Reputation: 607
I have three NumberPickers defined in my app but none of them show scroll areas above the numbers - I only see the numbers themselves, with a horizontal bar above and below each. If I click on the areas above or below each horizontal bar (where I would expect the +/- scrolling controls to be) nothing happens. My layout XML is below. Any ideas??
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/background"
android:orientation="vertical" >
<LinearLayout
android:id="@+id/group"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hours:" />
<NumberPicker
android:id="@+id/numberPickerHours"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Minutes:" />
<NumberPicker
android:id="@+id/numberPickerMinutes"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Seconds" />
<NumberPicker
android:id="@+id/numberPickerSeconds"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>
<LinearLayout
android:id="@+id/group"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<ImageButton
android:id="@+id/add"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:onClick="onClickStartTimer"
android:src="@drawable/play" />
</LinearLayout>
<ScrollView
android:id="@+id/scrollViewRecords"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@+id/textViewRecordCount"
android:padding="5dip" >
<LinearLayout
android:id="@+id/linearLayoutRecords"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >
</LinearLayout>
</ScrollView>
</LinearLayout>
Upvotes: 0
Views: 1057
Reputation: 607
I have now discovered the problem - I did not set Min and Max values for the NumberPickers - this effectively disabled the scrolling controls
Upvotes: 1
Reputation: 16
In Android 4.* the number picker is different. The layout shown in Eclipse is that of Android 2.3. The NumberPicker will still work, you can swipe up/down starting from the number shown in the middle.
http://www.fastcompany.com/multisite_files/fastcompany/imagecache/inline-large/inline/2012/10/3002577-inline-image-12.png shows them both.
Upvotes: 0