Hi all, I have a ListView populated using a SimpleCursorAdapter that
has a ViewBinder, and I'm finding that when the ListView is displayed,
ViewBinder#setViewValue is called 3 times for each row of the cursor.
Once during onMeasure:
at au.com.xandar.contactsmanager.DisplayContactsActivity
$1.setViewValue(DisplayContactsActivity.java:56)
...
at android.view.View.measure(View.java:8171)
at android.view.ViewRoot.performTraversals(ViewRoot.java:801)
at android.view.ViewRoot.handleMessage(ViewRoot.java:1727)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:123)
at android.app.ActivityThread.main(ActivityThread.java:4627)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:521)
at com.android.internal.os.ZygoteInit
$MethodAndArgsCaller.run(ZygoteInit.java:868)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:
626)
at dalvik.system.NativeStart.main(Native Method)
Once during onLayout:
at au.com.xandar.contactsmanager.DisplayContactsActivity
$1.setViewValue(DisplayContactsActivity.java:56)
...
at android.view.View.layout(View.java:7035)
at android.view.ViewRoot.performTraversals(ViewRoot.java:1045)
at android.view.ViewRoot.handleMessage(ViewRoot.java:1727)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:123)
at android.app.ActivityThread.main(ActivityThread.java:4627)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:521)
at com.android.internal.os.ZygoteInit
$MethodAndArgsCaller.run(ZygoteInit.java:868)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:
626)
at dalvik.system.NativeStart.main(Native Method)
And the third time from onMeasure again.
Firstly, is this expected behaviour?
If it is, then what's the best way of performing potentially expensive
work in ViewBinder#setViewValue?
For example, retrieving the results of another cursor whcih is used to
construct the bound view.
Or am I approaching this from entirely the wrong view point?
William
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