1. 7.0上PopupWindow 调用update、showAsDropDown方法导致PopupWindow 设置的宽高无效,showAsDropDown无效,显示在屏幕左上角;
https://blog.csdn.net/m190607070/article/details/58618662
适配
public void showAsDownView(View view){ if (Build.VERSION.SDK_INT < Build.VERSION_CODES.N) {//在7.0之前 popupWindow.showAsDropDown(view, 0, 0); } else { // 适配 android 7.0 int[] location = new int[2]; view.getLocationOnScreen(location); int x = location[0]; int y = location[1]; popupWindow.showAtLocation(view, Gravity.NO_GRAVITY, 0,y); } }
public void showAsDownView(View anchor, int xoff, int yoff) { //7.0 if (Build.VERSION.SDK_INT >= 24) { int[] location = new int[2]; anchor.getLocationOnScreen(location); // 7.1 修复 if (Build.VERSION.SDK_INT == 25) { //【note!】Gets the screen height without the virtual key WindowManager wm = (WindowManager) this.getContentView().getContext().getSystemService(Context.WINDOW_SERVICE); int screenHeight = wm.getDefaultDisplay().getHeight(); /* /* * PopupWindow height for match_parent, * will occupy the entire screen, it needs to do special treatment in Android 7.1 */ this.setHeight(screenHeight - location[1] - anchor.getHeight() - yoff); } this.showAtLocation(anchor, Gravity.NO_GRAVITY, xoff, location[1] + anchor.getHeight() + yoff); } else { this.showAsDropDown(anchor, xoff, yoff); } }
2.
我在在项目动态调用update方法去实现更新它的宽高不起作用,https://blog.csdn.net/u011449334/article/details/54318092
代码如下:
update(LinearLayout.LayoutParams.MATCH_PARENT,LinearLayout.LayoutParams.WRAP_CONTENT);
但是总是不起作用,去查了下update方法,一部分具体如下: public void update(int x, int y, int width, int height, boolean force) { if (width != -1) { mLastWidth = width; setWidth(width); } if (height != -1) { mLastHeight = height; setHeight(height); }
然而LinearLayout.LayoutParams.MATCH_PARENT的值就是-1.
解决办法就是如果想动态更新popupwindow的宽或高为充满,那么可以把
LinearLayout.LayoutParams.MATCH_PARENT设为获取屏幕的实际宽高去设置。