layout-animation | 易学教程

How can I start layoutAnimation when(before) leaving an activity

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问题 I have a LinearLayout View in my activity. When I press back button I want LinearLayout's children to slide out. I have the following code which doesn't do anything: private void SlideOut() { LayoutAnimationController controller = AnimationUtils.loadLayoutAnimation(this, R.anim.layout_animation_row_slide_out); Animation animation=controller.getAnimation(); animation.setFillAfter(true); LinearLayout menuLayout =((LinearLayout)findViewById(R.id.menuLayout)); menuLayout.setLayoutAnimation

How can I start layoutAnimation when(before) leaving an activity

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ListView within a listview

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问题 I have a parent ListView shown with items based on a custom layout. When a user clicks on any item then I need to add a child ListView to that item and should display the overall item of the parent ListView with expanding animation. [All data need to be added dynamically] Any suggestions.... 回答1: Simple you can add your item in a layout (via xml or code) and show(hide) with animation. Here is example from Udinic. It had listview item expand with animation and require API level only 4+. This

How to apply android layout animation only to children above a certain index?

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问题 I have a ListView containing a series of notes. Currently I use a layout animation to slide all the notes in from the side when the list first loads; this works perfectly. However, I'm trying to figure out how to apply a layout animation only to list items below a certain point. Say I delete an item on the list: I'd like all items below it to shift up into the deleted note's old spot. I've tried finding a way to customize the animation delays or interpolators by child index but haven't found

change animateLayoutChanges property using java code

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问题 I'm working on a android application which is use layout change animations. what i want to know is, is there any one know how to change the "andorid:animateLayoutChanges" proberty using java code. my current value is android:animateLayoutChanges="false" I want to change it to "true" in activity onResume() method. 回答1: Use setLayoutTransition() method in your code: LayoutTransition layoutTransition = new LayoutTransition(); //or, if previously enabled in xml, use getLayoutTransition() //enable

change animateLayoutChanges property using java code

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I'm working on a android application which is use layout change animations. what i want to know is, is there any one know how to change the "andorid:animateLayoutChanges" proberty using java code. my current value is android:animateLayoutChanges="false" I want to change it to "true" in activity onResume() method. Use setLayoutTransition() method in your code: LayoutTransition layoutTransition = new LayoutTransition(); //or, if previously enabled in xml, use getLayoutTransition() //enable animation setLayoutTransition(layoutTransition); //disable animation setLayoutTransition(null); source:

How do I use a GridLayoutAnimation in a RecyclerView?

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I'm trying to replace my GridView with the new RecyclerView (using GridLayoutManager) but it seems like it doesn't cope well with gridLayoutAnimation ( ClassCastException: LayoutAnimationController$AnimationParameters cannot be cast to GridLayoutAnimationController$AnimationParameters ). It works with a regular layout animation, but because it's a grid, it takes too long to complete on tablets. What I'm trying to accomplish is similar to Hierarchical Timing . If you look at the example video, it shows the layout animation go from top-left to down-right diagonally. A regular layout animation

How to move a view to another view using animation in Android?

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I have a circle at the center of the screen inside which there's an ImageView + TextView . I have another two ImageView + TextView , one at the top and another at bottom of the screen. My requirement is : I want a copy of the top ImageView + TextView and a copy of the bottom ImageView + TextView to move in animation into the center of the circle, thereby changing the value of the textView inside the circle. For example: Say top textView has value 200 and bottom textview has value 300. I want a portion of those values (say 100 or 150) to animate and move into the circle, but the original values

Can LayoutAnimationController animate only specified Views

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Is it possible to override Android's LayoutAnimationController in such a way that only certain child View s that I specify inside a ViewGroup will animate? My goal is to choose an arbitrary set of the child views based on the current state of the Activity and animate them with the same animation at exactly the same time, then at a later time choose a different arbitrary set of child views and do the same thing. I would like to be able to do this continually until the Activity is finished running. So far I have looked at and dismissed a couple of options: Calling startAnimation(Animation) the

How do I use a GridLayoutAnimation in a RecyclerView?

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问题 I'm trying to replace my GridView with the new RecyclerView (using GridLayoutManager) but it seems like it doesn't cope well with gridLayoutAnimation ( ClassCastException: LayoutAnimationController$AnimationParameters cannot be cast to GridLayoutAnimationController$AnimationParameters ). It works with a regular layout animation, but because it's a grid, it takes too long to complete on tablets. What I'm trying to accomplish is similar to Hierarchical Timing. If you look at the example video,