Error when using animated transition during navigation on Android 21 and 22 #5674
Description
Tell us about the problem
An error is thrown if using slide animation during navigation
Which platform(s) does your issue occur on?
Android
Please provide the following version numbers that your issue occurs with:
- CLI: 4.0.0
- Cross-platform modules: 4.0.0
- Runtime(s): 4.0.0
- Plugin(s): N/A
Is there code involved? If so, please share the minimal amount of code needed to recreate the problem.
Create a new {N} application using CLI 4.0.0:
tns create my-app --tsc
On the main page add a button with a tap event calling into a function that will navigate to a second page:
public navigateToSecondPage(): void {
topmost().navigate({
moduleName: "component/component-page",
animated: true,
transition: {
name: "slide",
duration: 200,
curve: "ease"
}
});
}
In the second page view model constructor try to open some url (opening the url doesn't necessarily need to be done inside the constructor - the problem occurs also if this is done inside a click of a button):
import { Observable } from "tns-core-modules/data/observable";
import { openUrl } from "utils/utils";
export class ComponentViewModel extends Observable {
constructor() {
super();
openUrl("https://www.google.com");
}
}
On Android API levels 21 and 22, the following exception is thrown:
W/System.err(16021): java.lang.NullPointerException: Attempt to read from field 'int android.app.Fragment.mContainerId' on a null object reference
W/System.err(16021): at android.app.BackStackRecord$1.onPreDraw(BackStackRecord.java:1127)
W/System.err(16021): at android.view.ViewTreeObserver.dispatchOnPreDraw(ViewTreeObserver.java:847)
W/System.err(16021): at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1956)
W/System.err(16021): at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1054)
W/System.err(16021): at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5779)
W/System.err(16021): at android.view.Choreographer$CallbackRecord.run(Choreographer.java:767)
W/System.err(16021): at android.view.Choreographer.doCallbacks(Choreographer.java:580)
W/System.err(16021): at android.view.Choreographer.doFrame(Choreographer.java:550)
W/System.err(16021): at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:753)
W/System.err(16021): at android.os.Handler.handleCallback(Handler.java:739)
W/System.err(16021): at android.os.Handler.dispatchMessage(Handler.java:95)
W/System.err(16021): at android.os.Looper.loop(Looper.java:135)
W/System.err(16021): at android.app.ActivityThread.main(ActivityThread.java:5221)
W/System.err(16021): at java.lang.reflect.Method.invoke(Native Method)
W/System.err(16021): at java.lang.reflect.Method.invoke(Method.java:372)
W/System.err(16021): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
W/System.err(16021): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
If I remove the animated: true or the slide transition when navigating the issue will not manifest.