nineoldandroids

在Android上对视图背景颜色进行动画处理

大兔子大兔子 提交于 2020-03-19 21:26:40
3 月,跳不动了?>>> 如何在Android上为视图的背景色变化设置动画? 例如: 我的背景色为红色。 视图的背景颜色变为蓝色。 如何在颜色之间进行平滑过渡? 如果无法通过视图完成此操作,将欢迎使用其他方法。 #1楼 实现此目的的另一种简便方法是使用AlphaAnimation执行淡入。 使您的视图成为ViewGroup 将子视图添加到索引0,具有match_parent布局尺寸 给孩子提供与容器相同的背景 将容器的背景更改为目标颜色 使用AlphaAnimation淡出孩子。 动画完成后删除子级(使用AnimationListener) #2楼 您可以将新的 Property Animation Api 用于彩色动画: int colorFrom = getResources().getColor(R.color.red); int colorTo = getResources().getColor(R.color.blue); ValueAnimator colorAnimation = ValueAnimator.ofObject(new ArgbEvaluator(), colorFrom, colorTo); colorAnimation.setDuration(250); // milliseconds colorAnimation.addUpdateListener

Sliding animation having multiple views synchronization issue

天涯浪子 提交于 2020-01-02 05:04:15
问题 I am trying to make an animation with two textviews. Both are in a relative layout. The functionality of the animation is left textview will go little bit left and at the same time right textview will also go little bit left. I have tried: http://nineoldandroids.com/ and default way. But for both case I am getting a gap during the process. I already put one question but i am not getting any positive reply: Android slider animation is not synchronized Nineoldandroids code: xml file:

NineOldAndroids animation not working on API>10

我的梦境 提交于 2019-12-30 12:24:10
问题 I am using NineOldAndroid library to perform animations. The animations work fine for API<=10. But for API>10 the app force closes. This is my code: import static com.nineoldandroids.view.ViewPropertyAnimator.animate; import android.content.Intent; import android.graphics.Canvas; import android.graphics.PixelFormat; import android.os.Build; import android.os.Bundle; import android.view.KeyEvent; import android.view.View; import android.view.ViewTreeObserver.OnGlobalLayoutListener; import

How to smoothly animate a view up/down based on a drag motion using ObjectAnimator?

一笑奈何 提交于 2019-12-13 17:29:22
问题 I created a view that has a MapFragment that occupies the top 1/3 of the screen and a ListView that occupies the bottom 2/3 of the screen. The ListView has a "handle" directly above its list items that the user can use to drag the entire ListView up or down. Once the user releases their finger off of the screen the ListView should animate to the closet top or bottom border of the entire screen. I have it working so far but the animation is not smooth. There is a noticeable pause, after the

Sliding animation having multiple views synchronization issue

[亡魂溺海] 提交于 2019-12-09 22:21:53
问题 I am trying to make an animation with two textviews. Both are in a relative layout. The functionality of the animation is left textview will go little bit left and at the same time right textview will also go little bit left. I have tried: http://nineoldandroids.com/ and default way. But for both case I am getting a gap during the process. I already put one question but i am not getting any positive reply: Android slider animation is not synchronized Nineoldandroids code: xml file:

A/Looper: Could not create wake pipe. errno=24

一世执手 提交于 2019-12-06 21:28:49
问题 We're building an app that does a lot of animations and downloads a lot of images. After a certain amount of transactions (a predictable number), the app is crashing with the error: A/Looper: Could not create wake pipe. errno=24 We don't use Looper in our code, but a few of the libraries we use do use Looper: ActionBarSherlock: I don't think this is the culprit facebook: I don't think this is the culprit nineoldandroid: This animation library could be the culprit volley: This is probably not

Sliding animation having multiple views synchronization issue

左心房为你撑大大i 提交于 2019-12-05 08:27:52
I am trying to make an animation with two textviews. Both are in a relative layout. The functionality of the animation is left textview will go little bit left and at the same time right textview will also go little bit left. I have tried: http://nineoldandroids.com/ and default way. But for both case I am getting a gap during the process. I already put one question but i am not getting any positive reply: Android slider animation is not synchronized Nineoldandroids code: xml file: <RelativeLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation=

A/Looper: Could not create wake pipe. errno=24

大憨熊 提交于 2019-12-05 02:26:14
We're building an app that does a lot of animations and downloads a lot of images. After a certain amount of transactions (a predictable number), the app is crashing with the error: A/Looper: Could not create wake pipe. errno=24 We don't use Looper in our code, but a few of the libraries we use do use Looper: ActionBarSherlock: I don't think this is the culprit facebook: I don't think this is the culprit nineoldandroid: This animation library could be the culprit volley: This is probably not the culprit Picasso: This could be the culprit Has any body experienced this Looper error with any of

NineOldAndroids animation not working on API>10

北战南征 提交于 2019-12-01 13:22:26
I am using NineOldAndroid library to perform animations. The animations work fine for API<=10. But for API>10 the app force closes. This is my code: import static com.nineoldandroids.view.ViewPropertyAnimator.animate; import android.content.Intent; import android.graphics.Canvas; import android.graphics.PixelFormat; import android.os.Build; import android.os.Bundle; import android.view.KeyEvent; import android.view.View; import android.view.ViewTreeObserver.OnGlobalLayoutListener; import android.view.WindowManager; import android.widget.ImageView; import android.widget.LinearLayout; import

Displaying card flip animation on old android

我怕爱的太早我们不能终老 提交于 2019-11-30 06:21:46
问题 We all know this article of how to create "card filp" animations using new api . But how can I make this on apis < 3.0 ? Update: As long as there is good and easy-to-use libraries like android-FlipView I don't think you really need to go through such hard ways ... 回答1: Found the answer. If you want to do flip animation on ALL ANDROID VERSIONS , use this: Activity layout file: <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com