android中仿微信popwindow弹出方式

仿微信的底部弹出的相机选择方式，点击相机选择上面的按钮这个popwindow会自动消失,



<?xml version="1.0" encoding="utf-8"?>

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="fill_parent"

    android:id="@+id/main"

    android:layout_height="wrap_content"

    android:gravity="center_horizontal"

    android:orientation="vertical" >

    <LinearLayout

        android:id="@+id/pop_layout"

        android:layout_width="fill_parent"

        android:layout_height="wrap_content"

        android:layout_alignParentBottom="true"

        android:gravity="center_horizontal"

        android:orientation="vertical" >

        <Button

            android:id="@+id/btn_take_photo"

            android:layout_width="fill_parent"

            android:layout_height="50dp"

            android:layout_marginLeft="20dip"

            android:layout_marginRight="20dip"

            android:layout_marginTop="20dip"

            android:text="拍照"

            android:textStyle="bold" />

        <Button

            android:id="@+id/btn_pick_photo"

            android:layout_width="fill_parent"

            android:layout_height="50dp"

            android:layout_marginLeft="20dip"

            android:layout_marginRight="20dip"

            android:layout_marginTop="5dip"

            android:text="从相册选择"

            android:textStyle="bold" />

        <Button

            android:id="@+id/btn_cancel"

            android:layout_width="fill_parent"

            android:layout_height="50dp"

            android:layout_marginBottom="15dip"

            android:layout_marginLeft="20dip"

            android:layout_marginRight="20dip"

            android:layout_marginTop="15dip"

            android:text="取消"

            android:textColor="#ffffff"

            android:textStyle="bold" />

    </LinearLayout>

</RelativeLayout>

下面实现代码

/********************************************************************************************************************************/

public class ChoosePicPopupWindow extends PopupWindow {

private Button btn_take_photo, btn_pick_photo, btn_cancel;
private View mMenuView;

public ChoosePicPopupWindow(Activity context,OnClickListener itemsOnClick) {
super(context);
LayoutInflater inflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
mMenuView = inflater.inflate(R.layout.alert_dialog, null);
btn_take_photo = (Button) mMenuView.findViewById(R.id.btn_take_photo);
btn_pick_photo = (Button) mMenuView.findViewById(R.id.btn_pick_photo);
btn_cancel = (Button) mMenuView.findViewById(R.id.btn_cancel);
//取消按钮
btn_cancel.setOnClickListener(new OnClickListener() {

public void onClick(View v) {
//销毁弹出框
dismiss();
}
});
//设置按钮监听
btn_pick_photo.setOnClickListener(itemsOnClick);
btn_take_photo.setOnClickListener(itemsOnClick);
//设置SelectPicPopupWindow的View
this.setContentView(mMenuView);
//设置SelectPicPopupWindow弹出窗体的宽
this.setWidth(LayoutParams.FILL_PARENT);
//设置SelectPicPopupWindow弹出窗体的高
this.setHeight(LayoutParams.WRAP_CONTENT);
//设置SelectPicPopupWindow弹出窗体可点击
this.setFocusable(true);
//设置SelectPicPopupWindow弹出窗体动画效果
this.setAnimationStyle(R.style.AnimBottom);
//实例化一个ColorDrawable颜色为半透明
ColorDrawable dw = new ColorDrawable(0xb0000000);
//设置SelectPicPopupWindow弹出窗体的背景
this.setBackgroundDrawable(dw);
//mMenuView添加OnTouchListener监听判断获取触屏位置如果在选择框外面则销毁弹出框
mMenuView.setOnTouchListener(new OnTouchListener() {

public boolean onTouch(View v, MotionEvent event) {

int height = mMenuView.findViewById(R.id.pop_layout).getTop();
int y=(int) event.getY();
if(event.getAction()==MotionEvent.ACTION_UP){
if(y<height){
dismiss();
}
}
return true;
}
});

}

}