57、android 應用內全局通知的實現方法

1、后台運行一個服務 間隔5s從服務器獲取一次數據，根據業務需要，當需要提醒給用戶時，從右側自動划出

類似效果如下：在任何界面都會有通知彈窗

 

2、實現過程

 

 

 

①android的根布局叫dector（獲取方式為：window.getDecotrView()）,

②在activity中setContView設置的activity布局，可以通過dector.getChildAt(0)

③自定義一個FramLayout,FramLayout首先添加above；自定義通知內容，添加到FramLayout；然后把我們自定義的FrameLayout添加到dector

for example：

        ViewGroup decor = (ViewGroup) mWindow.getDecorView();//獲取根布局
        ViewGroup above = (ViewGroup) decor.getChildAt(0);//獲取activity的布局
        decor.removeView(above);
        above.setBackgroundDrawable(decor.getBackground());
　　　　　/**自定義通知開始**/
        LayoutInflater inflater = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);

        RelativeLayout.LayoutParams lp = new RelativeLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
        rlNotifactions.setLayoutParams(lp);

        View grid = inflater.inflate(R.layout.listview_notification,null);
        ListView listview = (ListView)grid.findViewById(R.id.listview_notification_list);
        listview.setAdapter(adapter);
        RelativeLayout.LayoutParams lpTv = new RelativeLayout.LayoutParams(790, ViewGroup.LayoutParams.MATCH_PARENT);
        lpTv.addRule(RelativeLayout.ALIGN_PARENT_TOP|RelativeLayout.ALIGN_PARENT_RIGHT);
        lpTv.setMargins(0, 100, 0, 0);
　　　　　　/**自定義通知結束**/
        rlNotifactions.addView(grid,lpTv);

        mAboveView.addView(above);

        addView(mAboveView);
        addView(rlNotifactions);
        decor.addView(this);//this指的是上文提到的自定義frameLayout
    }

 

參考：

https://github.com/adamrocker/simple-side-drawer/blob/master/doc/simple_side_drawer2.pdf 

https://github.com/adamrocker/simple-side-drawer