If a popup window is modal, it will receive all touch and key input. 73 | * If the user touches outside the popup window's content area the popup window 74 | * will be dismissed. 75 | * 76 | * @param modal {@code true} if the popup window should be modal, {@code false} otherwise. 77 | */ 78 | public void setModal(boolean modal) { 79 | mModal = modal; 80 | } 81 | 82 | public boolean isShowing(){ 83 | return mPopupWindow != null && mPopupWindow.isShowing(); 84 | } 85 | 86 | public void hide(){ 87 | if (isShowing()) { 88 | mPopupWindow.dismiss(); 89 | } 90 | } 91 | 92 | /** 93 | * Sets a listener to receive events when a list item is clicked. 94 | * 95 | * @param clickListener Listener to register 96 | * 97 | * @see ListView#setOnItemClickListener(AdapterView.OnItemClickListener) 98 | */ 99 | public void setOnItemClickListener(@Nullable AdapterView.OnItemClickListener clickListener) { 100 | mItemClickListener = clickListener; 101 | if (mPopView != null) { 102 | mPopView.setOnItemClickListener(mItemClickListener); 103 | } 104 | } 105 | 106 | private ListView mPopView; 107 | 108 | public void show() { 109 | if (mAnchorView == null) { 110 | throw new IllegalArgumentException("PopupWindow show location view can not be null"); 111 | } 112 | if (mItemData == null) { 113 | throw new IllegalArgumentException("please fill ListView Data"); 114 | } 115 | mPopView = new ListView(mContext); 116 | mPopView.setBackgroundColor(ContextCompat.getColor(mContext, android.R.color.white)); 117 | mPopView.setVerticalScrollBarEnabled(false); 118 | mPopView.setDivider(null); 119 | mPopView.setAdapter(new ArrayAdapter<>(mContext, 120 | android.R.layout.simple_list_item_1, mItemData)); 121 | if (mItemClickListener != null) { 122 | mPopView.setOnItemClickListener(mItemClickListener); 123 | } 124 | mPopView.measure(View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED), 125 | View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED)); 126 | if (mPopupWindowWidth == 0) { 127 | mPopupWindowWidth = mDeviceWidth / 3; 128 | } 129 | if (mPopupWindowHeight == 0) { 130 | mPopupWindowHeight = mItemData.size() * mPopView.getMeasuredHeight(); 131 | if (mPopupWindowHeight > mDeviceHeight / 2) { 132 | mPopupWindowHeight = mDeviceHeight / 2; 133 | } 134 | } 135 | mPopupWindow = new PopupWindow(mPopView, mPopupWindowWidth, mPopupWindowHeight); 136 | if (mPopAnimStyle != 0) { 137 | mPopupWindow.setAnimationStyle(mPopAnimStyle); 138 | } 139 | mPopupWindow.setOutsideTouchable(true); 140 | mPopupWindow.setFocusable(mModal); 141 | mPopupWindow.setBackgroundDrawable(new BitmapDrawable(mContext.getResources(), (Bitmap) null)); 142 | 143 | 144 | Rect location = locateView(mAnchorView); 145 | if (location != null) { 146 | int x; 147 | //view中心点X坐标 148 | int xMiddle = location.left + mAnchorView.getWidth() / 2; 149 | if (xMiddle > mDeviceWidth / 2) { 150 | //在右边 151 | x = xMiddle - mPopupWindowWidth; 152 | } else { 153 | x = xMiddle; 154 | } 155 | int y; 156 | //view中心点Y坐标 157 | int yMiddle = location.top + mAnchorView.getHeight() / 2; 158 | if (yMiddle > mDeviceHeight / 2) { 159 | //在下方 160 | y = yMiddle - mPopupWindowHeight; 161 | } else { 162 | //在上方 163 | y = yMiddle; 164 | } 165 | mPopupWindow.showAtLocation(mAnchorView, Gravity.NO_GRAVITY, x, y); 166 | } 167 | } 168 | 169 | public Rect locateView(View v) { 170 | if (v == null) return null; 171 | int[] loc_int = new int[2]; 172 | try { 173 | v.getLocationOnScreen(loc_int); 174 | } catch (NullPointerException npe) { 175 | //Happens when the view doesn't exist on screen anymore. 176 | return null; 177 | } 178 | Rect location = new Rect(); 179 | location.left = loc_int[0]; 180 | location.top = loc_int[1]; 181 | location.right = location.left + v.getWidth(); 182 | location.bottom = location.top + v.getHeight(); 183 | return location; 184 | } 185 | 186 | 187 | private int mDeviceWidth, mDeviceHeight; 188 | 189 | public void setHeightWidth() { 190 | WindowManager wm = (WindowManager) mContext.getSystemService(Context.WINDOW_SERVICE); 191 | //API 13才允许使用新方法 192 | Point outSize = new Point(); 193 | wm.getDefaultDisplay().getSize(outSize); 194 | if (outSize.x != 0) { 195 | mDeviceWidth = outSize.x; 196 | } 197 | if (outSize.y != 0) { 198 | mDeviceHeight = outSize.y; 199 | } 200 | } 201 | 202 | } 203 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. 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