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在Button任意位置加图片效果

博客分类： android动画&效果
android
通常情况会想到drawableLeft，drawableTop,drawableRight,drawableBotton，这样是可以做，但只能在四个位置。
下面这种办法可以实现任意位置：

import android.app.Activity;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.text.Html;
import android.text.Spanned;
import android.text.Html.ImageGetter;
import android.widget.Button;

public class demobutton extends Activity {
/* Called when the activity is first created. /
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);

            ImageGetter imgGetter = new Html.ImageGetter() {                      @Override                      public Drawable getDrawable(String source) {                              Drawable drawable = null;                              drawable = demobutton.this.getResources().getDrawable(                                              Integer.parseInt(source));                              drawable.setBounds(0, 0, drawable.getIntrinsicWidth(),                                              drawable.getIntrinsicHeight());                              return drawable;                      }              };              Button btn = (Button) findViewById(R.id.button1);              StringBuffer sb = new StringBuffer();              sb.append("<img src=\"").append(R.drawable.button1).append("\"/>").append("<font color=\"6f6f6f\">按钮上加图片效果</font>");;              Spanned span = Html.fromHtml(sb.toString(), imgGetter, null);              btn.setText(span);              sb = null;  }  

}