详细配置

只需要一个PopupList.java文件和几行代码，你就可以为ListView，GridView，甚至任意View绑定一个长按弹出的水平气泡式菜单。 你可以这样使用：

public class MainActivity extends AppCompatActivity {

    private Button btn_long_click;
    private ListView lv_main;
    private List<String> mDataList = new ArrayList<>();
    private ArrayAdapter<String> mDataAdapter;
    private List<String> popupMenuItemList = new ArrayList<>();

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        btn_long_click = (Button) findViewById(R.id.btn_long_click);
        lv_main = (ListView) findViewById(R.id.lv_main);
        mDataAdapter = new ArrayAdapter<>(this, android.R.layout.simple_expandable_list_item_1, mDataList);
        lv_main.setAdapter(mDataAdapter);

        popupMenuItemList.add(getString(R.string.copy));
        popupMenuItemList.add(getString(R.string.delete));
        popupMenuItemList.add(getString(R.string.share));
        popupMenuItemList.add(getString(R.string.more));
        PopupList popupList = new PopupList(this);
        popupList.bind(lv_main, popupMenuItemList, new PopupList.PopupListListener() {
            @Override
            public boolean showPopupList(View adapterView, View contextView, int contextPosition) {
                return true;
            }

            @Override
            public void onPopupListClick(View contextView, int contextPosition, int position) {
                Toast.makeText(MainActivity.this, contextPosition + "," + position, Toast.LENGTH_SHORT).show();
            }
        });

        PopupList normalViewPopupList = new PopupList(this);
        normalViewPopupList.bind(btn_long_click, popupMenuItemList, new PopupList.PopupListListener() {
            @Override
            public boolean showPopupList(View adapterView, View contextView, int contextPosition) {
                return true;
            }

            @Override
            public void onPopupListClick(View contextView, int contextPosition, int position) {
                Toast.makeText(MainActivity.this, contextPosition + "," + position, Toast.LENGTH_SHORT).show();
            }
        });

        lv_main.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                Toast.makeText(MainActivity.this, "onItemClicked:" + position, Toast.LENGTH_SHORT).show();
            }
        });
        btn_long_click.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                startActivity(new Intent(MainActivity.this, SecondaryActivity.class));
            }
        });
        getData();
    }

    private void getData() {
        for (int i = 0; i < 40; i++) {
            mDataList.add("No." + i);
        }
        mDataAdapter.notifyDataSetChanged();
    }

}

注意：bind()方法要求你的anchorView不能有touch和longClick/itemLongClick监听，因为bind()方法会主动给anchorView设置监听器：

    mAnchorView.setOnTouchListener(new View.OnTouchListener() {
        @Override
        public boolean onTouch(View v, MotionEvent event) {
            mRawX = event.getRawX();
            mRawY = event.getRawY();
            return false;
        }
    });
    if (mAnchorView instanceof AbsListView) {
        ((AbsListView) mAnchorView).setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() {
            @Override
            public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) {
                if (mPopupListListener != null
                        && !mPopupListListener.showPopupList(parent, view, position)) {
                    return false;
                }
                mAdapterView = parent;
                mContextView = view;
                mContextPosition = position;
                showPopupListWindow();
                return true;
            }
        });
    } else {
        mAnchorView.setOnLongClickListener(new View.OnLongClickListener() {
            @Override
            public boolean onLongClick(View v) {
                if (mPopupListListener != null
                        && !mPopupListListener.showPopupList(v, v, 0)) {
                    return false;
                }
                mContextView = v;
                mContextPosition = 0;
                showPopupListWindow();
                return true;
            }
        });
    }

这就限制了anchorView不能再添加touch监听，不能添加longClick监听，如果你需要添加监听可以使用showPopupListWindow方法主动来显示弹出框，而不是使用bind()方法。：

public class SecondaryActivity extends AppCompatActivity {

    private ListView lv_main;
    private List<String> mDataList = new ArrayList<>();
    private ArrayAdapter<String> mDataAdapter;
    private List<String> popupMenuItemList = new ArrayList<>();
    private float mRawX;
    private float mRawY;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_secondary);
        lv_main = (ListView) findViewById(R.id.lv_main);
        mDataAdapter = new ArrayAdapter<>(this, android.R.layout.simple_expandable_list_item_1, mDataList);
        lv_main.setAdapter(mDataAdapter);

        popupMenuItemList.add(getString(R.string.copy));
        popupMenuItemList.add(getString(R.string.delete));
        popupMenuItemList.add(getString(R.string.share));
        popupMenuItemList.add(getString(R.string.more));

        lv_main.setOnTouchListener(new View.OnTouchListener() {
            @Override
            public boolean onTouch(View v, MotionEvent event) {
                mRawX = event.getRawX();
                mRawY = event.getRawY();
                return false;
            }
        });
        lv_main.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                Toast.makeText(SecondaryActivity.this, "onItemClicked:" + position, Toast.LENGTH_SHORT).show();
            }
        });
        lv_main.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() {
            @Override
            public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) {
                PopupList popupList = new PopupList(view.getContext());
                popupList.showPopupListWindow(view, position, mRawX, mRawY, popupMenuItemList, new PopupList.PopupListListener() {
                    @Override
                    public boolean showPopupList(View adapterView, View contextView, int contextPosition) {
                        return true;
                    }

                    @Override
                    public void onPopupListClick(View contextView, int contextPosition, int position) {
                        Toast.makeText(contextView.getContext(), contextPosition + "," + position, Toast.LENGTH_SHORT).show();
                    }
                });
                return true;
            }
        });
        getData();
    }

    private void getData() {
        for (int i = 0; i < 40; i++) {
            mDataList.add("No." + i);
        }
        mDataAdapter.notifyDataSetChanged();
    }

}

更详细的配置：

• popupList.setIndicatorView(View)
• popupList.setIndicatorSize(int, int)
• popupList.setNormalBackgroundColor(int)
• popupList.setPressedBackgroundColor(int)
• popupList.setNormalTextColor(int)
• popupList.setPressedTextColor(int)
• popupList.setDividerColor(int)
• popupList.setTextSize(float)
• popupList.setTextPadding(int, int, int, int)
• popupList.setTextPaddingLeft(int)
• popupList.setTextPaddingTop(int)
• popupList.setTextPaddingRight(int)
• popupList.setTextPaddingBottom(int)
• popupList.setBackgroundCornerRadius(int)
• popupList.setDividerWidth(int)
• popupList.setDividerHeight(int)