1.在有时候我们需要选择排序方式，在电视开发中往往使用一个弹出菜单实现，Demo效果：

2.核心代码：

public class MainActivity extends Activity {

private PopupWindow popupWindow;

private View contentView;

private Button btn;

//...

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

//...

createPopWindow();//初始化弹出界面

btn.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

//从底部显示

popupWindow.showAtLocation(contentView, Gravity.BOTTOM, 0, 0);

}

});

}

private void createPopWindow() {

contentView = LayoutInflater.from(MainActivity.this).inflate(R.layout.pop_window, null);

//设置弹出框的宽度和高度

popupWindow = new PopupWindow(contentView, ViewGroup.LayoutParams.MATCH_PARENT, 180);

popupWindow.setFocusable(true);// 取得焦点

//注意 要是点击外部空白处弹框消息 那么必须给弹框设置一个背景色 不然是不起作用的

popupWindow.setBackgroundDrawable(new BitmapDrawable());

//点击外部消失

popupWindow.setOutsideTouchable(true);

//设置可以点击

popupWindow.setTouchable(true);

//进入退出的动画

popupWindow.setAnimationStyle(R.style.mypopwindow_anim_style);

reMen = (Button)contentView.findViewById(R.id.reMen);

zuiXin = (Button)contentView.findViewById(R.id.zuiXin);

pingFen = (Button)contentView.findViewById(R.id.pingFen);

//是否选中的小图标

img = (ImageView)contentView.findViewById(R.id.img);

img2 = (ImageView)contentView.findViewById(R.id.img2);

img3 = (ImageView)contentView.findViewById(R.id.img3);

img2.setVisibility(View.INVISIBLE);

img3.setVisibility(View.INVISIBLE);

reMen.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

img.setVisibility(View.VISIBLE);

img2.setVisibility(View.INVISIBLE);

img3.setVisibility(View.INVISIBLE);

}

});

pingFen.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

img2.setVisibility(View.VISIBLE);

img.setVisibility(View.INVISIBLE);

img3.setVisibility(View.INVISIBLE);

}

});

zuiXin.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

img3.setVisibility(View.VISIBLE);

img2.setVisibility(View.INVISIBLE);

img.setVisibility(View.INVISIBLE);

}

});

}

}3.demo源码+apk

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