android / 안드로이드 ] slotMechine Animation

res에 animation 폴더를 생성한 후 anim resource file을 만들어 아래와 같이 만들어줍니다.

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
    android:interpolator="@android:anim/linear_interpolator">

    <translate
        android:fromYDelta="-5%p"
        android:toYDelta="5%p"
        android:duration="100"
        android:repeatCount="10"/>
</set>

MainActivity.java

public class MainActivity extends AppCompatActivity {

    private Animation flowAnim;
    private ImageView mSlotMechine;
    private TextView mSlotText;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        init();
    }

    void init(){
        mSlotMechine = (ImageView) findViewById(R.id.activity_main_slot);
        mSlotText = (TextView)findViewById(R.id.activity_main_textview);

        flowAnim = AnimationUtils.loadAnimation(this, R.anim.empty);

        mSlotMechine.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                mSlotText.startAnimation(flowAnim);
            }
        });
    }
}

슬롯머신을 클릭했을 때 startAnimation하도록 만든 간단한 slot machine 애니메이션입니다.

---

여기에 투명도도 바꾸고싶다면 아래와같은 식으로 작성하면 됩니다.

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
    <translate
        android:fromXDelta="100%p"
        android:toXDelta="0%p"
        android:duration = "6000"
        android:repeatCount = "3"
        />

    <alpha
        android:fromAlpha="0.5"
        android:toAlpha="1"
        android:duration="6000"
        android:repeatCount="3"
        />
</set>