Animtion of android simple animation

Animtion of android simple animation
Android's simple animation effects include the Animtion class. 1. Implement the animation effect in XML; 2. Implement the animation effect in java code.

Animation-related attributes <喎?http: www.bkjia.com kf ware vc " target="_blank" class="keylink"> VcD4KPHA + Cjx0YWJsZSBib3JkZXI9 "1" width = "1200" cellspacing = "1" cellpadding = "1"> Table 1: SET attributesNameAttributeRemarksAndroid: Movie interpolatorWhether to share the inserterWhen shared, each of the four subnodes uses an insertor.Android: interpolatorSpecifies an animation insertor.Use System ResourcesAndroid: fillEnabled
If it is set to true, both fillAfter and fillBefroe will be true, and the fillBefore and fillAfter attributes will be ignored.Android: fillAfterWhether the animation is applied after the animation endsBooleanAndroid: fillBeforeWhether the animation is applied before the animation starts.BooleanAndroid: repeatModeRepeat mode"Restart" = start from scratch or "reverse" = start from the endAndroid: repeatCountRepeated timesInteger-1 is an infinite loopAndroid: durationAnimation durationIntegerAndroid: startOffsetAnimation time interval (animation duration before execution)LongAndroid: zAdjustmentDefine the z order Transformation of an animation[Normal] or [top] or [bottom]Android: detachWallpaperUnknownBoolean

Here we will explain in detail the attributes of the android: interpolator animation plug-in (the embodiment of the animation speed effect ).

1. @ android: anim/accelerate_decelerate_interpolator: acceleration before deceleration

2. @ android: anim/accelerate_interpolator: acceleration

3. @ android: anim/decelerate_interpolator: deceleration

4. @ android: anim/anticipate_interpolator: first move a point in the opposite direction of the animation and then move the track along the set animation, as shown in.

5. anticipate_overshoot_interpolator: first move a point to the opposite direction of the animation, then move it to the end point in the set direction, and then move it back to the final position. For example:

6. @ android: anim/bounce_interpolator: After an animation is moved to the last position, it will have a rebound effect several times, and the animation will be stopped at the specified position.

7. @ android: anim/cycle_interpolator: animation cycle movement.

8. @ android: anim/linear_interpolator: the animation moves at a constant speed.

9. @ android: anim/overshoot_interpolator: the animation moves in the opposite direction to the last position.

Interpolator object	Resource ID	Function
AccelerateDecelerateInterpolator	@ Android: anim/accelerate_decelerate_interpolator	Acceleration before deceleration
AccelerateInterpolator	@ Android: anim/accelerate_interpolator	Acceleration
AnticipateInterpolator	@ Android: anim/anticipate_interpolator	Let's take a small step back and then speed up.
AnticipateOvershootInterpolator	@ Android: anim/anticipate_overshoot_interpolator	On the basis of the above, a small step beyond the end and then return to the end
BounceInterpolator	@ Android: anim/bounce_interpolator	Final fl Effect
CycleInterpolator	@ Android: anim/cycle_interpolator	Periodic exercise
DecelerateInterpolator	@ Android: anim/decelerate_interpolator	Deceleration
LinearInterpolator	@ Android: anim/linear_interpolator	Uniform speed
OvershootInterpolator	@ Android: anim/overshoot_interpolator	Quickly reach the destination and return to the destination after a small step

For a link to modify the attributes of the animation insertor, click the open link.

Table 2: alpha

Name	Attribute	Remarks
Android: toAlpha	Transparency at animation end	Float [0, 1] 0 indicates completely transparent 1 indicates completely opaque
Android: duration	Animation duration	Integer
Android: fromAlpha	Transparency at the beginning of the animation	Float [0, 1] 0 indicates completely transparent 1 indicates completely opaque

Table 3: SCALE

Name	Attribute	Remarks
Android: fromXScale	Scaling size on the X coordinate at the start of the animation	Float, 0.0 indicates shrinking to none, 1.0 indicates normal scaling, less than 1 indicates shrinking, greater than 1 indicates enlarging
Android: toXScale	Scaling size on X coordinate at animation end	Same as above
Android: fromYScale	Scaling size on Y coordinate at animation start	Same as above
Android: toYScale	Scaling size on Y coordinate at animation end	Same as above
Android: strongtx	Start position of the animation relative to X of the object	[0%, 100%], 50% indicates the center
Android: policty	Start position of the animation relative to Y of the object	0%, 100%], 50% indicates the center
Android: duration	Same as set	Same as set

Table 4: TRANSLATE

Name	Attribute	Remarks
Android: fromXDelta	Position on X coordinate at animation start	By default, integer takes itself as the reference object.
Android: toXDelta	Position on X coordinate at animation end	By default, integer takes itself as the reference object.
Android: fromYDelta	Position on Y coordinate at animation start	By default, integer takes itself as the reference object.
Android: toYDelta	Position on Y coordinate at animation end	By default, integer takes itself as the reference object.

Table 5: ROTATE

Name	Attribute	Remarks
Android: fromDegrees	The angle of the object at the beginning of the animation.	Negative: clockwise rotation, positive: clockwise rotation
Android: toDegrees	The angle of the object at the end of the animation (up to 360 degrees)	Same as above
Android: strongtx	Start position of the animation relative to X of the object	[0%, 100%], 50% indicates the center
Android: policty	Start position of the animation relative to Y of the object	[0%, 100%], 50% indicates the center

1. Implement alpha in. XML:

Note: If you need to set the animation to android: fillAfter = "true"
Android: fillBefore = "false" must be Which is valid only. For example, the valid settings are as follows:

Then the above animation stays on the last frame.

Ii. Code Implementation alpha

Animation anim = new AlphaAnimation(0f, 1.0f);anim.setDuration(2000);anim.setRepeatCount(Animation.INFINITE);anim.setRepeatMode(Animation.RESTART);

Iii. scale with XML

  
   
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    Android: equalty = "50.0%" android: repeatCount = "3" android: repeatMode = "reverse" android: toXScale = "1.0" android: toYScale = "1.0"/>
   
  

Iv. Code Implementation scale

Animation anim1 = new ScaleAnimation(0.5f, 1.0f, 0.5f, 1.0f, 0.5f, 0.5f);anim1.setDuration(2000);anim1.setRepeatCount(3);anim1.setRepeatMode(Animation.REVERSE);anim1.setInterpolator(this, interpolator.accelerate_decelerate);anim1.setFillAfter(true);

V. Implement stranslate in XML

Code 6: Implement Stranslate

Animation animTranlate = new TranslateAnimation(0, 0, 0, 400);animTranlate.setDuration(2000);animTranlate.setFillAfter(true);animTranlate.setInterpolator(this, interpolator.bounce);text.startAnimation(animTranlate);

VII. Implement rotate in XML

  
      
   
    
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8. Code Implementation rotate
    

    

    
Animation animRotate = new RotateAnimation (0f, 360f, Animation. RELATIVE_TO_SELF, 0.5f, Animation. RELATIVE_TO_SELF, 0.5f); animRotate. setDuration (1, 2000); animRotate. setInterpolator (this, interpolator. bounce); animRotate. setFillAfter (true); animRotate. setStartOffset (2000); // specifies the animation duration text before execution. startAnimation (animRotate );
    
9. Implementation of composite Animation
    

    

    
     
             
      
     
    

    
10. Code-based composite Animation
    

    

    
Animation anim1 = new ScaleAnimation(0.5f, 1.0f, 0.5f, 1.0f, 0.5f, 0.5f);anim1.setDuration(2000);anim1.setRepeatCount(3);anim1.setRepeatMode(Animation.REVERSE);anim1.setInterpolator(this, interpolator.accelerate_decelerate);anim1.setFillAfter(true);// text.setAnimation(anim1);Animation animTranlate = new TranslateAnimation(0, 0, 0, 400);animTranlate.setDuration(2000);animTranlate.setFillAfter(true);animTranlate.setInterpolator(this, interpolator.bounce);// text.startAnimation(animTranlate);Animation animRotate = new RotateAnimation(0f, 360f,Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF,0.5f);animRotate.setDuration(2000);animRotate.setInterpolator(this, interpolator.bounce);animRotate.setFillAfter(true);// text.startAnimation(animRotate);AnimationSet animationSet = new AnimationSet(true);animationSet.addAnimation(animRotate);animationSet.addAnimation(animTranlate);animationSet.addAnimation(anim1);text.startAnimation(animationSet);
    
End!