在editText中动态插入图片

最新推荐文章于 2021-01-24 12:08:04 发布
原创最新推荐文章于 2021-01-24 12:08:04 发布 · 1.3w 阅读
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CC 4.0 BY-SA版权
文章标签：
#button #string #class #null
代码如下：
package gyf.google;

import android.R.string;
import android.app.Activity;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.text.Html;
import android.text.Spannable;
import android.text.SpannableStringBuilder;
import android.text.Html.ImageGetter;
import android.text.style.ImageSpan;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;

public class test1 extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
        setContentView(R.layout.dit_text_test1);
        final EditText eText=(EditText)findViewById(R.id.test1_editText1);
         ImageGetter imageGetter = new ImageGetter() {  
                @Override
               public Drawable getDrawable(String source) {
               int id = Integer.parseInt(source);

              //根据id从资源文件中获取图片对象
               Drawable d = getResources().getDrawable(id);
               d.setBounds(0, 0, d.getIntrinsicWidth(),d.getIntrinsicHeight());
                return d;
               }
               };        
        
        
         SpannableStringBuilder sBuilder=new SpannableStringBuilder(eText.getText().toString());
         Drawable drawable=getResources().getDrawable(R.drawable.hungry_1);
         drawable.setBounds(0,0,drawable.getIntrinsicWidth(),drawable.getIntrinsicHeight());  
         ImageSpan imageSpan = new ImageSpan(drawable, ImageSpan.ALIGN_BASELINE);  
         sBuilder.setSpan(imageSpan, eText.getText().toString().length()-6,eText.getText().toString().length(), Spannable.SPAN_INCLUSIVE_EXCLUSIVE);  
         eText.setText(sBuilder);
        
         String ssString="gyflyx";
         ssString=ssString+eText.getText().toString();
         eText.setText(ssString);
        
        sBuilder=new SpannableStringBuilder(eText.getText().toString());
        drawable=getResources().getDrawable(R.drawable.bad_smelly_1);
         drawable.setBounds(0,0,drawable.getIntrinsicWidth(),drawable.getIntrinsicHeight());  
         imageSpan = new ImageSpan(drawable, ImageSpan.ALIGN_BOTTOM);  
         sBuilder.setSpan(imageSpan, 0, 1, Spannable.SPAN_INCLUSIVE_EXCLUSIVE);  
         eText.setText(sBuilder);
        
        
         eText.append(Html.fromHtml("<img src='"+R.drawable.byebye+"'/>", imageGetter, null));
        
         //////////////////////////////////////////获取光标位置并插入
         Button button=(Button)findViewById(R.id.test1_button1);
         final EditText eText2=(EditText)findViewById(R.id.test1_editText2);
         button.setOnClickListener(new OnClickListener() {
            
            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                SpannableStringBuilder sBuilder=new SpannableStringBuilder(eText2.getText().toString());
                 Drawable drawable=getResources().getDrawable(R.drawable.hungry_1);
                 drawable.setBounds(0,0,drawable.getIntrinsicWidth(),drawable.getIntrinsicHeight());  
                 ImageSpan imageSpan = new ImageSpan(drawable, ImageSpan.ALIGN_BASELINE);  
                 sBuilder.setSpan(imageSpan,0,eText2.getText().toString().length(), Spannable.SPAN_EXCLUSIVE_INCLUSIVE);  
                 //eText.setText(sBuilder);
                
                
                
                int nowLocation=eText.getSelectionStart();
                eText.getText().insert(nowLocation, sBuilder);
            }
        });



    }

}