自定义PopupWindow,点击弹出PopupWindow,背景变暗,仿点击弹出分享

注:参照大神代码写的

自定义代码

package com.duanlian.popupwindowdemo;

import android.app.Activity;
import android.content.Context;
import android.graphics.drawable.ColorDrawable;
import android.view.LayoutInflater;
import android.view.View;
import android.view.WindowManager;
import android.widget.LinearLayout;
import android.widget.PopupWindow;
import android.widget.TextView;

/**
 * 自定义popupWindow
 */

public class RewritePopwindow extends PopupWindow {
    private View mView;

    public RewritePopwindow(Activity context, View.OnClickListener itemsOnClick) {
        super(context);
        initView(context, itemsOnClick);
    }

    private void initView(final Activity context, View.OnClickListener itemsOnClick) {
        LayoutInflater mInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        mView = mInflater.inflate(R.layout.popupwindow_share, null);
        LinearLayout weiXFriend = (LinearLayout) mView.findViewById(R.id.weixinghaoyou);
        LinearLayout friendster = (LinearLayout) mView.findViewById(R.id.pengyouquan);
        LinearLayout QQFriend = (LinearLayout) mView.findViewById(R.id.qqhaoyou);
        LinearLayout QQZone = (LinearLayout) mView.findViewById(R.id.qqkongjian);
        TextView canaleTv = (TextView) mView.findViewById(R.id.share_cancle);
        canaleTv.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                //销毁弹出框
                dismiss();
                backgroundAlpha(context, 1f);
            }
        });
        //设置按钮监听
        weiXFriend.setOnClickListener(itemsOnClick);
        friendster.setOnClickListener(itemsOnClick);
        QQFriend.setOnClickListener(itemsOnClick);
        QQZone.setOnClickListener(itemsOnClick);
        //设置SelectPicPopupWindow的View
        this.setContentView(mView);
        //设置SelectPicPopupWindow弹出窗体的宽
        this.setWidth(WindowManager.LayoutParams.FILL_PARENT);
        //设置SelectPicPopupWindow弹出窗体的高
        this.setHeight(WindowManager.LayoutParams.WRAP_CONTENT);
        //设置SelectPicPopupWindow弹出窗体可点击
        this.setFocusable(true);
        //设置PopupWindow可触摸
        this.setTouchable(true);
        //设置非PopupWindow区域是否可触摸
//        this.setOutsideTouchable(false);
        //设置SelectPicPopupWindow弹出窗体动画效果
//        this.setAnimationStyle(R.style.select_anim);
        //实例化一个ColorDrawable颜色为半透明
        ColorDrawable dw = new ColorDrawable(0x00000000);
        //设置SelectPicPopupWindow弹出窗体的背景
        this.setBackgroundDrawable(dw);
        backgroundAlpha(context, 0.5f);//0.0-1.0
        this.setOnDismissListener(new OnDismissListener() {

            @Override
            public void onDismiss() {
                // TODO Auto-generated method stub
                backgroundAlpha(context, 1f);
            }
        });
    }


    /**
     * 设置添加屏幕的背景透明度
     *
     * @param bgAlpha
     */
    public void backgroundAlpha(Activity context, float bgAlpha) {
        WindowManager.LayoutParams lp = context.getWindow().getAttributes();
        lp.alpha = bgAlpha;
        context.getWindow().addFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND);
        context.getWindow().setAttributes(lp);
    }

}

MainActivity中用

package com.duanlian.popupwindowdemo;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.Gravity;
import android.view.View;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {
    private RewritePopwindow mPopwindow;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        findViewById(R.id.share).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                mPopwindow = new RewritePopwindow(MainActivity.this, itemsOnClick);
                mPopwindow.showAtLocation(view,
                        Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 0, 0);
            }
        });
    }

    //为弹出窗口实现监听类
    private View.OnClickListener itemsOnClick = new View.OnClickListener() {

        public void onClick(View v) {
            mPopwindow.dismiss();
            mPopwindow.backgroundAlpha(MainActivity.this, 1f);
            switch (v.getId()) {
                case R.id.weixinghaoyou:
                    Toast.makeText(MainActivity.this, "微信好友", Toast.LENGTH_SHORT).show();
                    break;
                case R.id.pengyouquan:
                    Toast.makeText(MainActivity.this, "朋友圈", Toast.LENGTH_SHORT).show();
                    break;
                case R.id.qqhaoyou:
                    Toast.makeText(MainActivity.this, "QQ好友", Toast.LENGTH_SHORT).show();
                    break;
                case R.id.qqkongjian:
                    Toast.makeText(MainActivity.this, "QQ空间", Toast.LENGTH_SHORT).show();
                    break;
                default:
                    break;
            }
        }

    };
}

布局文件--popupWindow布局

mainActivity的布局文件

demo下载地址

http://download.csdn.net/detail/dl10210950/9647258