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
public class PopMenuMore {
private Context mContext;
private ArrayList mItemList;
private baseAdapter mAdapter;
private OnItemSelectedListener mListener;
private ImageView cornerIcon;
private ListView mListView;
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);
}
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);
}
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);
}
protected baseAdapter onCreateAdapter(Context context, ArrayList items) {
return new PopMenuMoreAdapter(context, items);
}
public void addItem(PopMenuMoreItem item) {
mItemList.add(item);
mAdapter.notifyDataSetChanged();
}
public void addItems(List items) {
if (items != null) {
mItemList.clear();
}
for (PopMenuMoreItem item : items) {
mItemList.add(item);
}
mAdapter.notifyDataSetChanged();
}
public void showAsDropDown(View parent) {
mPopupWindow.showAsDropDown(parent);
}
public void dismiss() {
mPopupWindow.dismiss();
}
public void setonItemSelectedListener(onItemSelectedListener listener) {
mListener = listener;
}
public boolean isShowing() {
return mPopupWindow.isShowing();
}
public interface onItemSelectedListener {
void selected(View view, PopMenuMoreItem item, int position);
}
}
2、菜单中ListView的适配器：PopMenuMoreAdapter
public class PopMenuMoreAdapter extends baseAdapter {
private ArrayList items;
private Context context;
public PopMenuMoreAdapter(Context context, ArrayList 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
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
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
6、更多菜单的布局：layout_popmenu_more.xml
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 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"));
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
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考高分网网站的支持！
