《Andrioid_Popupwindow案例》popWindow做Menu,popWindow做选项菜单

标签：popupwindow做菜单   popupwindow做选项   popupwindow做选择列表   

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

《Andrioid_Popupwindow案例》popWindow做Menu,popWindow做选项菜单

标签：popupwindow做菜单   popupwindow做选项   popupwindow做选择列表   

原文地址：http://blog.csdn.net/wangyg1990/article/details/25318609