From f7f72a404b35b3a19ebd7eb525ab757a3e168cc6 Mon Sep 17 00:00:00 2001 From: vanitasvitae Date: Tue, 21 Jun 2016 12:05:59 +0200 Subject: [PATCH 1/2] Added animations --- app/src/main/res/anim/bottom_bar_down.xml | 6 ++++++ app/src/main/res/anim/bottom_bar_up.xml | 6 ++++++ 2 files changed, 12 insertions(+) create mode 100644 app/src/main/res/anim/bottom_bar_down.xml create mode 100644 app/src/main/res/anim/bottom_bar_up.xml diff --git a/app/src/main/res/anim/bottom_bar_down.xml b/app/src/main/res/anim/bottom_bar_down.xml new file mode 100644 index 00000000..f016fc2f --- /dev/null +++ b/app/src/main/res/anim/bottom_bar_down.xml @@ -0,0 +1,6 @@ + + + + \ No newline at end of file diff --git a/app/src/main/res/anim/bottom_bar_up.xml b/app/src/main/res/anim/bottom_bar_up.xml new file mode 100644 index 00000000..d72c1e0d --- /dev/null +++ b/app/src/main/res/anim/bottom_bar_up.xml @@ -0,0 +1,6 @@ + + + + \ No newline at end of file From 9e5b2b1235dc79b1784a9d27bcc9951170f172e5 Mon Sep 17 00:00:00 2001 From: vanitasvitae Date: Tue, 21 Jun 2016 16:18:19 +0200 Subject: [PATCH 2/2] Blend out bottom bar --- .../ui/BottomBarBehavior.java | 102 ++++++++++++++++++ app/src/main/res/layout/main__app_bar.xml | 4 +- 2 files changed, 105 insertions(+), 1 deletion(-) create mode 100644 app/src/main/java/com/github/dfa/diaspora_android/ui/BottomBarBehavior.java diff --git a/app/src/main/java/com/github/dfa/diaspora_android/ui/BottomBarBehavior.java b/app/src/main/java/com/github/dfa/diaspora_android/ui/BottomBarBehavior.java new file mode 100644 index 00000000..e50799d9 --- /dev/null +++ b/app/src/main/java/com/github/dfa/diaspora_android/ui/BottomBarBehavior.java @@ -0,0 +1,102 @@ +package com.github.dfa.diaspora_android.ui; + +import android.content.Context; +import android.os.Build; +import android.support.design.widget.CoordinatorLayout; +import android.support.v4.view.ViewCompat; +import android.support.v4.view.ViewPropertyAnimatorListener; +import android.support.v4.view.animation.FastOutSlowInInterpolator; +import android.util.AttributeSet; +import android.view.View; +import android.view.animation.Animation; +import android.view.animation.AnimationUtils; +import android.widget.LinearLayout; + +import com.github.dfa.diaspora_android.R; + +/** + * Created by vanitas on 21.06.16. + */ +public class BottomBarBehavior extends CoordinatorLayout.Behavior { + private static final FastOutSlowInInterpolator INTERPOLATOR = new FastOutSlowInInterpolator(); + private boolean mIsAnimatingOut = false; + + public BottomBarBehavior(Context context, AttributeSet attrs) { + super(); + } + + @Override + public boolean onStartNestedScroll(final CoordinatorLayout coordinatorLayout, final LinearLayout child, + final View directTargetChild, final View target, final int nestedScrollAxes) { + return nestedScrollAxes == ViewCompat.SCROLL_AXIS_VERTICAL + || super.onStartNestedScroll(coordinatorLayout, child, directTargetChild, target, nestedScrollAxes); + } + + @Override + public void onNestedScroll(final CoordinatorLayout coordinatorLayout, final LinearLayout child, + final View target, final int dxConsumed, final int dyConsumed, + final int dxUnconsumed, final int dyUnconsumed) { + + super.onNestedScroll(coordinatorLayout, child, target, dxConsumed, dyConsumed, dxUnconsumed, dyUnconsumed); + if (dyConsumed < 0 && !this.mIsAnimatingOut && child.getVisibility() == View.VISIBLE) { + // User scrolled down and the FAB is currently visible -> hide the FAB + animateOut(child); + } else if (dyConsumed > 0 && child.getVisibility() != View.VISIBLE) { + // User scrolled up and the FAB is currently not visible -> show the FAB + animateIn(child); + } + } + + private void animateOut(final LinearLayout linearLayout) { + if (Build.VERSION.SDK_INT >= 14) { + ViewCompat.animate(linearLayout).translationY(168F).alpha(0.0F).setInterpolator(INTERPOLATOR).withLayer() + .setListener(new ViewPropertyAnimatorListener() { + public void onAnimationStart(View view) { + BottomBarBehavior.this.mIsAnimatingOut = true; + } + + public void onAnimationCancel(View view) { + BottomBarBehavior.this.mIsAnimatingOut = false; + } + + public void onAnimationEnd(View view) { + BottomBarBehavior.this.mIsAnimatingOut = false; + view.setVisibility(View.GONE); + } + }).start(); + } else { + Animation anim = AnimationUtils.loadAnimation(linearLayout.getContext(), R.anim.bottom_bar_up); + anim.setInterpolator(INTERPOLATOR); + anim.setDuration(200L); + anim.setAnimationListener(new Animation.AnimationListener() { + public void onAnimationStart(Animation animation) { + BottomBarBehavior.this.mIsAnimatingOut = true; + } + + public void onAnimationEnd(Animation animation) { + BottomBarBehavior.this.mIsAnimatingOut = false; + linearLayout.setVisibility(View.GONE); + } + + @Override + public void onAnimationRepeat(final Animation animation) { + } + }); + linearLayout.startAnimation(anim); + } + } + + private void animateIn(LinearLayout linearLayout) { + linearLayout.setVisibility(View.VISIBLE); + if (Build.VERSION.SDK_INT >= 14) { + ViewCompat.animate(linearLayout).translationY(0).scaleX(1.0F).scaleY(1.0F).alpha(1.0F) + .setInterpolator(INTERPOLATOR).withLayer().setListener(null) + .start(); + } else { + Animation anim = AnimationUtils.loadAnimation(linearLayout.getContext(), R.anim.bottom_bar_down); + anim.setDuration(200L); + anim.setInterpolator(INTERPOLATOR); + linearLayout.startAnimation(anim); + } + } +} \ No newline at end of file diff --git a/app/src/main/res/layout/main__app_bar.xml b/app/src/main/res/layout/main__app_bar.xml index 76406973..62909dab 100644 --- a/app/src/main/res/layout/main__app_bar.xml +++ b/app/src/main/res/layout/main__app_bar.xml @@ -42,13 +42,15 @@ android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_gravity="bottom" - android:theme="@style/AppTheme.AppBarOverlay"> + android:theme="@style/AppTheme.AppBarOverlay" + app:layout_behavior=".ui.BottomBarBehavior">