最近想要做一个弹出更多的菜单，而原生的弹出菜单却不是我们想要的效果，所以必然要自定义菜单咯。本人也是借鉴网上的资料进行封装的，感觉还蛮不错的。
原生的菜单如下图：
自定义之后的效果图：
是不是看到这里之后，对比可知，原生的效果不太理想，所以还是再自己定义吧！
1、PopupWindow可以说是一个浮动在Activity之上的容器，通常用来显示自定义的视图。弹出菜单的封装PopMenuMore
/** * 对弹出菜单的封装. * http://blog.csdn.net/maosidiaoxian/article/details/39178167 * Author: msdx (645079761@qq.com) * Time: 14-6-13 下午1:51 */ public class PopMenuMore { /** * 上下文. */ private Context mContext; /** * 菜单项 */ private ArrayList<PopMenuMoreItem> mItemList; /** * 列表适配器. */ private BaseAdapter mAdapter; /** * 菜单选择监听. */ private OnItemSelectedListener mListener; /** * 下角图标 */ private ImageView cornerIcon; /** * 列表. */ private ListView mListView; /** * 弹出窗口. */ private PopupWindow mPopupWindow; public PopMenuMore(Context context) { mContext = context; mItemList = new ArrayList<>(); View view = onCreateView(context); view.setFocusableInTouchMode(true); mAdapter = onCreateAdapter(context, mItemList); cornerIcon = findCornerView(view); mListView = findListView(view); mListView.setAdapter(mAdapter); mListView.setOnItemClickListener(new AdapterView.OnItemClickListener() { @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { PopMenuMoreItem item = (PopMenuMoreItem) mAdapter.getItem(position); if (mListener != null) { mListener.selected(view, item, position); } mPopupWindow.dismiss(); } }); view.setOnKeyListener(new View.OnKeyListener() { @Override public boolean onKey(View v, int keyCode, KeyEvent event) { if (keyCode == KeyEvent.KEYCODE_MENU && mPopupWindow.isShowing()) { mPopupWindow.dismiss(); return true; } return false; } }); mPopupWindow = new PopupWindow(view, ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT, true); mPopupWindow.setBackgroundDrawable(new ColorDrawable(0x00000000)); setBackgroundColor(Color.parseColor("#000000")); setCorner(R.mipmap.triangle); } /** * 设置ListView背景 * * @param argb Color.parseColor("..") */ public void setBackgroundColor(int argb) { // int strokeWidth = 5; // 3dp 边框宽度 int roundRadius = 5; // 8dp 圆角半径 // int strokeColor = Color.parseColor("#2E3135");//边框颜色 // int fillColor = Color.parseColor("#DFDFE0");//内部填充颜色 GradientDrawable gd = new GradientDrawable();//创建drawable gd.setColor(argb); gd.setCornerRadius(roundRadius); // gd.setStroke(strokeWidth, strokeColor); mListView.setBackgroundDrawable(gd); } /** * 设置下角图标 * * @param resId */ public void setCorner(int resId) { cornerIcon.setBackgroundResource(resId); } protected View onCreateView(Context context) { return LayoutInflater.from(context).inflate(R.layout.layout_popmenu_more, null); } protected ImageView findCornerView(View view) { return (ImageView) view.findViewById(R.id.corner_iv); } protected ListView findListView(View view) { return (ListView) view.findViewById(R.id.menu_listview); } /** * 菜单列表中的适配器. * * @param context * @param items 表示所有菜单项. * @return */ protected BaseAdapter onCreateAdapter(Context context, ArrayList<PopMenuMoreItem> items) { return new PopMenuMoreAdapter(context, items); } /** * 添加菜单项 * * @param item */ public void addItem(PopMenuMoreItem item) { mItemList.add(item); mAdapter.notifyDataSetChanged(); } public void addItems(List<PopMenuMoreItem> items) { if (items != null) { mItemList.clear(); } for (PopMenuMoreItem item : items) { mItemList.add(item); } mAdapter.notifyDataSetChanged(); } /** * 作为指定View的下拉控制显示. * * @param parent 所指定的View */ public void showAsDropDown(View parent) { mPopupWindow.showAsDropDown(parent); } /** * 隐藏菜单. */ public void dismiss() { mPopupWindow.dismiss(); } /** * 设置菜单选择监听. * * @param listener 监听器. */ public void setOnItemSelectedListener(OnItemSelectedListener listener) { mListener = listener; } /** * 当前菜单是否正在显示. * * @return */ public boolean isShowing() { return mPopupWindow.isShowing(); } /** * 菜单项选择监听接口. */ public interface OnItemSelectedListener { /** * 菜单被选择时的回调接口. * * @param view 被选择的内容的View. * @param item 被选择的菜单项. * @param position 被选择的位置. */ void selected(View view, PopMenuMoreItem item, int position); } }
2、菜单中ListView的适配器：PopMenuMoreAdapter
/** * @author SoBan * @create 2017/4/12 10:29. */ public class PopMenuMoreAdapter extends BaseAdapter { private ArrayList<PopMenuMoreItem> items; private Context context; public PopMenuMoreAdapter(Context context, ArrayList<PopMenuMoreItem> items) { this.context = context; this.items = items; } @Override public int getCount() { return items.size(); } @Override public PopMenuMoreItem getItem(int position) { return items.get(position); } @Override public long getItemId(int position) { return position; } @Override public View getView(int position, View view, ViewGroup parent) { if (view == null) { view = LayoutInflater.from(context).inflate(R.layout.item_popmenu_more, null); ViewHolder holder = new ViewHolder(); holder.icon = (ImageView) view.findViewById(R.id.menu_icon); holder.text = (TextView) view.findViewById(R.id.menu_text); view.setTag(holder); } else if (view.getParent() != null) { ((ViewGroup) view.getParent()).removeView(view); } ViewHolder holder = (ViewHolder) view.getTag(); PopMenuMoreItem item = items.get(position); if (item.getResId() == 0) { holder.icon.setVisibility(View.GONE); } holder.text.setText(item.getText()); return view; } private class ViewHolder { ImageView icon; TextView text; } }
3、菜单项中item: PopMenuMoreItem
/** * 菜单项. */ public class PopMenuMoreItem { public int id; //标识 public int resId; //资源图标 public String text;//文字 public PopMenuMoreItem(int id, String text) { this.id = id; this.resId = 0; this.text = text; } public PopMenuMoreItem(int id, int resId, String text) { this.id = id; this.resId = resId; this.text = text; } public int getId() { return id; } public void setId(int id) { this.id = id; } public int getResId() { return resId; } public void setResId(int resId) { this.resId = resId; } public String getText() { return text; } public void setText(String text) { this.text = text; } }
4、宽度适配内容、不滚动的ListView：PopMenuMoreListView
/** * 宽度适配内容的ListView. * Author: msdx (645079761@qq.com) * Time: 14-9-2 下午5:14 */ public class PopMenuMoreListView extends ListView { public PopMenuMoreListView(Context context) { super(context); } public PopMenuMoreListView(Context context, AttributeSet attrs) { super(context, attrs); } public PopMenuMoreListView(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); } @Override protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { int width = 0; for (int i = 0; i < getChildCount(); i++) { View child = getChildAt(i); child.measure(MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED), heightMeasureSpec); int w = child.getMeasuredWidth(); if (w > width) width = w; } widthMeasureSpec = MeasureSpec.makeMeasureSpec(width + getPaddingLeft() + getPaddingRight(), MeasureSpec.EXACTLY); super.onMeasure(widthMeasureSpec, heightMeasureSpec); } }
5、item的布局：item_popmenu_more.xml
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="wrap_content" android:layout_height="wrap_content" android:paddingBottom="10dip" android:paddingLeft="20dip" android:paddingRight="20dip" android:paddingTop="10dip"> <ImageView android:id="@+id/menu_icon" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center_vertical" android:layout_marginLeft="5dip" android:layout_marginRight="5dip" android:src="@mipmap/demand_icon_location" /> <TextView android:id="@+id/menu_text" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center_vertical" android:singleLine="true" android:textColor="#FFFFFF" /> </LinearLayout>
6、更多菜单的布局：layout_popmenu_more.xml
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical" android:paddingRight="5dip"> <ImageView android:id="@+id/corner_iv" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="right" android:layout_marginRight="15dip" android:contentDescription="@null" /> <soban.orderscroll.PopMenuMoreListView android:id="@+id/menu_listview" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="right" android:cacheColorHint="@android:color/transparent" android:listSelector="@android:color/transparent" android:divider="#FFFFFF" android:dividerHeight="1px" android:focusable="true" /> </LinearLayout>
7、例子Activity: MainActivity
public class MainActivity extends Activity { private static final int USER_SEARCH = 0; private static final int USER_ADD = 1; private PopMenuMore mMenu; private TextView mTextView; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); initMenu(); mTextView = (TextView) findViewById(R.id.hello_tv); mTextView.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { mMenu.showAsDropDown(mTextView); } }); } private void initMenu() { mMenu = new PopMenuMore(this); // mMenu.setCorner(R.mipmap.demand_icon_location); // mMenu.setBackgroundColor(Color.parseColor("#ff8800")); ArrayList<PopMenuMoreItem> items = new ArrayList<>(); items.add(new PopMenuMoreItem(USER_SEARCH, "搜索")); items.add(new PopMenuMoreItem(USER_ADD, "添加")); items.add(new PopMenuMoreItem(USER_SEARCH, "搜索")); items.add(new PopMenuMoreItem(USER_ADD, "添加")); items.add(new PopMenuMoreItem(USER_SEARCH, "搜索")); items.add(new PopMenuMoreItem(USER_ADD, "添加")); /*items.add(new PopMenuMoreItem(USER_SEARCH, R.mipmap.demand_icon_number, "搜索")); items.add(new PopMenuMoreItem(USER_ADD, R.mipmap.demand_icon_location, "添加")); items.add(new PopMenuMoreItem(USER_SEARCH, R.mipmap.demand_icon_number, "搜索")); items.add(new PopMenuMoreItem(USER_ADD, R.mipmap.demand_icon_location, "添加")); items.add(new PopMenuMoreItem(USER_SEARCH, R.mipmap.demand_icon_number, "搜索")); items.add(new PopMenuMoreItem(USER_ADD, R.mipmap.demand_icon_location, "添加"));*/ mMenu.addItems(items); mMenu.setOnItemSelectedListener(new PopMenuMore.OnItemSelectedListener() { @Override public void selected(View view, PopMenuMoreItem item, int position) { switch (item.id) { case USER_SEARCH: // startActivity(new Intent(this, UserSearchActivity.class)); break; case USER_ADD: // startActivity(new Intent(getActivity(), UserAddActivity.class)); break; } } }); } }
8、例子布局：activity_main.xml
<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:id="@+id/activity_main" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin"> <TextView android:id="@+id/hello_tv" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Hello World!" /> </RelativeLayout>
9、所需资源文件：
参考:
android使用PopupWindow实现页面点击顶部弹出下拉菜单
以上所述是小编给大家介绍的Android 使用PopupWindow实现弹出更多的菜单实例详解，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对脚本之家网站的支持！