普通doalog内容区域外恢复点击事件，去除遮罩层

AlertDialog alertDialog = new AlertDialog
        .Builder(this)
        .setTitle("请点击播放的舞美效果")
        //列表选择
        .setItems(danceName, new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                tcpClient.setCode(getOne(danceName[which]).getCode());
                tcpClient.tcpStart();
                mSpinnerEight.setText(danceName[which]);
                try {
                    Field field = dialog.getClass().getSuperclass().getDeclaredField("mShowing");
                    field.setAccessible(true);
                    //设置mShowing值，欺骗android系统
                    field.set(dialog, false);
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        })
        .setPositiveButton("关闭",
                new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        try {
                            Field field = dialog.getClass().getSuperclass().getDeclaredField("mShowing");
                            field.setAccessible(true);
                            //设置mShowing值，欺骗android系统
                            field.set(dialog, true);
                        } catch (Exception e) {
                            e.printStackTrace();
                        }
                        dialog.dismiss();
                    }
                }).create();
alertDialog.show();
Window dialogWindow = alertDialog.getWindow();
dialogWindow.setGravity(Gravity.BOTTOM | Gravity.LEFT);
dialogWindow.setFlags(WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL,WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL);//恢复dialog区域外部的功能
dialogWindow.setDimAmount(0f);//去除遮罩层
WindowManager.LayoutParams lp = dialogWindow.getAttributes();
lp.width=1008;//定义宽度
lp.height=900;//定义高度
lp.x = 61;
lp.y = 100; //设置出现的高度，距离底部
dialogWindow.setAttributes(lp);