random().nextInt(20);				try{					Field field = R.drawable.class.getDeclaredField("face" + randomId);					int resourceId = Integer.parseInt(field.get(null).toString());					//在android中显示图片信息，必须使用Bitmap位图对象来装载					Bitmap bitmap = BitmapFactory.decodeResource(							getResources(), resourceId);					ImageSpan imageSpan = new ImageSpan(EditTextFaceActivity.this,bitmap);					SpannableString spannableString = new SpannableString("face"); //表情图片前缀为"face"					spannableString.setSpan(imageSpan, 0, 4,							Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);					et_chat.append(spannableString);				}catch(Exception e){									}			}		});        	}				}

　　

 

 

 

 

看实现图片