RadioGroup音乐按钮工具条

来源：互联网发布：java中强制类型转换编辑：程序博客网时间：2024/06/07 00:02

xml文件：

<RadioGroup android:id="@+id/MusicList_RadioGroup"                android:orientation="horizontal" android:layout_alignParentBottom="true"                android:layout_width="match_parent" android:layout_height="wrap_content"                android:padding="2.0dip"                android:background="@drawable/radiogroup_bg"                >               <RadioButton android:id="@+id/MusicList_RadioGroup_next"                      android:drawableLeft="@drawable/radiogroup_next"                     android:text="@string/Text_radiogroup_next"                     android:textSize="15.0dip"                     android:layout_weight="1.0" android:button="@null"                     android:layout_width="wrap_content" android:layout_height="wrap_content"                     />                <RadioButton android:id="@+id/MusicList_RadioGroup_playAndpuse"                      android:drawableLeft="@drawable/radiogroup_play"                     android:text="@string/Text_radiogroup_play"                     android:textSize="15.0dip"                     android:layout_weight="1.0" android:button="@null"                     android:layout_width="wrap_content" android:layout_height="wrap_content"                     />                        <RadioButton android:id="@+id/MusicList_RadioGroup_previous"                      android:drawableLeft="@drawable/radiogroup_previous"                     android:text="@string/Text_radiogroup_previous"                     android:textSize="15.0dip"                     android:layout_weight="1.0" android:button="@null"                      android:layout_width="wrap_content" android:layout_height="wrap_content"                     />                </RadioGroup>

绑定监听事件：

 //绑定监听器        MusicListTable_RadioGroup.setOnCheckedChangeListener(new OnCheckedChangeListener(){            public void onCheckedChanged(RadioGroup arg0, int rid) {                switch(rid)                {                    case R.id.MusicList_RadioGroup_next://下一首                        break;                    case R.id.MusicList_RadioGroup_previous://上一首                        break;                    case R.id.MusicList_RadioGroup_playAndpuse://播放或暂停                        if(isPlaying)                        {                            Drawable dr= res.getDrawable(R.drawable.radiogroup_play);                            //setBounds如果不设置的话setCompoundDrawables就会没有图片显示出来，所以一定要设置一次                            dr.setBounds(0, 0, dr.getMinimumWidth(), dr.getMinimumHeight());                            palyAndpuse.setCompoundDrawables(dr, null,null, null);//为RadioButton设置图片，左右上下对应xml的android:drawableLeft="@drawable/XXX"                            isPlaying=false;                         }                        else                        {                            Drawable dr= res.getDrawable(R.drawable.radiogroup_puse);                            dr.setBounds(0, 0, dr.getMinimumWidth(), dr.getMinimumHeight());                            palyAndpuse.setCompoundDrawables(dr, null,null, null);                            isPlaying=true;                                         }                        arg0.clearCheck();//清除选择，如果不清除的话不能重复选择同一个Radiobutton                        break;                }                            }});    }

效果：