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Commit e26f190c authored by Brian Attwell's avatar Brian Attwell Committed by Android Git Automerger
Browse files

am 7a47bb54: Scale text more gradually via PathInterpolator 

* commit '7a47bb54':
  Scale text more gradually via PathInterpolator
parents 35477d6a 7a47bb54

src/com/android/contacts/widget/MultiShrinkScroller.java

+13 −9
Original line number Diff line number Diff line
@@ -32,6 +32,7 @@ import android.view.ViewGroup; 
import android.view.ViewConfiguration;

import android.view.animation.AnimationUtils;

import android.view.animation.Interpolator;

import android.view.animation.PathInterpolator;

import android.widget.EdgeEffect;

import android.widget.FrameLayout;

import android.widget.LinearLayout;
@@ -148,6 +149,9 @@ public class MultiShrinkScroller extends FrameLayout { 
            0, 0, 0, 1, 0

    };



    private final PathInterpolator mTextSizePathInterpolator

            = new PathInterpolator(0.16f, 0.4f, 0.2f, 1);



    private final int[] mGradientColors = new int[] {0,0xAA000000};

    private GradientDrawable mTitleGradientDrawable = new GradientDrawable(

            GradientDrawable.Orientation.TOP_BOTTOM, mGradientColors);
@@ -872,25 +876,25 @@ public class MultiShrinkScroller extends FrameLayout { 
        }

        mLargeTextView.setPivotY(mLargeTextView.getHeight() / 2);



        final int START_TEXT_SCALING_THRESHOLD_COEFFICIENT = 2;

        final int threshold = START_TEXT_SCALING_THRESHOLD_COEFFICIENT * mMinimumHeaderHeight;

        final int toolbarHeight = getToolbarHeight();

        if (toolbarHeight >= threshold) {

            // Keep the text at maximum size since the header is smaller than threshold.

        final int toolbarHeight = mToolbar.getLayoutParams().height;

        if (toolbarHeight >= mMaximumHeaderHeight) {

            // Everything is full size when the header is fully expanded.

            mLargeTextView.setScaleX(1);

            mLargeTextView.setScaleY(1);

            setInterpolatedTitleMargins(1);

            return;

        }

        final float ratio = (toolbarHeight  - mMinimumHeaderHeight)

                / (float)(threshold - mMinimumHeaderHeight);



        float ratio = (toolbarHeight  - mMinimumHeaderHeight)

                / (float)(mMaximumHeaderHeight - mMinimumHeaderHeight);

        final float minimumSize = mInvisiblePlaceholderTextView.getHeight();

        final float scale = (minimumSize + (mMaximumHeaderTextSize - minimumSize) * ratio)

        final float bezierOutput = mTextSizePathInterpolator.getInterpolation(ratio);

        float scale = (minimumSize + (mMaximumHeaderTextSize - minimumSize) * bezierOutput)

                / mMaximumHeaderTextSize;



        mLargeTextView.setScaleX(scale);

        mLargeTextView.setScaleY(scale);

        setInterpolatedTitleMargins(ratio);

        setInterpolatedTitleMargins(bezierOutput);

    }



    /**