Android 18th-day notes-simple animation, Android 18th --

Android 18th-day notes-simple animation, Android 18th --

Title: animation Animation 1. Compensation Animation 2. Translation

FromXType: where does the fromXValue start from? 0 indicates the current position toXType, where is the type toXValue, and where is the coordinate fromYType? Where does fromYValue start from, 0 indicates the current position from toYType to the type from toYValue to the coordinates

TranslateAnimation translate = new TranslateAnimation (Animation. RELATIVE_TO_SELF,-2, Animation. RELATIVE_TO_SELF, 2, Animation. RELATIVE_TO_SELF, 0, Animation. RELATIVE_TO_SELF, 1); // sets the display time to translate. setDuration (3000); // The playback resource is an infinite loop of translate. setRepeatCount (Animation. INFINITE); // playback mode. The playback mode is reversed. After the playback is completed, the translate is reversed. setRepeatMode (Animation. REVERSE); // which component is playing, set imageView. setAnimation (translate); // start playing translate. start ();

 

3. Rotate

/** FromDegrees, from which point of view is 0 from the current toDegrees, 270 degrees 1_txtype, X center type * Animation. RELATIVE_TO_SELF implements txvalue. the center point value of 0.5 indicates that the image is set to * tytype, And the Y center type is Animation. RELATIVE_TO_SELF * polictyvalue 0.5f */RotateAnimation rotate = new RotateAnimation (0,360, Animation. RELATIVE_TO_SELF, 0.5f, Animation. RELATIVE_TO_SELF, 3); // The playback display time rotate. setDuration (5000); rotate. setRepeatCount (Animation. INFINITE); rotate. setRepeatMode (Animation. RESTART); imageView. setAnimation (rotate); rotate. start ();

 

4. Zoom

/** FromX, toX, starting from the coordinate address to the coordinate, 0, indicating the current fromY, toY, * rotate txtype, center of rotation * rotate txvalue, type, skip tytype, specified tyvalue */ScaleAnimation scale = new ScaleAnimation (1, 2, 1,-2, Animation. RELATIVE_TO_SELF,-2, Animation. RELATIVE_TO_SELF, 3); // scale the playback display time. setDuration (5000); scale. setRepeatCount (Animation. INFINITE); scale. setRepeatMode (Animation. RESTART); imageView. setAnimation (scale); scale. start ();

 

5. Transparency

/** FromAlpha, starting from what transparency * toAlpha to what transparency ends */AlphaAnimation alpha = new AlphaAnimation (1, 0); // The playback display time alpha. setDuration (1, 2000); alpha. setRepeatCount (Animation. INFINITE); alpha. setRepeatMode (Animation. REVERSE); imageView. setAnimation (alpha); alpha. start ();}

 

6. Set

Is to create

AnimationSet set = new AnimationSet();set.addAnimation(scale);    set.addAnimation(rotate);    set.addAnimation(translate);    set.start();

 

You can play multiple animations.

7. XML configuration

Create an anim file directory under the res/directory

<! -- If the translation value is a number, it indicates the absolute value. If it is a percentage, it indicates that it is a multiple of its own width and height. If it is a percentage Plus p, it indicates that it is a multiple of the width and height of its parent element --> <? Xml version = "1.0" encoding = "UTF-8"?> <Set xmlns: android = "http://schemas.android.com/apk/res/android"> <translate android: fromXDelta = "200%" android: toXDelta = "200%" android: fromYDelta = "-100%" android: toYDelta = "200%" android: duration = "4000" android: repeatCount = "infinite" android: repeatMode = "reverse"/> <rotate android: fromDegrees = "0" android: toDegrees = "360" android: toYScale = "0.0" android: Short Tx = "50%" android: Short ty = "50%" android: duration = "4000" android: repeatCount = "infinite" android: repeatMode = "reverse"/> </set>

 

Load Using the AnimationUtils. load Method

Animation animation = AnimationUtils.loadAnimation(this, R.anim.animation_set);    imageView.startAnimation(animation);

 

8. Property Animation

Generally, code control is used.

/*** Horizontal ** @ param v */public void translate (View v) {/*** parameter 1: Who will play this animation? parameter 2: property name to change the direction of x. Parameter 3: animation execution value */ObjectAnimator objectAnimatrX = ObjectAnimator. ofFloat (imageView, "translationX",-50, 50); ObjectAnimator objectAnimatrY = ObjectAnimator. ofFloat (imageView, "translationY", 0, 60); objectAnimatrX. setDuration (2000); objectAnimatrX. setRepeatCount (ObjectAnimator. INFINITE); objectAnimatrX. setRepeatMode (ObjectAnimator. REVERSE); objectAnimatrX. start ();}/*** conversion ** @ param v */public void rotate (View v) {ObjectAnimator rotateX = ObjectAnimator. ofFloat (imageView, "rotationX", 0,360); ObjectAnimator rotateY = ObjectAnimator. ofFloat (imageView, "rotationY", 0,360); rotateX. setduration( 3000); rotateX. setRepeatMode (Animation. REVERSE); // rotateX. setRepeatCount (Animation. INFINITE); rotateY. setDuration (3000); rotateY. setRepeatMode (Animation. REVERSE); // rotateY. setRepeatCount (Animation. INFINITE); AnimatorSet set = new AnimatorSet (); set. playSequentially (rotateX, rotateY); set. start ();}/*** bloom ** @ param v */public void scale (View v) {ObjectAnimator scaleX = ObjectAnimator. ofFloat (imageView, "scaleX", 2.0f, 5f); ObjectAnimator scaleY = ObjectAnimator. ofFloat (imageView, "scaleY", 2.0f, 5f); scaleX. setDuration (3000); scaleX. setRepeatMode (Animation. REVERSE); scaleX. setRepeatCount (Animation. INFINITE); scaleY. setDuration (3000); scaleY. setRepeatMode (Animation. REVERSE); scaleY. setRepeatCount (Animation. INFINITE); AnimatorSet set = new AnimatorSet (); set. playTogether (scaleX, scaleY); set. start ();}/*** transparent ** @ param v */public void alpha (View v) {ObjectAnimator alpha = ObjectAnimator. ofFloat (imageView, "alpha", 1.0f, 0f); alpha. setDuration (1, 3000); alpha. setRepeatMode (Animation. REVERSE); alpha. setRepeatCount (Animation. INFINITE); alpha. start ();}/*** set ** @ param v */public void set (View v) {/*** parameter 1: Who will play the animation? parameter 2: property name to change the direction of x. Parameter 3: animation execution value */ObjectAnimator objectAnimatrX = ObjectAnimator. ofFloat (imageView, "translationX",-50,100); ObjectAnimator objectAnimatrY = ObjectAnimator. ofFloat (imageView, "translationY",-70,100); objectAnimatrX. setDuration (2000); // objectAnimatrX. setRepeatCount (ObjectAnimator. INFINITE); objectAnimatrX. setRepeatMode (ObjectAnimator. REVERSE); objectAnimatrY. setDuration (2000); // objectAnimatrY. setRepeatCount (ObjectAnimator. INFINITE); objectAnimatrY. setRepeatMode (ObjectAnimator. REVERSE); AnimatorSet set = new AnimatorSet (); // set. playTogether (objectAnimatrX, objectAnimatrY); set. playSequentially (objectAnimatrX, objectAnimatrY); set. start ();}

 

If you need to use XML control, you can create an animator under res \. Create an XML file in this directory.

AnimatorSet set = (AnimatorSet) AnimatorInflater.loadAnimator(myContext,R.anim.property_animator);set.setTarget(myObject);set.start();