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bluemyria/android.017.java

Last active March 19, 2018 10:06
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Android - 017 - Animations
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android.017.java
//////////////////////////////////////////////////////////////////////////////////////////////
// in der Activity
//////////////////////////////////////////////////////////////////////////////////////////////
public class MainActivity extends AppCompatActivity {
private Button btn;
private ImageView bild;
private Animation animEinklappen, animAusklappen;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
btn = findViewById(R.id.btn);
btn.setOnClickListener(new myOCL());
bild = findViewById(R.id.bild);
animEinklappen = AnimationUtils.loadAnimation(this,R.anim.einklappen);
animAusklappen = AnimationUtils.loadAnimation(this,R.anim.ausklappen);
animEinklappen.setAnimationListener(new myAnimListener());
}
private class myOCL implements View.OnClickListener {
@Override
public void onClick(View view) {
bild.startAnimation(animEinklappen);
btn.startAnimation(animEinklappen);
}
}
private class myAnimListener implements Animation.AnimationListener {
@Override
public void onAnimationStart(Animation animation) {
}
@Override
public void onAnimationEnd(Animation animation) {
if (animation == animEinklappen) {
bild.startAnimation(animAusklappen);
btn.startAnimation(animAusklappen);
}
}
@Override
public void onAnimationRepeat(Animation animation) {
}
}
}
//////////////////////////////////////////////////////////////////////////////////////////////
// in res/anim/ausklappen.xml
//////////////////////////////////////////////////////////////////////////////////////////////
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
<scale
android:pivotX="50%"
android:pivotY="50%"
android:duration="3000"
android:fromXScale="1.0"
android:fromYScale="0.0"
android:toXScale="1.0"
android:toYScale="1.0" />
<alpha
android:fromAlpha="0.0"
android:toAlpha="1.0"
android:duration="3000" />
</set>
//////////////////////////////////////////////////////////////////////////////////////////////
// in res/anim/einklappen.xml
//////////////////////////////////////////////////////////////////////////////////////////////
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
<scale
android:pivotX="50%"
android:pivotY="50%"
android:duration="6000"
android:fromXScale="1.0"
android:fromYScale="1.0"
android:toXScale="0.0"
android:toYScale="1.0" />
<rotate
android:duration="3000"
android:pivotX="50%"
android:pivotY="50%"
android:fromDegrees="0"
android:toDegrees="-360"
android:startOffset="1500"
/>
</set>
//////////////////////////////////////////////////////////////////////////////////////////////
// in res/layout/main_activity.xml
//////////////////////////////////////////////////////////////////////////////////////////////
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="...........w3t2_animationen_mariab.MainActivity">
<ImageView
android:id="@+id/bild"
android:layout_width="274dp"
android:layout_height="223dp"
android:layout_marginEnd="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="184dp"
android:scaleType="fitCenter"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:srcCompat="@drawable/ellas" />
<Button
android:id="@+id/btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Start Animation" />
</android.support.constraint.ConstraintLayout>
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