[Android] frame animations and tweened animations

Display a picture frames by frame, and connect them as animations

Under the res/drawable/ directory, create a xxx.xml file

Add <animation-list> node, set whether to loop Android:oneshot:"false"

Add Entries <item> nodes, set resource android:drawable="@drawable/xxx"

Set execution time,android:duration="100"

Add the corresponding picture frame by frames

Gets the ImageView object, via Findviewbyid ()

Call the ImageView object's setbackgroundresource () to set the background resource, parameter: resource file

Call the Getbackground () method of the ImageView object to get to the animationdrawable Object

The Getbackground () method is executed asynchronously in a separate thread, so sometimes the following code is not playable, it is recommended to be placed in a button click event, or in a screen touch event

Call the animationdrawable object start () method to start playback

Tween Animation

Transparency

Gets the alphaanimation object,new Alphaanimation (), Parameters: from 0.0f transparency, to 1.0f Transparency

The setduration () method of the Alphaanimation object , setting the execution time

Call the startanimation () method of the View object , Parameter:alphaanimation Object

Scaling

Get scaleanimation object,new Scaleanimation (), Parameters:

Original width, wide after change, original high, high after change,animation.relative_to_self,o.5f x to center, Animation.relative_to_self,0.5f y with center

Call the startanimation () method of the View object , Parameter:scaleanimation Object

Rotating

Get rotateanimation object,new Rotateanimation (), Parameters:

Choose from 0 , rotate the degree of rotation , rotate center animation.relative_to_self,o.5f x to center, rotate center animation.relative_to_self,o.5f x to center

Call the startanimation () method of the View object , Parameter:rotateanimation Object

Translation

Get translateanimation object,new Translateanimation (), Parameters:

Relative to parent form animation.relative_to_parent,0.0f

Relative to parent form animation.relative_to_parent,1.0f

Relative to parent form animation.relative_to_parent, 0.0f

Relative to parent form animation.relative_to_parent, 1.0f

Call the startanimation () method of the View object , Parameter:translateanimation Object

Combo Animations

Get animationset object,new out

Get to multiple animated objects above

Call the addanimation () method of the animationset object to Add the animation, Parameters: Animation

You can add it multiple times.

Call the startanimation () method of the View object , Parameter:animationset Object

[Android] frame animations and tweened animations