Add animation helpers

Author: anod

src/main/java/info/anodsplace/android/anim/AnimatorCollection.java

@@ -0,0 +1,60 @@
+package info.anodsplace.android.anim;
+
+import android.animation.Animator;
+import android.animation.AnimatorListenerAdapter;
+import android.animation.AnimatorSet;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * @author alex
+ * @date 2015-05-25
+ */
+public class AnimatorCollection {
+    private List<Animator> mAnimators;
+    private AnimatorSet mSet;
+
+    public AnimatorCollection() {
+        mAnimators = new ArrayList<>();
+    }
+
+    public void add(Animator anim) {
+        if (anim != null) {
+            mAnimators.add(anim);
+        }
+    }
+
+    public void clear() {
+        mSet = null;
+        mAnimators.clear();
+    }
+
+    public AnimatorSet sequential() {
+        AnimatorSet set = set();
+        set.playSequentially(mAnimators);
+        return set;
+    }
+
+    public AnimatorSet together() {
+        AnimatorSet set = set();
+        set.playTogether(mAnimators);
+        return set;
+    }
+
+    public boolean isEmpty() {
+        return mAnimators.isEmpty();
+    }
+
+    public void addListener(AnimatorListenerAdapter listener) {
+        AnimatorSet set = set();
+        set.addListener(listener);
+    }
+
+    private AnimatorSet set() {
+        if (mSet == null) {
+            mSet = new AnimatorSet();
+        }
+        return mSet;
+    }
+}

src/main/java/info/anodsplace/android/anim/ResizeAnimator.java

@@ -0,0 +1,42 @@
+package info.anodsplace.android.anim;
+
+import android.animation.ValueAnimator;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.LinearLayout;
+
+/**
+ * @author alex
+ * @date 2015-05-25
+ */
+public class ResizeAnimator {
+
+    public static ValueAnimator height(int from, int to, final View view,int duration) {
+        ValueAnimator anim = ValueAnimator.ofInt(from, to);
+        anim.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
+            @Override
+            public void onAnimationUpdate(ValueAnimator valueAnimator) {
+                int val = (Integer) valueAnimator.getAnimatedValue();
+                ViewGroup.LayoutParams layoutParams = view.getLayoutParams();
+                layoutParams.height = val;
+                view.setLayoutParams(layoutParams);
+            }
+        });
+        anim.setDuration(duration);
+        return anim;
+    }
+    public static ValueAnimator margin(int from, int to, final View view,int duration) {
+        ValueAnimator anim = ValueAnimator.ofInt(from, to);
+        anim.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
+            @Override
+            public void onAnimationUpdate(ValueAnimator valueAnimator) {
+                int val = (Integer) valueAnimator.getAnimatedValue();
+                LinearLayout.LayoutParams layoutParams = (LinearLayout.LayoutParams) view.getLayoutParams();
+                layoutParams.topMargin= val;
+                view.setLayoutParams(layoutParams);
+            }
+        });
+        anim.setDuration(duration);
+        return anim;
+    }
+}

src/main/java/info/anodsplace/android/anim/RevealAnimatorCompat.java

@@ -0,0 +1,59 @@
+package info.anodsplace.android.anim;
+
+import android.animation.Animator;
+import android.animation.AnimatorListenerAdapter;
+import android.animation.ValueAnimator;
+import android.os.Build;
+import android.view.View;
+import android.view.ViewAnimationUtils;
+
+/**
+ * @author alex
+ * @date 2015-05-25
+ */
+public class RevealAnimatorCompat {
+    private static final int ANIM_DURATION = 300;
+
+    public static Animator show(final View viewRoot, int x, int y, int delay) {
+        Animator anim;
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
+            int finalRadius = Math.max(viewRoot.getWidth(), viewRoot.getHeight());
+            anim = ViewAnimationUtils.createCircularReveal(viewRoot, x, y, 0, finalRadius);
+            anim.setDuration(ANIM_DURATION);
+        } else {
+            // Kitkat compatibility
+            anim = ValueAnimator.ofInt(0, 1);
+            anim.setDuration(10);
+        }
+        anim.addListener(new AnimatorListenerAdapter() {
+            @Override
+            public void onAnimationStart(Animator animation) {
+                viewRoot.setVisibility(View.VISIBLE);
+            }
+        });
+        anim.setStartDelay(delay);
+        return anim;
+    }
+
+    public static Animator hide(final View viewRoot, int x, int y, int delay) {
+        Animator anim;
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
+            int initialRadius = viewRoot.getWidth();
+            anim = ViewAnimationUtils.createCircularReveal(viewRoot, x, y, initialRadius, 0);
+            anim.setDuration(ANIM_DURATION);
+        } else {
+            // Kitkat compatibility
+            anim = ValueAnimator.ofInt(0, 1);
+            anim.setDuration(10);
+        }
+        anim.addListener(new AnimatorListenerAdapter() {
+            @Override
+            public void onAnimationEnd(Animator animation) {
+                viewRoot.setVisibility(View.INVISIBLE);
+            }
+        });
+        anim.setDuration(ANIM_DURATION);
+        anim.setStartDelay(delay);
+        return anim;
+    }
+}