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:Main.java

@TargetApi(Build.VERSION_CODES.HONEYCOMB_MR1)
public static ViewPropertyAnimator fadeOut(final View from, int duration) {
    if (from.getVisibility() == View.VISIBLE) {
        from.clearAnimation();/*from w w  w  . j a  v a 2s .  c o  m*/
        final ViewPropertyAnimator animator = from.animate();
        animator.alpha(0f).setDuration(duration).setListener(new AnimatorListenerAdapter() {
            @Override
            public void onAnimationEnd(Animator animation) {
                from.setVisibility(View.INVISIBLE);
                from.setAlpha(1f);
            }
        });
        return animator;
    }
    return null;
}

From source file:Main.java

public static void fadeAnimation(final View view, final float fromAlpha, final float toAlpha, long duration,
        final Runnable callback) {
    Animation anim = new AlphaAnimation(fromAlpha, toAlpha);
    anim.setDuration(duration);/*from w  w  w . j a v  a  2s .  c o  m*/
    anim.setAnimationListener(new Animation.AnimationListener() {
        @Override
        public void onAnimationStart(Animation animation) {
        }

        @Override
        public void onAnimationEnd(Animation animation) {
            view.setAlpha(toAlpha);
            if (toAlpha > 0)
                view.setVisibility(View.VISIBLE);
            else
                view.setVisibility(View.GONE);

            if (callback != null)
                callback.run();
        }

        @Override
        public void onAnimationRepeat(Animation animation) {
        }
    });

    view.setVisibility(View.VISIBLE);
    view.startAnimation(anim);
}

From source file:com.adkdevelopment.earthquakesurvival.utils.Utilities.java

/**
 * Makes sliding from the bottom effect on elements in a RecyclerView.
 * @param context from which call is made.
 * @param viewGroup on which to perform the animation.
 *///ww  w.java  2s .  c o  m
public static void animateViewsIn(Context context, ViewGroup viewGroup) {
    if (viewGroup != null) {
        int count = viewGroup.getChildCount();
        float offset = context.getResources().getDimensionPixelSize(R.dimen.offset_y);

        Interpolator interpolator;
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
            interpolator = AnimationUtils.loadInterpolator(context, android.R.interpolator.linear_out_slow_in);
        } else {
            interpolator = AnimationUtils.loadInterpolator(context, android.R.interpolator.linear);
        }

        // loop over the children setting an increasing translation y but the same animation
        // duration + interpolation
        for (int i = 0; i < count; i++) {
            View view = viewGroup.getChildAt(i);
            view.setVisibility(View.VISIBLE);
            view.setTranslationY(offset);
            view.setAlpha(0.85f);
            // then animate back to natural position
            view.animate().translationY(0f).alpha(1f).setInterpolator(interpolator).setDuration(300L).start();
            // increase the offset distance for the next view
            offset *= 1.5f;
        }
    }
}

From source file:com.silentcircle.common.util.ViewUtil.java

/**
 * Sets view's opacity./*from www  .j  av a  2s  .c o m*/
 *
 * @param view View to set opacity to.
 * @param alpha The opacity of the view.
 *
 */
@TargetApi(Build.VERSION_CODES.HONEYCOMB)
public static void setAlpha(View view, float alpha) {
    if (view != null && Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
        view.setAlpha(alpha);
    }
}

From source file:il.ac.shenkar.todos.view.MainActivity.java

/** 
 * Shows the undo task deletion window.//from   ww  w.  ja  va  2 s.c o m
 * 
 * @param viewContainer
 */
public static void showUndo(final View viewContainer) {
    viewContainer.setVisibility(View.VISIBLE);
    viewContainer.setAlpha(1);
    viewContainer.animate().alpha(0.4f).setDuration(5000).withEndAction(new Runnable() {
        @Override
        public void run() {
            viewContainer.setVisibility(View.GONE);
        }
    });
}

From source file:Main.java

public static Bitmap convertViewToBitmap(View comBitmap, int width, int height) {
    Bitmap bitmap = null;/*from  w  w  w.  j a  v  a2  s.c  o  m*/
    if (comBitmap != null) {
        comBitmap.clearFocus();
        comBitmap.setPressed(false);

        boolean willNotCache = comBitmap.willNotCacheDrawing();
        comBitmap.setWillNotCacheDrawing(false);

        // Reset the drawing cache background color to fully transparent
        // for the duration of this operation
        int color = comBitmap.getDrawingCacheBackgroundColor();
        comBitmap.setDrawingCacheBackgroundColor(0);
        float alpha = comBitmap.getAlpha();
        comBitmap.setAlpha(1.0f);

        if (color != 0) {
            comBitmap.destroyDrawingCache();
        }

        int widthSpec = View.MeasureSpec.makeMeasureSpec(width, View.MeasureSpec.EXACTLY);
        int heightSpec = View.MeasureSpec.makeMeasureSpec(height, View.MeasureSpec.EXACTLY);
        comBitmap.measure(widthSpec, heightSpec);
        comBitmap.layout(0, 0, width, height);

        comBitmap.buildDrawingCache();
        Bitmap cacheBitmap = comBitmap.getDrawingCache();
        if (cacheBitmap == null) {
            Log.e("view.ProcessImageToBlur", "failed getViewBitmap(" + comBitmap + ")", new RuntimeException());
            return null;
        }
        bitmap = Bitmap.createBitmap(cacheBitmap);
        // Restore the view
        comBitmap.setAlpha(alpha);
        comBitmap.destroyDrawingCache();
        comBitmap.setWillNotCacheDrawing(willNotCache);
        comBitmap.setDrawingCacheBackgroundColor(color);
    }
    return bitmap;
}

From source file:de.teammartens.android.wattfinder.worker.AnimationWorker.java

public static void fadeIn(final View V, Integer offset, Float Alpha) {
    if (V == null)
        return;//from w  w  w  . j a v  a  2s .c o  m
    if (V.getVisibility() == View.GONE) {
        V.setAlpha(0f);
        V.setVisibility(View.VISIBLE);
    }
    if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
        V.animate().setStartDelay(offset)

                .alpha(Alpha).setDuration(500).setListener(new AnimatorListenerAdapter() {
                    @Override
                    public void onAnimationEnd(Animator animation) {
                        super.onAnimationEnd(animation);
                        V.setVisibility(View.VISIBLE);
                        V.bringToFront();
                    }
                });
    } else {
        V.animate()

                .alpha(Alpha).setDuration(500).setListener(new AnimatorListenerAdapter() {
                    @Override
                    public void onAnimationEnd(Animator animation) {
                        super.onAnimationEnd(animation);
                        V.setVisibility(View.VISIBLE);
                        V.bringToFront();
                    }
                });
    }
}

From source file:net.huannguyen.conductorexample.transition.DetailPushAnimChangeHandler.java

@Override
protected void resetFromView(@NonNull View from) {
    from.setAlpha(1);
}

From source file:com.suyonoion.easystlviewpagerui.CubeOutTransformer.java

public void transformPage(View view, float position) {
    final float rotation = (position < 0 ? 90f : -90f) * Math.abs(position);
    view.setAlpha(rotation > 90f || rotation < -90f ? 0f : 1f);
    view.setPivotX(position < 0f ? view.getWidth() : 0f);
    view.setPivotY(view.getHeight() * 0.5f);
    view.setRotationY(90f * position);//www.  j  a va2s.c  o  m
}

From source file:com.google.android.leanbackjank.presenter.HeaderItemPresenter.java

@Override
public ViewHolder onCreateViewHolder(ViewGroup viewGroup) {
    mUnselectedAlpha = viewGroup.getResources().getFraction(R.fraction.lb_browse_header_unselect_alpha, 1, 1);
    LayoutInflater inflater = (LayoutInflater) viewGroup.getContext()
            .getSystemService(Context.LAYOUT_INFLATER_SERVICE);

    View view = inflater.inflate(R.layout.header_item, null);
    view.setAlpha(mUnselectedAlpha); // Initialize icons to be at half-opacity.

    return new ViewHolder(view);
}