Android PopupWindow增加半透明蒙层

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先看效果图：

BasePopupWindowWithMask.class

package com.example.popupwindowwithmask; import android.content.Context;
import android.graphics.PixelFormat;
import android.graphics.drawable.ColorDrawable;
import android.os.IBinder;
import android.view.KeyEvent;
import android.view.View;
import android.view.WindowManager;
import android.widget.PopupWindow; /**
* Created by kk on 2017/7/22.
*/ public abstract class BasePopupWindowWithMask extends PopupWindow {
protected Context context;
private WindowManager windowManager;
private View maskView; public BasePopupWindowWithMask(Context context) {
super(context);
this.context = context;
windowManager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
setContentView(initContentView());
setHeight(initHeight());
setWidth(initWidth());
setOutsideTouchable(true);
setFocusable(true);
setTouchable(true);
setBackgroundDrawable(new ColorDrawable());
} protected abstract View initContentView(); protected abstract int initHeight(); protected abstract int initWidth(); @Override
public void showAsDropDown(View anchor) {
addMask(anchor.getWindowToken());
super.showAsDropDown(anchor);
} private void addMask(IBinder token) {
WindowManager.LayoutParams wl = new WindowManager.LayoutParams();
wl.width = WindowManager.LayoutParams.MATCH_PARENT;
wl.height = WindowManager.LayoutParams.MATCH_PARENT;
wl.format = PixelFormat.TRANSLUCENT;//不设置这个弹出框的透明遮罩显示为黑色
wl.type = WindowManager.LayoutParams.TYPE_APPLICATION_PANEL;//该Type描述的是形成的窗口的层级关系
wl.token = token;//获取当前Activity中的View中的token,来依附Activity
maskView = new View(context);
maskView.setBackgroundColor(0x7f000000);
maskView.setFitsSystemWindows(false);
maskView.setOnKeyListener(new View.OnKeyListener() {
@Override
public boolean onKey(View v, int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_BACK) {
removeMask();
return true;
}
return false;
}
});
/**
* 通过WindowManager的addView方法创建View，产生出来的View根据WindowManager.LayoutParams属性不同，效果也就不同了。
* 比如创建系统顶级窗口，实现悬浮窗口效果！
*/
windowManager.addView(maskView, wl);
} private void removeMask() {
if (null != maskView) {
windowManager.removeViewImmediate(maskView);
maskView = null;
}
} @Override
public void dismiss() {
removeMask();
super.dismiss();
}
}

TestPopupWindow.class

package com.example.popupwindowwithmask; import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.WindowManager; /**
* Created by kk on 2017/7/22.
*/ public class TestPopupWindow extends BasePopupWindowWithMask {
private int[] mIds;
private View contentView;
private OnItemClickListener listener; public interface OnItemClickListener {
void OnItemClick(View v);
} public void setOnItemClickListener(OnItemClickListener listener) {
this.listener = listener;
} public TestPopupWindow(Context context, int[] mIds) {
super(context);
this.mIds = mIds; initListener();
} @Override
protected View initContentView() {
contentView = LayoutInflater.from(context).inflate(R.layout.pop_layout, null, false);
return contentView;
} private void initListener() {
for (int i = ; i < mIds.length; i++) {
contentView.findViewById(mIds[i]).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (null != listener) {
listener.OnItemClick(v);
}
dismiss();
}
});
}
}
@Override
protected int initHeight() {
return WindowManager.LayoutParams.WRAP_CONTENT;
}
@Override
protected int initWidth() {
return (int) (0.5 * UIUtils.getScreenWidth(context));
}
}
MainActivity.class
? package com.example.popupwindowwithmask; import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.TextView;
import android.widget.Toast; public class MainActivity extends AppCompatActivity {
private TextView textView; @Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
textView = (TextView) findViewById(R.id.tv_popup); final TestPopupWindow testPopupWindow = new TestPopupWindow(this, new int[]{R.id.pop_location, R.id.pop_group, R.id.pop_list}); textView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
testPopupWindow.showAsDropDown(textView);
}
}); testPopupWindow.setOnItemClickListener(new TestPopupWindow.OnItemClickListener() {
@Override
public void OnItemClick(View v) {
switch (v.getId()) {
case R.id.pop_location:
Toast.makeText(MainActivity.this, "地址", Toast.LENGTH_SHORT).show();
break;
case R.id.pop_group:
Toast.makeText(MainActivity.this, "分组", Toast.LENGTH_SHORT).show();
break;
case R.id.pop_list:
Toast.makeText(MainActivity.this, "清单", Toast.LENGTH_SHORT).show();
break;
}
}
});
}
}

pop_layout.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"> <RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"> <RelativeLayout
android:id="@+id/rl_indicator"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_horizontal"> <ImageView
android:layout_width="wrap_content"
android:layout_height="12dp"
android:scaleType="fitCenter"
android:src="@drawable/filter_arrow_up" />
</RelativeLayout> <LinearLayout
android:layout_width="wrap_content"
android:layout_height="150dp"
android:layout_below="@+id/rl_indicator"
android:background="@drawable/pop_background"
android:gravity="center_horizontal"
android:orientation="vertical"
android:paddingLeft="15dp"
android:paddingRight="15dp"> <TextView
android:id="@+id/pop_location"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight=""
android:drawableLeft="@mipmap/fault_equipment_location_icon"
android:drawablePadding="12dp"
android:gravity="center_vertical"
android:text="地址"
android:textColor="#000"
android:textSize="16sp" /> <View
android:layout_width="match_parent"
android:layout_height="0.3dp"
android:background="#D2D2D2" /> <TextView
android:id="@+id/pop_group"
android:layout_width="match_parent"
android:layout_height="0dp" android:layout_weight=""
android:drawableLeft="@mipmap/fault_equipment_grouping_icon"
android:drawablePadding="12dp"
android:gravity="center_vertical"
android:text="分组"
android:textColor="#000"
android:textSize="16sp" /> <View
android:layout_width="match_parent"
android:layout_height="0.3dp"
android:background="#D2D2D2" /> <TextView
android:id="@+id/pop_list"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight=""
android:drawableLeft="@mipmap/fault_equipment_list_icon"
android:drawablePadding="12dp"
android:gravity="center_vertical"
android:text="清单"
android:textColor="#000"
android:textSize="16sp" /> </LinearLayout>
</RelativeLayout>
</RelativeLayout>

pop_background.xml

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<solid android:color="#ffffff" />
<corners
android:radius="5dp" />
</shape>

UIUtils.class

package com.example.popupwindowwithmask; import android.content.Context; /**
* Created by kk on 2017/7/22.
*/ public class UIUtils {
/**
* 获得屏幕宽度
*
* @param context
* @return
*/
public static int getScreenWidth(Context context) {
return context.getResources().getDisplayMetrics().widthPixels;
} /**
* 获得屏幕高度
*
* @param context
* @return
*/
public static int getScreenHeight(Context context) {
return context.getResources().getDisplayMetrics().heightPixels;
} }