本文实例为大家分享了Android仿QQ长按删除弹出框的具体代码，供大家参考，具体内容如下
废话不说，先看一下效果图：
对于列表来说，如果想操作某个列表项，一般会采用长按弹出菜单的形式，默认的上下文菜单比较难看，而QQ的上下文菜单就人性化多了，整个菜单给用户一种气泡弹出的感觉，而且会显示在手指按下的位置，而技术实现我之前是使用popupWindow和RecyclerView实现的，上面一个RecyclerView，下面一个小箭头ImageView，但后来发现没有必要，而且可定制化也不高，还是使用多个TextView更好一点。
我封装了一下，只需要一个PopupList.java文件。源码放在了git上，git地址
使用方式，很简单：
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：
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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：
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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：
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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)
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。
原文链接：https://blog.csdn.net/shangmingchao/article/details/50244161
