參考链接： * http://blog.csdn.net/mannver/article/details/51399151 * http://104zz.iteye.com/blog/1685389
要实现PopWindow底部的显隐
定义PopWindow要展示的布局
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@color/gray">
<TextView
android:layout_width="match_parent"
android:layout_height="40dp"
android:layout_marginBottom="2dp"
android:gravity="center"
android:text="选择图片"
android:textStyle="bold"
android:background="@color/white"/>
<TextView
android:layout_width="match_parent"
android:layout_height="40dp"
android:text="拍照片"
android:textStyle="bold"
android:gravity="center"
android:layout_marginBottom="2dp"
android:background="@color/white"/>
<TextView
android:id="@+id/textView"
android:layout_width="match_parent"
android:layout_height="40dp"
android:text="做标记"
android:textStyle="bold"
android:gravity="center"
android:layout_marginBottom="20dp"
android:background="@color/white" />
<TextView
android:id="@+id/textView1"
android:layout_width="match_parent"
android:layout_height="40dp"
android:text="取消"
android:textStyle="bold"
android:gravity="center"
android:background="@color/white" />
</LinearLayout>
PopWindow逻辑上的实现
private void initPop() {
View view = LayoutInflater.from(this).inflate(R.layout.pop, null, false);
PopupWindow popupWindow = new PopupWindow(view,
ViewGroup.LayoutParams.MATCH_PARENT,
ViewGroup.LayoutParams.WRAP_CONTENT);
//设置SelectPicPopupWindow弹出窗体可点击
popupWindow.setFocusable(true);
//设置SelectPicPopupWindow弹出窗体动画效果
//进入退出的动画
popupWindow.setAnimationStyle(R.style.mypopwindow_anim_style);
//实例化一个ColorDrawable颜色为半透明
ColorDrawable dw = new ColorDrawable(0xb0000000);
//点击外部消失
popupWindow.setOutsideTouchable(false);
//设置可以点击
popupWindow.setTouchable(true);
//设置SelectPicPopupWindow弹出窗体的背景
// popupWindow.setBackgroundDrawable(dw);
//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());、
// 注：此处的R.id.main则是最外层布局View
popupWindow.showAtLocation(MainActivity.this.findViewById(R.id.main), Gravity.BOTTOM|Gravity.CENTER_HORIZONTAL, 0, 0);
}
动画（另附）
上述代码中的 R.style.mypopwindow_anim_style
<style name="mypopwindow_anim_style">
<item name="android:windowEnterAnimation">@anim/popshow_anim</item>
<!-- 指定显示的动画xml -->
<item name="android:windowExitAnimation">@anim/pophidden_anim</item>
<!-- 指定消失的动画xml -->
</style>
@anim/popshow_anima
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
<translate
android:duration="500"
android:fromYDelta="100%p"
android:toYDelta="0" />
<alpha
android:duration="500"
android:fromAlpha="0.0"
android:toAlpha="1.0" />
</set>
紫色圆形背景
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.co/apk/res/android" android:shape="oval"
android:innerRadius="20dp" >
<size android:height="40dp" android:width="40dp" ></size>
<solid android:color="@color/purple"></solid>
</shape>
