先看效果,上图展示了最近在开发的项目经常用到的pop案例,包括一般的选项,下拉选项,menu等,布局就不贴了,很简单
相信都能秒懂,贴下pop的核心代码
/** * * @author yaguang.wang * */ public class MenuPop extends PopupWindow { private int resId; private Context mContext; private View popView; private LayoutInflater inflater; public MenuPop(int resId,Context context) { super(context); this.resId = resId; mContext = context; inflater=(LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE); init(); } @SuppressWarnings("deprecation") public void init(){ popView = inflater.inflate(this.resId, null); popView.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT)); setContentView(popView); setWidth(LayoutParams.FILL_PARENT); setHeight(LayoutParams.WRAP_CONTENT); setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT)); setFocusable(true); Button btn1 = (Button) popView.findViewById(R.id.menu_btn1); Button btn2 = (Button) popView.findViewById(R.id.menu_btn2); Button btn3 = (Button) popView.findViewById(R.id.menu_btn3); Button btn4 = (Button) popView.findViewById(R.id.menu_btn4); btn1.setOnClickListener(new ButtonListener()); btn2.setOnClickListener(new ButtonListener()); btn3.setOnClickListener(new ButtonListener()); btn4.setOnClickListener(new ButtonListener()); popView.setFocusableInTouchMode(true); popView.setOnKeyListener(new View.OnKeyListener() { @Override public boolean onKey(View v, int keyCode, KeyEvent event) { if(keyCode == KeyEvent.KEYCODE_MENU && isShowing()){ dismiss(); return true; } return false; } }); } private class ButtonListener implements View.OnClickListener{ @Override public void onClick(View v) { Toast.makeText(mContext, "view id is"+v.getId(), Toast.LENGTH_SHORT).show(); if (isShowing()) { dismiss(); } } } }
上面就是menupop的源代码。能实现pop按Menu键可以弹出,再次menu键消失,点击其他区域,或按下返回键,或者pop的view有点击事件的时候pop消失。这里具体借鉴了http://blog.csdn.net/admin_/article/details/7278402 这篇文章,这篇文章写的不错。刚开始也遇到了pop弹出来不消失的情况,
setFocusable(true);
popView.setFocusableInTouchMode(true);
这两个方法很关键。pop在弹出的之后就变成了僵尸View,但是Pop里面的View还是可以接收事件的,但是这时候要先把焦点传给pop的view,这样View是可以响应onkeydown事件和onClick事件的。问题得到解决。
/** * * @author yaguang.wang * */ public class GridPop extends PopupWindow { private Context context; private LayoutInflater layoutInflater; public View allView; private int resId; private GridView allItemGrid; public GridPop(Context context,int resourceId) { super(context); this.context = context; this.resId=resourceId; initAllPop(); } public void initAllPop() { layoutInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); allView = layoutInflater.inflate(resId, null); allView.setFocusable(true); allView.setFocusableInTouchMode(true); allItemGrid = (GridView) allView.findViewById(R.id.pop_grid); allView.setFocusableInTouchMode(true); allView.setOnKeyListener(new OnKeyListener() { @Override public boolean onKey(View v, int keyCode, KeyEvent event) { if (isShowing()) { dismiss(); return true; } return false; } }); DisplayMetrics dm=new DisplayMetrics(); ((Activity) context).getWindowManager().getDefaultDisplay().getMetrics(dm); setContentView(allView); setWidth(dm.widthPixels/2); setHeight(LayoutParams.WRAP_CONTENT); setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT)); setTouchable(true); setFocusable(true); setOutsideTouchable(true); } /** * * @return 返回该pop中GridView,可以其他地方设置该GridView */ public GridView getAllItemGrid() { return allItemGrid; } }
上面是gridpop的代码。里面是gridview,其实pop里面可以填很多View的。不再赘述,在封装pop之后,只需要改下布局文件,改下数据,在其他地方就可以方便的new出来不同需求的pop。比如在基类activity做了popmenu的popwindow的操作,那么其他子activity就可以很方便的继承。
来看下MainActivity
/** * * @author yaguang.wang * */ public class Activity_Main extends Activity { private Button btn1,btn2; private MenuPop popMenu; private DefaultPop defaultPop; private GridPop gridpop; private ArrayList<String> stringArray; private GridView gv; @Override protected void onCreate(Bundle savedInstanceState) { setContentView(R.layout.main); initView(); super.onCreate(savedInstanceState); } @Override public boolean onCreateOptionsMenu(Menu menu) { menu.add("xx");//触发onMenuOpened return super.onCreateOptionsMenu(menu); } /** * popMenu */ @Override public boolean onMenuOpened(int featureId, Menu menu) { if (popMenu!=null) { if (popMenu.isShowing()) { popMenu.dismiss(); } else { View v=this.getLayoutInflater().inflate(R.layout.pop_menu, null); popMenu.showAtLocation(v, Gravity.BOTTOM, 0, 0); } } //为false时,才能屏蔽menu add的xx return false; } private void initView(){ //弹出pop1 比较丑见谅 btn1 = (Button) this.findViewById(R.id.main_btn1); //弹出pop2 比较丑见谅 btn2 = (Button) this.findViewById(R.id.main_btn2); btn1.setOnClickListener(new ClickListener()); btn2.setOnClickListener(new ClickListener()); popMenu = new MenuPop(R.layout.pop_menu, Activity_Main.this); //list传值 stringArray = new ArrayList<String>(); for (int i = 1; i <= 20; i++) { stringArray.add("item"+i); } defaultPop = new DefaultPop(Activity_Main.this, R.layout.default_popwin); gridpop = new GridPop(Activity_Main.this, R.layout.pop_list); gv = gridpop.getAllItemGrid(); gv.setAdapter(new GridViewAdapter(Activity_Main.this, stringArray)); gv.setOnItemClickListener(new OnItemClickListener() { @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { //TODO DO SOMETHING Toast.makeText(getApplicationContext(), "item on clicked"+position, Toast.LENGTH_SHORT).show(); if (gridpop.isShowing()) { gridpop.dismiss(); } } }); } private class ClickListener implements View.OnClickListener{ @Override public void onClick(View v) { switch (v.getId()) { /** * pop1 简单控件 */ case R.id.main_btn1: if (defaultPop!=null) { if (defaultPop.isShowing()) { defaultPop.dismiss(); } else { defaultPop.showAsDropDown(v); } } break; /** * pop2 复杂控件 */ case R.id.main_btn2: if (gridpop!=null) { if (gridpop.isShowing()) { gridpop.dismiss(); } else { gridpop.showAsDropDown(v); } } break; } } } }
其他部分的代码就不贴出了。共同学习,源码,在http://download.csdn.net/detail/wangyg1990/7317203
《Andrioid_Popupwindow案例》popWindow做Menu,popWindow做选项菜单,布布扣,bubuko.com
时间: 2024-10-11 13:49:45