Example usage for android.view View setAlpha

Introduction

In this page you can find the example usage for android.view View setAlpha.

Prototype

public void setAlpha(@FloatRange(from = 0.0, to = 1.0) float alpha) 

Source Link

Document

Sets the opacity of the view to a value from 0 to 1, where 0 means the view is completely transparent and 1 means the view is completely opaque.

Usage

From source file:com.amaze.filemanager.utils.files.FileUtils.java

public static void crossfadeInverse(final View buttons, final View pathbar) {
    // Set the content view to 0% opacity but visible, so that it is visible
    // (but fully transparent) during the animation.

    pathbar.setAlpha(0f);
    pathbar.setVisibility(View.VISIBLE);

    // Animate the content view to 100% opacity, and clear any animation
    // listener set on the view.
    pathbar.animate().alpha(1f).setDuration(500).setListener(null);
    buttons.animate().alpha(0f).setDuration(500).setListener(new AnimatorListenerAdapter() {
        @Override/* w ww.  j av a2s . co  m*/
        public void onAnimationEnd(Animator animation) {
            buttons.setVisibility(View.GONE);
        }
    });
    // Animate the loading view to 0% opacity. After the animation ends,
    // set its visibility to GONE as an optimization step (it won't
    // participate in layout passes, etc.)
}

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From source file:com.github.captain_miao.viewpager3d.animation.BackgroundToForegroundTransformer.java

@Override
protected void onPostTransform(View view, float position) {
    super.onPostTransform(view, position);
    if (position == -1) {
        view.setScaleX(0.8f);// w w w . j  a  v  a 2s.com
        view.setAlpha(1f);
    } else if (position == 0) {
        view.setAlpha(1f);
    } else if (position == 1) {
        view.setScaleX(0.8f);
        view.setAlpha(1f);
    }
}

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From source file:com.amaze.filemanager.utils.files.FileUtils.java

public static void crossfade(View buttons, final View pathbar) {
    // Set the content view to 0% opacity but visible, so that it is visible
    // (but fully transparent) during the animation.
    buttons.setAlpha(0f);
    buttons.setVisibility(View.VISIBLE);

    // Animate the content view to 100% opacity, and clear any animation
    // listener set on the view.
    buttons.animate().alpha(1f).setDuration(100).setListener(null);
    pathbar.animate().alpha(0f).setDuration(100).setListener(new AnimatorListenerAdapter() {
        @Override/*from w  ww .  j  a v  a 2s .  c  o m*/
        public void onAnimationEnd(Animator animation) {
            pathbar.setVisibility(View.GONE);
        }
    });
    // Animate the loading view to 0% opacity. After the animation ends,
    // set its visibility to GONE as an optimization step (it won't
    // participate in layout passes, etc.)
}

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From source file:org.xbmc.kore.ui.behaviors.FadeOutOnVerticalScrollBehavior.java

@Override
public void onNestedScroll(@NonNull CoordinatorLayout coordinatorLayout, @NonNull View child,
        @NonNull View target, int dxConsumed, int dyConsumed, int dxUnconsumed, int dyUnconsumed, int type) {
    currentScroll += dyConsumed;//from   w w  w .  j av  a 2s . c  o  m
    child.setAlpha((float) ((maxScroll - currentScroll) / (double) maxScroll));
}

---

From source file:com.hitherejoe.animate.util.MorphButtonToDialog.java

@Override
public Animator createAnimator(final ViewGroup sceneRoot, TransitionValues startValues,
        final TransitionValues endValues) {
    Animator changeBounds = super.createAnimator(sceneRoot, startValues, endValues);
    if (startValues == null || endValues == null || changeBounds == null)
        return null;

    Integer startColor = (Integer) startValues.values.get(PROPERTY_COLOR);
    Integer endColor = (Integer) endValues.values.get(PROPERTY_COLOR);

    if (startColor == null || endColor == null)
        return null;

    MorphDrawable background = new MorphDrawable(startColor, 0);
    endValues.view.setBackground(background);

    Animator color = ObjectAnimator.ofArgb(background, background.COLOR, endColor);

    // ease in the dialog's child views (slide up & fade_fast in)
    if (endValues.view instanceof ViewGroup) {
        ViewGroup vg = (ViewGroup) endValues.view;
        float offset = vg.getHeight() / 3;
        for (int i = 0; i < vg.getChildCount(); i++) {
            View v = vg.getChildAt(i);
            v.setTranslationY(offset);//from w w  w .java2  s. c  om
            v.setAlpha(0f);
            v.animate().alpha(1f).translationY(0f).setDuration(150).setStartDelay(150).setInterpolator(
                    AnimationUtils.loadInterpolator(vg.getContext(), android.R.interpolator.fast_out_slow_in));
            offset *= 1.8f;
        }
    }

    AnimatorSet transition = new AnimatorSet();
    transition.playTogether(changeBounds, color);
    transition.setDuration(300);
    transition.setInterpolator(
            AnimationUtils.loadInterpolator(sceneRoot.getContext(), android.R.interpolator.fast_out_slow_in));
    return transition;
}

---

From source file:cn.edu.zucc.list.FabAnimation.MorphFabToDialog.java

@Override
public Animator createAnimator(final ViewGroup sceneRoot, TransitionValues startValues,
        final TransitionValues endValues) {
    Animator changeBounds = super.createAnimator(sceneRoot, startValues, endValues);
    if (startValues == null || endValues == null || changeBounds == null) {
        return null;
    }// ww w.  j av a 2  s . c o m

    Integer startColor = (Integer) startValues.values.get(PROPERTY_COLOR);
    Integer startCornerRadius = (Integer) startValues.values.get(PROPERTY_CORNER_RADIUS);
    Integer endColor = (Integer) endValues.values.get(PROPERTY_COLOR);
    Integer endCornerRadius = (Integer) endValues.values.get(PROPERTY_CORNER_RADIUS);

    if (startColor == null || startCornerRadius == null || endColor == null || endCornerRadius == null) {
        return null;
    }

    MorphDrawable background = new MorphDrawable(startColor, startCornerRadius);
    endValues.view.setBackground(background);

    Animator color = ObjectAnimator.ofArgb(background, background.COLOR, endColor);
    Animator corners = ObjectAnimator.ofFloat(background, background.CORNER_RADIUS, endCornerRadius);

    // ease in the dialog's child views (slide up & fade in)
    if (endValues.view instanceof ViewGroup) {
        ViewGroup vg = (ViewGroup) endValues.view;
        float offset = vg.getHeight() / 3;
        for (int i = 0; i < vg.getChildCount(); i++) {
            View v = vg.getChildAt(i);
            v.setTranslationY(offset);
            v.setAlpha(0f);
            v.animate().alpha(1f).translationY(0f).setDuration(150).setStartDelay(150).setInterpolator(
                    AnimationUtils.loadInterpolator(vg.getContext(), android.R.interpolator.fast_out_slow_in))
                    .start();
            offset *= 1.8f;
        }
    }

    AnimatorSet transition = new AnimatorSet();
    transition.playTogether(changeBounds, corners, color);
    transition.setDuration(300);
    transition.setInterpolator(
            AnimationUtils.loadInterpolator(sceneRoot.getContext(), android.R.interpolator.fast_out_slow_in));
    return transition;
}

---

From source file:com.liyu.huahui.ui.widgets.MorphFabToDialog.java

@RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
@Override/*from ww  w  . j a  v  a 2  s . co m*/
public Animator createAnimator(final ViewGroup sceneRoot, TransitionValues startValues,
        final TransitionValues endValues) {
    Animator changeBounds = super.createAnimator(sceneRoot, startValues, endValues);
    if (startValues == null || endValues == null || changeBounds == null) {
        return null;
    }

    Integer startColor = (Integer) startValues.values.get(PROPERTY_COLOR);
    Integer startCornerRadius = (Integer) startValues.values.get(PROPERTY_CORNER_RADIUS);
    Integer endColor = (Integer) endValues.values.get(PROPERTY_COLOR);
    Integer endCornerRadius = (Integer) endValues.values.get(PROPERTY_CORNER_RADIUS);

    if (startColor == null || startCornerRadius == null || endColor == null || endCornerRadius == null) {
        return null;
    }

    MorphDrawable background = new MorphDrawable(startColor, startCornerRadius);
    endValues.view.setBackground(background);

    Animator color = ObjectAnimator.ofArgb(background, background.COLOR, endColor);
    Animator corners = ObjectAnimator.ofFloat(background, background.CORNER_RADIUS, endCornerRadius);

    // ease in the dialog's child views (slide up & fade in)
    if (endValues.view instanceof ViewGroup) {
        ViewGroup vg = (ViewGroup) endValues.view;
        float offset = vg.getHeight() / 3;
        for (int i = 0; i < vg.getChildCount(); i++) {
            View v = vg.getChildAt(i);
            v.setTranslationY(offset);
            v.setAlpha(0f);
            v.animate().alpha(1f).translationY(0f).setDuration(150).setStartDelay(150).setInterpolator(
                    AnimationUtils.loadInterpolator(vg.getContext(), android.R.interpolator.fast_out_slow_in))
                    .start();
            offset *= 1.8f;
        }
    }

    AnimatorSet transition = new AnimatorSet();
    transition.playTogether(changeBounds, corners, color);
    transition.setDuration(300);
    transition.setInterpolator(
            AnimationUtils.loadInterpolator(sceneRoot.getContext(), android.R.interpolator.fast_out_slow_in));
    return transition;
}

---

From source file:com.sinyuk.jianyi.utils.morph.MorphFabToDialog.java

@TargetApi(Build.VERSION_CODES.LOLLIPOP)
@Override//from  w  ww . j a v  a2s  .  c  o  m
public Animator createAnimator(final ViewGroup sceneRoot, TransitionValues startValues,
        final TransitionValues endValues) {
    Animator changeBounds = super.createAnimator(sceneRoot, startValues, endValues);
    if (startValues == null || endValues == null || changeBounds == null) {
        return null;
    }

    Integer startColor = (Integer) startValues.values.get(PROPERTY_COLOR);
    Integer startCornerRadius = (Integer) startValues.values.get(PROPERTY_CORNER_RADIUS);
    Integer endColor = (Integer) endValues.values.get(PROPERTY_COLOR);
    Integer endCornerRadius = (Integer) endValues.values.get(PROPERTY_CORNER_RADIUS);

    if (startColor == null || startCornerRadius == null || endColor == null || endCornerRadius == null) {
        return null;
    }

    MorphDrawable background = new MorphDrawable(startColor, startCornerRadius);
    endValues.view.setBackground(background);

    Animator color = ObjectAnimator.ofArgb(background, background.COLOR, endColor);
    Animator corners = ObjectAnimator.ofFloat(background, background.CORNER_RADIUS, endCornerRadius);

    // ease in the dialog's child views (slide up & fade in)
    if (endValues.view instanceof ViewGroup) {
        ViewGroup vg = (ViewGroup) endValues.view;
        float offset = vg.getHeight() / 3;
        for (int i = 0; i < vg.getChildCount(); i++) {
            View v = vg.getChildAt(i);
            v.setTranslationY(offset);
            v.setAlpha(0f);
            v.animate().alpha(1f).translationY(0f).setDuration(150).setStartDelay(150).setInterpolator(
                    AnimationUtils.loadInterpolator(vg.getContext(), android.R.interpolator.fast_out_slow_in))
                    .start();
            offset *= 1.8f;
        }
    }

    AnimatorSet transition = new AnimatorSet();
    transition.playTogether(changeBounds, corners, color);
    transition.setDuration(300);
    transition.setInterpolator(
            AnimationUtils.loadInterpolator(sceneRoot.getContext(), android.R.interpolator.fast_out_slow_in));
    return transition;
}

---

From source file:com.hitherejoe.animate.util.MorphFabToDialog.java

@Override
public Animator createAnimator(final ViewGroup sceneRoot, TransitionValues startValues,
        final TransitionValues endValues) {
    Animator changeBounds = super.createAnimator(sceneRoot, startValues, endValues);
    if (startValues == null || endValues == null || changeBounds == null) {
        return null;
    }//from w  w  w.  j a va2 s .com

    Integer startColor = (Integer) startValues.values.get(PROPERTY_COLOR);
    Integer startCornerRadius = (Integer) startValues.values.get(PROPERTY_CORNER_RADIUS);
    Integer endColor = (Integer) endValues.values.get(PROPERTY_COLOR);
    Integer endCornerRadius = (Integer) endValues.values.get(PROPERTY_CORNER_RADIUS);

    if (startColor == null || startCornerRadius == null || endColor == null || endCornerRadius == null) {
        return null;
    }

    MorphDrawable background = new MorphDrawable(startColor, startCornerRadius);
    endValues.view.setBackground(background);

    Animator color = ObjectAnimator.ofArgb(background, background.COLOR, endColor);
    Animator corners = ObjectAnimator.ofFloat(background, background.CORNER_RADIUS, endCornerRadius);

    // ease in the dialog's child views (slide up & fade_fast in)
    if (endValues.view instanceof ViewGroup) {
        ViewGroup vg = (ViewGroup) endValues.view;
        float offset = vg.getHeight() / 3;
        for (int i = 0; i < vg.getChildCount(); i++) {
            View v = vg.getChildAt(i);
            v.setTranslationY(offset);
            v.setAlpha(0f);
            v.animate().alpha(1f).translationY(0f).setDuration(150).setStartDelay(150).setInterpolator(
                    AnimationUtils.loadInterpolator(vg.getContext(), android.R.interpolator.fast_out_slow_in));
            offset *= 1.8f;
        }
    }

    AnimatorSet transition = new AnimatorSet();
    transition.playTogether(changeBounds, corners, color);
    transition.setDuration(300);
    transition.setInterpolator(
            AnimationUtils.loadInterpolator(sceneRoot.getContext(), android.R.interpolator.fast_out_slow_in));
    return transition;
}

---

From source file:me.panpf.tool4a.widget.DepthPageTransformer.java

@SuppressLint("NewApi")
@Override/* ww  w .j  a v a  2s  . c  o m*/
public void transformPage(View view, float position) {
    int pageWidth = view.getWidth();
    if (position < -1) { // [-Infinity,-1)
        // This page is way off-screen to the left.
        view.setAlpha(0);
    } else if (position <= 0) { // [-1,0]
        // Use the default slide transition when
        // moving to the left page
        view.setAlpha(1);
        view.setTranslationX(0);
        view.setScaleX(1);
        view.setScaleY(1);
    } else if (position <= 1) { // (0,1]
        // Fade the page out.
        view.setAlpha(1 - position);
        // Counteract the default slide transition
        view.setTranslationX(pageWidth * -position);
        // Scale the page down (between MIN_SCALE and 1)
        float scaleFactor = MIN_SCALE + (1 - MIN_SCALE) * (1 - Math.abs(position));
        view.setScaleX(scaleFactor);
        view.setScaleY(scaleFactor);
    } else { // (1,+Infinity]
        // This page is way off-screen to the right.
        view.setAlpha(0);
    }
}

---

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