I am trying to animate 2 Fragments [Splash Fragment , Fragment 1]
While the transition there is a white blank screen for small milli Secs which should not be there
The code of Animation Resource File : -
<set xmlns:android="http://schemas.android.com/apk/res/android">
<translate android:fromYDelta="100%" android:toXDelta= "0%" android:duration = "250"/>
</set>
This file I was adding in Navigation file for a action in the field of enter Anim
The navigation from my splash Fragment is as follows:
Handler().postDelayed({findNavController().navigate(R.id.action_splashScreen_to_onBording)},3000)
As mentioned the basic problem is while the Transition there is a small window of few milli secs where a white screen is appearing and spoiling the view . How do I remove it?
Thanks in advance
As I can not make sense out of you animation file which is fromYDelta, toXDelta, which are to opposite things. So, I am considering you have meant fromYDelta toYDelta, which will make the fragment slide from bottom to top.
Now, about the answer. When setting up animations on navigation you have to create an exit animation as well as enter animation. Otherwise you'll face this problem of white screen.
So, what you can do is add the below animation as exit animation.
<set xmlns:android="http://schemas.android.com/apk/res/android">
<translate android:fromYDelta="0%" android:toYDelta= "-100%" android:duration = "450"/>
</set>
It will make the splash fragment slide upwards as well, but slower than the fragment1. And empty white screen will not be shown.
Related
To see my humidityImageView I need to scroll down a little bit.
When I apply this animation:
ObjectAnimator objectAnimator = ObjectAnimator.ofFloat(humidityImageView, View.Y,40);
objectAnimator.setDuration(2000);
objectAnimator.setRepeatCount(ValueAnimator.INFINITE);
objectAnimator.start();
it starts fromt the top of the screen, but not from the position of the humidityImageView in my ConstraintLayout.
How to make animation starts from the initial view position?
All I needed is replace View.Y to View.TRANSLATION_Y
Is there any way we can set the swipe able area in react-native-swiper? For example, from the mock screen, I would like the screen to be swiped only when the user swipe on the area marked by black border.
PS: The default behaviour is to let the screen swipe from any where in the swiper component.
Mock Screen
I'm having a weird behavior here and I can't figure out what's going on. I have a ScrolView with a form and some inputs and labels inside and it seems to only want to scroll when you place your finger (or cursor in the demo) over an input or a switch and it doesn't scroll when placing your finger anywhere else in the ScrollView
I put together an Expo Snack to show the code and if you run in the emulator and attempt to scroll the ScrollView by placing the cursor over one of the labels or on the edges of the ScrollView it won't scroll but if you place the cursor over an input or a switch it scrolls just fine
https://snack.expo.io/#jordanr/weird-scrollview-bahavior
The issue is because Touchable effects in your TouchableWithoutFeedback are blocking the effects of ScrollView, therefore you need to reset your responder by wrapping the Content inside the View
<Content>
<View onStartShouldSetResponder={() => true}>
//... Rest of the code
</View>
</Content>
Also don't use ScrollView since NativeBase uses KeyboardAwareScrollView from the package react-native-keyboard-aware-scroll-view in the <Content/>
I am using the Modal component from react-native to creat a slide up menu for users to select. The issue with this is, if you wish to dim the background and animate with 'slide', it does this ugly thing of sliding a dimmed box up the screen, instead of dimming the whole background THEN sliding the view in.
So I tried to solve for this by using two Modals. One modal for the dark background to fade in and second modal to slide in with the menu with a transparent background.
This actually works, but when this.doneDayPicker changes the state of this.state.showModalDayPicker so both modals are no longer visible, <DarkModal> still appears. I'm left with <DarkModal> permanently on the screen.
What can I change to let <DarkModal> dissapear when this.state.showModalDayPicker is changed?
return (
<DarkModal visible={this.state.showModalDayPicker}>
<GoalModalScreen
visible={this.state.showModalDayPicker}
done={this.doneDayPicker}
title='Health benefits'
height={this.state.goalModalHeight}
>
{this.flatList()}
</GoalModalScreen>
</DarkModal>
);
Initially I would say this is because there is no done property on DarkModal like goalModalScreen?
Or use a Ternary Operator
{this.state.showModalDayPicker ? <DarkModal> : undefined}
You might also setup DarkModal's own toggle in state.
{this.state.toggleDarkModal ? <DarkModal> : undefined}
How do i set zoom in and zoom out when click on imageview?I want my program to react when user click on imageview must get large to some extent and can move imageview on that screen and sometime it reduce the size along when it move on touch anywhere on the screen .when click again is go resume original size what do i do?
As far as I know there are two ways.
The first way:
Make a new folder in res called 'anim'. Than make a xml file inside, for example zoomin.xml. Afterwards put the following code inside.
<scale xmlns:android="http://schemas.android.com/apk/res/android"
android:fromXScale="1"
android:toXScale="5"
android:fromYScale="1"
android:toYScale="5"
android:pivotX="50%"
android:pivotY="50%"
android:duration="1000"
android:fillAfter="true">
</scale>
Make another one for zoom out, but with reversed values.
<scale xmlns:android="http://schemas.android.com/apk/res/android"
android:fromXScale="5"
android:toXScale="1"
android:fromYScale="5"
android:toYScale="1"
android:pivotX="50%"
android:pivotY="50%"
android:duration="1000"
android:fillAfter="true">
</scale>
You can change the values according to your needs. I think that they are self-explanatory.
And now in your java code.
ImageView imageView = (imageView)findViewById(R.id.yourImageViewId);
Animation zoomin = AnimationUtils.loadAnimation(this, R.anim.zoomin);
Animation zoomout = AnimationUtils.loadAnimation(this, R.anim.zoomout);
imageView.setAnimation(zoomin);
imageView.setAnimation(zoomout);
Now you only need to keep track which is the current state. And for each state execute this lines of codes:
imageView.startAnimation(zoomin);
and
imageView.startAnimation(zoomout);
For example:
imageView.setOnClickListener(new OnClickListener(){
public void onClick(View v) {
if(!pressed) {
v.startAnimation(zoomin);
pressed = !pressed;
} else {
v.startAnimation(zoomout);
pressed = !pressed;
}
}
});
The other way is described here : http://developer.android.com/training/animation/zoom.html.
You can make this by following this guide easily
http://developer.android.com/training/animation/zoom.html
shortly you should use third imageview which is invisible when the user touches any imageview you want, you can display it by using animation in the imageview which is invisible.