Example usage for android.view View getAlpha

Introduction

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

Prototype

@ViewDebug.ExportedProperty(category = "drawing")
public float getAlpha() 

Source Link

Document

The opacity of the view.

Usage

From source file:Main.java

public static void animHide(final View v) {
    animHide(v, 300, v.getAlpha(), 0, true);
}

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From source file:Main.java

public static Bitmap convertViewToBitmap(View comBitmap, int width, int height) {
    Bitmap bitmap = null;/*  ww w .j a  va2 s.  c  om*/
    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;
}

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From source file:org.onebusaway.android.util.UIUtils.java

/**
 * Shows a view, using animation if the platform supports it
 *
 * @param v                 View to show
 * @param animationDuration duration of animation
 *///ww  w. ja v  a 2  s . c  o m
@TargetApi(14)
public static void showViewWithAnimation(final View v, int animationDuration) {
    // If we're on a legacy device, show the view without the animation
    if (!canAnimateViewModern()) {
        showViewWithoutAnimation(v);
        return;
    }

    if (v.getVisibility() == View.VISIBLE && v.getAlpha() == 1) {
        // View is already visible and not transparent, return without doing anything
        return;
    }

    v.clearAnimation();
    if (canCancelAnimation()) {
        v.animate().cancel();
    }

    if (v.getVisibility() != View.VISIBLE) {
        // Set the content view to 0% opacity but visible, so that it is visible
        // (but fully transparent) during the animation.
        v.setAlpha(0f);
        v.setVisibility(View.VISIBLE);
    }

    // Animate the content view to 100% opacity, and clear any animation listener set on the view.
    v.animate().alpha(1f).setDuration(animationDuration).setListener(null);
}

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From source file:com.carver.paul.truesight.Ui.MainActivity.java

protected void hideClearFab() {
    View fab = findViewById(R.id.fab_clear);
    if (fab.getAlpha() != 0f) {
        fab.animate().alpha(0f).setDuration(150);
    }//from  w w w.  ja  v a  2s . c  o m
}

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From source file:org.onebusaway.android.util.UIUtils.java

/**
 * Prints View visibility information to the log for debugging purposes
 *
 * @param v View to log visibility information for
 *///from ww w  .j ava 2s. co m
@TargetApi(12)
public static void logViewVisibility(View v) {
    if (v != null) {
        if (v.getVisibility() == View.VISIBLE) {
            Log.d(TAG, v.getContext().getResources().getResourceEntryName(v.getId()) + " is visible");
            if (UIUtils.canAnimateViewModern()) {
                Log.d(TAG, v.getContext().getResources().getResourceEntryName(v.getId()) + " alpha - "
                        + v.getAlpha());
            }
        } else if (v.getVisibility() == View.INVISIBLE) {
            Log.d(TAG, v.getContext().getResources().getResourceEntryName(v.getId()) + " is INVISIBLE");
        } else if (v.getVisibility() == View.GONE) {
            Log.d(TAG, v.getContext().getResources().getResourceEntryName(v.getId()) + " is GONE");
        } else {
            Log.d(TAG, v.getContext().getResources().getResourceEntryName(v.getId()) + ".getVisibility() - "
                    + v.getVisibility());
        }
    }
}

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From source file:com.kozhevin.example.carousel.CarouselItemAnimator.java

private void animateAlhaRemove(final View pView, final ViewHolder pHolder) {
    if (pView.getAlpha() > 0.8f) {
        ViewCompat.animate(pView).setDuration(getRemoveDuration()).alpha(0)
                .setListener(new VpaListenerAdapter() {

                    @Override//from  w ww .  j  a v a 2 s  .  co m
                    public void onAnimationEnd(View pView) {
                        afterAnimatedAlfaRemove(pView, pHolder);
                    }
                }).start();
    } else {
        afterAnimatedAlfaRemove(pView, pHolder);
    }

}

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From source file:fr.outadev.skinswitch.DetailActivity.java

/**
 * Creates and displays the skin previews in the containers.
 */// w ww .  j  a  v  a  2s .  co  m
private void setupSkinPreviews() {
    final ImageView img_skin_preview_front = (ImageView) findViewById(R.id.skin_preview_front);
    final ImageView img_skin_preview_back = (ImageView) findViewById(R.id.skin_preview_back);

    (new AsyncTask<Void, Void, Bitmap>() {

        @Override
        protected Bitmap doInBackground(Void... voids) {
            try {
                return skin.getFrontSkinPreview(DetailActivity.this);
            } catch (FileNotFoundException e) {
                e.printStackTrace();
            }

            return null;
        }

        @Override
        protected void onPostExecute(Bitmap bmp) {
            if (bmp != null) {
                img_skin_preview_front.setImageBitmap(bmp);
                colorizeInterface(bmp);
            }

            (new AsyncTask<Void, Void, Bitmap>() {

                @Override
                protected Bitmap doInBackground(Void... voids) {
                    try {
                        return skin.getBackSkinPreview(DetailActivity.this);
                    } catch (FileNotFoundException e) {
                        e.printStackTrace();
                    }

                    return null;
                }

                @Override
                protected void onPostExecute(Bitmap bmp) {
                    if (bmp != null) {
                        img_skin_preview_back.setImageBitmap(bmp);
                    }
                }

            }).execute();
        }

    }).execute();

    img_skin_preview_front.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View view) {
            if (view.getAlpha() == 1.0) {
                Utils.crossfade(img_skin_preview_front, img_skin_preview_back, animTime);
            }
        }

    });

    img_skin_preview_back.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View view) {
            if (view.getAlpha() == 1.0) {
                Utils.crossfade(img_skin_preview_back, img_skin_preview_front, animTime);
            }
        }

    });
}

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From source file:com.mad.splitlist.util.DividerItemDecoration.java

@Override
public void onDraw(Canvas c, RecyclerView parent, RecyclerView.State state) {
    final int offset = (int) (mPaint.getStrokeWidth() / DIVIDE_OFFSET);

    for (int i = 0; i < parent.getChildCount(); i++) {
        final View view = parent.getChildAt(i);
        final RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) view.getLayoutParams();

        final int position = params.getViewAdapterPosition();

        // Draw separator using paint.
        if (position < state.getItemCount()) {
            // apply alpha to support animations
            mPaint.setAlpha((int) (view.getAlpha() * mAlpha));

            float positionY = view.getBottom() + offset + view.getTranslationY();
            // do the drawing
            c.drawLine(view.getLeft() + view.getTranslationX(), positionY,
                    view.getRight() + view.getTranslationX(), positionY, mPaint);
        }//from  ww w.j  a  v  a  2s.co m
    }
}

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From source file:com.carver.paul.truesight.Ui.MainActivity.java

protected void showClearFab() {
    View fab = findViewById(R.id.fab_clear);
    fab.setVisibility(View.VISIBLE);
    if (fab.getAlpha() != 1f) {
        fab.animate().alpha(1f).setDuration(150).setStartDelay(50);
    }/*from w w w  .  ja v a  2  s  .c  o m*/
}

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From source file:moe.yukinoneko.gcomic.module.gallery.external.ExternalGalleryActivity.java

public void toggleSystemUi() {
    boolean isShown = mToolbar.getAlpha() == 1.0f;
    ViewCompat.animate(mToolbar).alpha(isShown ? 0.0f : 1.0f).start();
    ViewCompat.animate(bottomBar).alpha(isShown ? 0.0f : 1.0f)
            .setListener(new ViewPropertyAnimatorListenerAdapter() {
                @Override/*www.ja  v a 2 s .  c o  m*/
                public void onAnimationStart(View view) {
                    super.onAnimationStart(view);

                    if (view.isShown()) {
                        return;
                    }

                    view.setVisibility(View.VISIBLE);
                }

                @Override
                public void onAnimationEnd(View view) {
                    super.onAnimationEnd(view);

                    if (view.getAlpha() == 1.0f) {
                        return;
                    }

                    view.setVisibility(View.INVISIBLE);
                }
            }).start();

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
        mDecorView.setSystemUiVisibility(isShown ? FULL_SCREEN_FLAG : NOT_FULL_SCREEN_FLAG);
    }
}

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