Android Studio开发App时Palette缺失时钟、日期选择器等组件如何找回?
Hey there! I totally get how annoying it is when you can't find key UI tools like Analog Clock, Digital Clock, DatePicker, and TimePicker in Android Studio's Palette. Let's go through the most reliable fixes to get them back:
Check Palette's display filters
Click the three-dot menu in the top-right corner of the Palette panel. Make sure either "Show All" or "Show System Components" is checked. Sometimes the default view hides less commonly used system components, which includes the ones you're looking for. You can also use the search bar at the top of the Palette to directly type the component name (like "Analog Clock")—this often pulls up hidden items instantly.Ensure you're in the correct Design view
Double-check that you're on the Design tab (not Code or Split). If you don't see the Palette at all, bring it up usingAlt+6(Windows/Linux) orCmd+6(Mac), or via the menu bar:View > Tool Windows > Palette.Invalidate caches and restart Android Studio
Corrupted cache files are a common culprit for wonky UI panel behavior. Go toFile > Invalidate Caches..., then select "Invalidate and Restart". This will clear out any cached data that might be hiding your components, and restart the IDE fresh.Check for legacy component categories
Some older system components (like AnalogClock) are marked as deprecated in newer Android Studio versions, so they might be tucked away in a "Legacy" or "System" category in the Palette. Scroll through all the category tabs to find them—don't skip over the less obvious ones!Manually add a component to your layout (as a workaround)
If all else fails, open your layout XML file and manually add the component code (e.g.,<AnalogClock android:layout_width="wrap_content" android:layout_height="wrap_content"/>). Switch back to the Design view, and the component should now appear in the Palette for future use.
内容的提问来源于stack exchange,提问作者Giridhar Reddy

