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Commit 95b6f5bc authored by Danesh Mondegarian's avatar Danesh Mondegarian Committed by Gerrit Code Review
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NotificationPowerWidget : Snap widgets 

Snap widgets in place, rather than allowing partial widgets

Patchset 2 : Register only if necessary
Patchset 3 : New implementation (CustomView)
             Allow free scrolling, snap when stationary

Change-Id: Ie1db349a449a2770e4cfd491a7e7c356130e75a0
parent b29bea8f

packages/SystemUI/src/com/android/systemui/statusbar/powerwidget/PowerWidget.java

+41 −2
Original line number Diff line number Diff line
@@ -31,6 +31,7 @@ import android.util.AttributeSet; 
import android.util.Log;

import android.view.Gravity;

import android.view.LayoutInflater;

import android.view.MotionEvent;

import android.view.View;

import android.view.ViewGroup;

import android.widget.FrameLayout;
@@ -110,7 +111,7 @@ public class PowerWidget extends FrameLayout { 
    private long[] mLongPressVibePattern;



    private LinearLayout mButtonLayout;

    private HorizontalScrollView mScrollView;

    private SnappingScrollView mScrollView;



    public PowerWidget(Context context, AttributeSet attrs) {

        super(context, attrs);
@@ -251,6 +252,44 @@ public class PowerWidget extends FrameLayout { 
        mButtonNames.clear();

    }



    static class SnappingScrollView extends HorizontalScrollView {



        private boolean mSnapTrigger = false;



        public SnappingScrollView(Context context) {

            super(context);

        }



        Runnable mSnapRunnable = new Runnable(){

            @Override

            public void run() {

                int mSelectedItem = ((getScrollX() + (BUTTON_LAYOUT_PARAMS.width / 2)) / BUTTON_LAYOUT_PARAMS.width);

                int scrollTo = mSelectedItem * BUTTON_LAYOUT_PARAMS.width;

                smoothScrollTo(scrollTo, 0);

                mSnapTrigger = false;

            }

        };



        @Override

        protected void onScrollChanged(int l, int t, int oldl, int oldt) {

            super.onScrollChanged(l, t, oldl, oldt);

            if (Math.abs(oldl - l) <= 1 && mSnapTrigger) {

                removeCallbacks(mSnapRunnable);

                postDelayed(mSnapRunnable, 100);

            }

        }



        @Override

        public boolean onTouchEvent(MotionEvent ev) {

            int action = ev.getAction();

            if (action == MotionEvent.ACTION_CANCEL || action == MotionEvent.ACTION_UP) {

                mSnapTrigger = true;

            }

            return super.onTouchEvent(ev);

        }



    }



    private void recreateButtonLayout() {

        removeAllViews();
@@ -271,7 +310,7 @@ public class PowerWidget extends FrameLayout { 
        // we determine if we're using a horizontal scroll view based on a threshold of button counts

        if (mButtonLayout.getChildCount() > LAYOUT_SCROLL_BUTTON_THRESHOLD) {

            // we need our horizontal scroll view to wrap the linear layout

            mScrollView = new HorizontalScrollView(mContext);

            mScrollView = new SnappingScrollView(mContext);

            // make the fading edge the size of a button (makes it more noticible that we can scroll

            mScrollView.setFadingEdgeLength(mContext.getResources().getDisplayMetrics().widthPixels / LAYOUT_SCROLL_BUTTON_THRESHOLD);

            mScrollView.setScrollBarStyle(View.SCROLLBARS_INSIDE_INSET);