Android Development (43) animated demo, will run the villain, run from the left side of the screen to the right

Want to make an animation, a will run the villain, from the right side of the screen to the right, so did a try:

Three steps are required to accomplish this:

1. Do a frame animation (frame animation), composed of a number of pictures, the formation of the villain running continuously.

2. Make a displacement animation so that the villain from left to right to produce movement.

3. Start the animation in OnStart

The following are explained separately:

---The first step------------------

To prepare a picture of multiple actions, write an XML animation:

<?XML version= "1.0" encoding= "Utf-8"?><animation-listxmlns:android= "Http://schemas.android.com/apk/res/android"Android:oneshot= "false" >    <Itemandroid:drawable= "@drawable/loading_iv_00"android:duration= "$">    </Item>    <Itemandroid:drawable= "@drawable/loading_iv_01"android:duration= "$">    </Item>    <Itemandroid:drawable= "@drawable/loading_iv_02"android:duration= "$">    </Item>    <Itemandroid:drawable= "@drawable/loading_iv_03"android:duration= "$">    </Item>    <Itemandroid:drawable= "@drawable/loading_iv_04"android:duration= "$">    </Item>    <Itemandroid:drawable= "@drawable/loading_iv_05"android:duration= "$">    </Item>    <Itemandroid:drawable= "@drawable/loading_iv_06"android:duration= "$">    </Item>    <Itemandroid:drawable= "@drawable/loading_iv_07"android:duration= "$">    </Item>    <Itemandroid:drawable= "@drawable/loading_iv_08"android:duration= "$">    </Item>    <Itemandroid:drawable= "@drawable/loading_iv_09"android:duration= "$">    </Item>    <Itemandroid:drawable= "@drawable/loading_iv_10"android:duration= "$">    </Item></animation-list>

Code:

    @Override    protectedvoid  onCreate (Bundle savedinstancestate) {         Super . OnCreate (savedinstancestate);        Setcontentview (R.layout.activity_main);         = (ImageView) Findviewbyid (r.id.imageview1);        Imageview1.setimageresource (r.anim.loading);        Imageview1.setvisibility (View.gone);         = (animationdrawable) imageview1.getdrawable ();        Manimationdrawable.setoneshot (false);    }

---The second step-----------------------

Write the code for the Displacement animation:

         New Translateanimation (animation.relative_to_parent, -0.2f,                1, animation.relative_to_self, 0,                0);        Translate.setduration (+);        Translate.setrepeatcount (animation.infinite);

When the meaning of this sentence is moved, the Y axis does not change relative to the parent container's x-coordinate, and always loops

---The third step--------------------------

Start the animation, paste the full code:

 PackageCom.example.demo_run;Importandroid.app.Activity;Importandroid.graphics.drawable.AnimationDrawable;ImportAndroid.os.Bundle;ImportAndroid.view.View;ImportAndroid.view.ViewTreeObserver;Importandroid.view.animation.Animation;Importandroid.view.animation.TranslateAnimation;ImportAndroid.widget.ImageView; Public classMainactivityextendsActivity {ImageView imageView1;    Animationdrawable manimationdrawable; @Overrideprotected voidonCreate (Bundle savedinstancestate) {Super. OnCreate (savedinstancestate);        Setcontentview (R.layout.activity_main); ImageView1=(ImageView) Findviewbyid (R.ID.IMAGEVIEW1);        Imageview1.setimageresource (r.anim.loading);        Imageview1.setvisibility (View.gone); Manimationdrawable=(animationdrawable) imageview1.getdrawable (); Manimationdrawable.setoneshot (false); } @Overrideprotected voidOnStart () {startanimation (); Super. OnStart (); }    Private voidstartanimation () {Manimationdrawable.start (); Animation Translate=NewTranslateanimation (Animation.relative_to_parent, -0.2f, Animation.relative_to_parent,1, animation.relative_to_self, 0, Animation.relative_to_self,0); Translate.setduration (3000);        Translate.setrepeatcount (Animation.infinite);        Imageview1.startanimation (translate);    Imageview1.setvisibility (view.visible); }}

Page layout:

<relativelayout xmlns:android= "http://schemas.android.com/apk/res/android"    xmlns:tools= "http// Schemas.android.com/tools "    android:layout_width=" Match_parent "    android:layout_height = "Match_parent"    android:background= "#3F99C3"    tools:context= ". Mainactivity ">    <ImageView        android:id=" @+id/imageview1 "        android:layout_ Width= "Wrap_content"        android:layout_height= "Wrap_content"        android:layout_ Alignparentbottom= "true"        android:layout_alignparentleft= "true"/></relativelayout >

---last-------------------

Demo code download.

Android Development (43) animated demo, will run the villain, run from the left side of the screen to the right