Android animation animations with XML files

Source: Internet
Author: User

How to write XML files in rotate

    < Rotate         android:fromdegrees = "0"         android:todegrees= "+350"        android:pivotx= "50%"         Android:pivoty= "50%"        android:duration= "$"/>

*android:todegrees= "+350" positive sign is the direction of rotation, plus is clockwise, minus is counterclockwise

There are three ways to set the value of *android:pivotx

1.android:pivotx= "50" This method uses absolute position positioning (50 of this point on the screen position coordinates)

2.android:pivotx= "50%" This method uses the relative positioning of the control itself

3.android:pivotx= "50%p" This method is positioned relative to the control's parent control

Several other animations are written similar to this

Mainactivity.java

 Public classMainactivityextendsActivity {PrivateImageView ImageView; PrivateButton button_1; PrivateButton button_2; PrivateButton button_3; PrivateButton Button_4; @Overrideprotected voidonCreate (Bundle savedinstancestate) {Super. OnCreate (savedinstancestate);                Setcontentview (R.layout.main); ImageView=(ImageView) Findviewbyid (R.id.imageview); Button_1=(Button) Findviewbyid (r.id.button_1); Button_2=(Button) Findviewbyid (r.id.button_2); Button_3=(Button) Findviewbyid (r.id.button_3); Button_4=(Button) Findviewbyid (r.id.button_4); Alphabuttonlistener Alphabuttonlistener=NewAlphabuttonlistener (); Rotatebuttonlistener Rotatebuttonlistener=NewRotatebuttonlistener (); Scalebuttonlistener Scalebuttonlistener=NewScalebuttonlistener (); Translatebuttonlistener Translatebuttonlistener=NewTranslatebuttonlistener ();        Button_1.setonclicklistener (Alphabuttonlistener);        Button_2.setonclicklistener (Rotatebuttonlistener);        Button_3.setonclicklistener (Scalebuttonlistener);    Button_4.setonclicklistener (Translatebuttonlistener); }    //fade in and fade    Private classAlphabuttonlistenerImplementsOnclicklistener {@Override Public voidOnClick (View v) {//loading an animation file using AnimationutilsAnimation Animation = animationutils.loadanimation (mainactivity. This, R.anim.alpha);        Imageview.startanimation (animation); }    }    //Rotate    Private classRotatebuttonlistenerImplementsOnclicklistener {@Override Public voidOnClick (View v) {Animation Animation= Animationutils.loadanimation (mainactivity. This, r.anim.rotate);        Imageview.startanimation (animation); }    }    //level    Private classTranslatebuttonlistenerImplementsOnclicklistener {@Override Public voidOnClick (View v) {Animation Animation= Animationutils.loadanimation (mainactivity. This, r.anim.translate);        Imageview.startanimation (animation); }    }    //Zoom    Private classScalebuttonlistenerImplementsOnclicklistener {@Override Public voidOnClick (View v) {Animation Animation= Animationutils.loadanimation (mainactivity. This, R.anim.scale);        Imageview.startanimation (animation); }    }}

Create a new Anim folder under the Res directory

Alpha.xml

<?XML version= "1.0" encoding= "Utf-8"?><Setxmlns:android= "Http://schemas.android.com/apk/res/android"Android:interpolator= "@android: Anim/accelerate_interpolator">        <AlphaAndroid:fromalpha= "1.0"Android:toalpha= "0.0"Android:startoffset= "$"android:duration= "$"/></Set>

Rotate.xml

<?XML version= "1.0" encoding= "Utf-8"?><Setxmlns:android= "Http://schemas.android.com/apk/res/android"Android:interpolator= "@android: Anim/accelerate_interpolator">        <Rotateandroid:fromdegrees= "0"android:todegrees= " the"Android:pivotx= "50%"Android:pivoty= "50%"android:duration= " the"/></Set>

Scale.xml

<?XML version= "1.0" encoding= "Utf-8"?><Setxmlns:android= "Http://schemas.android.com/apk/res/android">    < ScaleAndroid:fromxscale= "1.0"Android:toxscale= "0.0"Android:fromyscale= "1.0"Android:toyscale= "0.0"Android:pivotx= "50%"Android:pivoty= "50%"android:duration= "+"/></Set>

Translate.xml

<?XML version= "1.0" encoding= "Utf-8"?><Setxmlns:android= "Http://schemas.android.com/apk/res/android"Android:interpolator= "@android: Anim/accelerate_interpolator">        <TranslateAndroid:fromxdelta= "50%"Android:toxdelta= "100%"Android:fromydelta= "50%"Android:toydelta= "100%"android:duration= "+"/></Set>

Android animation animations with XML files

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