Animating the folder title & page indicator when a multi-page folder (b7e15adc) · Commits · e / os / BlissLauncher3

res/layout/user_folder.xml

+12 −9

Original line number	Diff line number	Diff line
		@@ -45,20 +45,16 @@
		android:id="@+id/folder_footer"
		android:layout_width="match_parent"
		android:layout_height="wrap_content"
		android:orientation="vertical" >

		<include
		android:id="@+id/folder_page_indicator"
		android:layout_width="wrap_content"
		android:layout_height="12dp"
		android:layout_gravity="center_horizontal"
		layout="@layout/page_indicator" />
		android:orientation="horizontal"
		android:paddingLeft="8dp"
		android:paddingRight="8dp" >

		<com.android.launcher3.FolderEditText
		android:id="@+id/folder_name"
		android:layout_width="match_parent"
		android:layout_width="0dp"
		android:layout_height="wrap_content"
		android:layout_gravity="center_vertical"
		android:layout_weight="1"
		android:background="#00000000"
		android:fontFamily="sans-serif-condensed"
		android:gravity="center_horizontal"
		@@ -72,6 +68,13 @@
		android:textColorHint="#ff808080"
		android:textCursorDrawable="@null"
		android:textSize="14sp" />

		<include
		android:id="@+id/folder_page_indicator"
		android:layout_width="wrap_content"
		android:layout_height="12dp"
		android:layout_gravity="center_vertical"
		layout="@layout/page_indicator" />
		</LinearLayout>

		</com.android.launcher3.Folder>
		No newline at end of file

src/com/android/launcher3/Folder.java

+46 −3

Original line number	Diff line number	Diff line
		@@ -89,6 +89,8 @@ public class Folder extends LinearLayout implements DragSource, View.OnClickList
		*/
		private static final float ICON_OVERSCROLL_WIDTH_FACTOR = 0.45f;

		public static final int FOOTER_ANIMATION_DURATION = 200;

		private static final int REORDER_DELAY = 250;
		private static final int ON_EXIT_CLOSE_DELAY = 400;
		private static final Rect sTempRect = new Rect();
		@@ -201,10 +203,7 @@ public class Folder extends LinearLayout implements DragSource, View.OnClickList
		InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS \| InputType.TYPE_TEXT_FLAG_CAP_WORDS);

		mFooter = findViewById(R.id.folder_footer);
		updateFooterHeight();
		}

		public void updateFooterHeight() {
		// We find out how tall footer wants to be (it is set to wrap_content), so that
		// we can allocate the appropriate amount of space for it.
		int measureSpec = MeasureSpec.UNSPECIFIED;
		@@ -529,6 +528,36 @@ public class Folder extends LinearLayout implements DragSource, View.OnClickList
		mContent.setFocusOnFirstChild();
		}
		});

		// Footer animation
		if (mContent.getPageCount() > 1 && !mInfo.hasOption(FolderInfo.FLAG_MULTI_PAGE_ANIMATION)) {
		int footerWidth = mContent.getDesiredWidth()
		- mFooter.getPaddingLeft() - mFooter.getPaddingRight();

		float textWidth = mFolderName.getPaint().measureText(mFolderName.getText().toString());
		mFolderName.setTranslationX((footerWidth - textWidth) / 2);
		mContent.setMarkerScale(0);

		// Do not update the flag if we are in drag mode. The flag will be updated, when we
		// actually drop the icon.
		final boolean updateAnimationFlag = !mDragInProgress;
		openFolderAnim.addListener(new AnimatorListenerAdapter() {

		@Override
		public void onAnimationEnd(Animator animation) {
		mFolderName.animate().setDuration(FOOTER_ANIMATION_DURATION).translationX(0);
		mContent.animateMarkers();

		if (updateAnimationFlag) {
		mInfo.setOption(FolderInfo.FLAG_MULTI_PAGE_ANIMATION, true, mLauncher);
		}
		}
		});
		} else {
		mFolderName.setTranslationX(0);
		mContent.setMarkerScale(1);
		}

		openFolderAnim.start();

		// Make sure the folder picks up the last drag move even if the finger doesn't move.
		@@ -805,6 +834,14 @@ public class Folder extends LinearLayout implements DragSource, View.OnClickList
		// Reordering may have occured, and we need to save the new item locations. We do this once
		// at the end to prevent unnecessary database operations.
		updateItemLocationsInDatabaseBatch();

		// Use the item count to check for multi-page as the folder UI may not have
		// been refreshed yet.
		if (getItemCount() <= mContent.itemsPerPage()) {
		// Show the animation, next time something is added to the folder.
		mInfo.setOption(FolderInfo.FLAG_MULTI_PAGE_ANIMATION, false, mLauncher);
		}

		}

		@Override
		@@ -1183,6 +1220,11 @@ public class Folder extends LinearLayout implements DragSource, View.OnClickList
		// Clear the drag info, as it is no longer being dragged.
		mCurrentDragInfo = null;
		mDragInProgress = false;

		if (mContent.getPageCount() > 1) {
		// The animation has already been shown while opening the folder.
		mInfo.setOption(FolderInfo.FLAG_MULTI_PAGE_ANIMATION, true, mLauncher);
		}
		}

		// This is used so the item doesn't immediately appear in the folder when added. In one case
		@@ -1197,6 +1239,7 @@ public class Folder extends LinearLayout implements DragSource, View.OnClickList
		v.setVisibility(VISIBLE);
		}

		@Override
		public void onAdd(ShortcutInfo item) {
		// If the item was dropped onto this open folder, we have done the work associated
		// with adding the item to the folder, as indicated by mSuppressOnAdd being set

src/com/android/launcher3/FolderInfo.java

+5 −0

Original line number	Diff line number	Diff line
		@@ -41,6 +41,11 @@ public class FolderInfo extends ItemInfo {
		*/
		public static final int FLAG_WORK_FOLDER = 0x00000002;

		/**
		* The multi-page animation has run for this folder
		*/
		public static final int FLAG_MULTI_PAGE_ANIMATION = 0x00000004;

		/**
		* Whether this folder has been opened
		*/

src/com/android/launcher3/FolderPagedView.java

+32 −6

Original line number	Diff line number	Diff line
		@@ -20,9 +20,11 @@ import android.annotation.SuppressLint;
		import android.content.Context;
		import android.util.AttributeSet;
		import android.util.Log;
		import android.view.Gravity;
		import android.view.LayoutInflater;
		import android.view.View;
		import android.view.animation.DecelerateInterpolator;
		import android.view.animation.OvershootInterpolator;

		import com.android.launcher3.FocusHelper.PagedFolderKeyEventListener;
		import com.android.launcher3.PageIndicator.PageMarkerResources;
		@@ -44,6 +46,8 @@ public class FolderPagedView extends PagedView {
		private static final int START_VIEW_REORDER_DELAY = 30;
		private static final float VIEW_REORDER_DELAY_FACTOR = 0.9f;

		private static final int PAGE_INDICATOR_ANIMATION_DELAY = 150;

		/**
		* Fraction of the width to scroll when showing the next page hint.
		*/
		@@ -73,7 +77,7 @@ public class FolderPagedView extends PagedView {
		private FocusIndicatorView mFocusIndicatorView;
		private PagedFolderKeyEventListener mKeyListener;

		private View mPageIndicator;
		private PageIndicator mPageIndicator;

		public FolderPagedView(Context context, AttributeSet attrs) {
		super(context, attrs);
		@@ -101,7 +105,7 @@ public class FolderPagedView extends PagedView {
		mFolder = folder;
		mFocusIndicatorView = (FocusIndicatorView) folder.findViewById(R.id.focus_indicator);
		mKeyListener = new PagedFolderKeyEventListener(folder);
		mPageIndicator = folder.findViewById(R.id.folder_page_indicator);
		mPageIndicator = (PageIndicator) folder.findViewById(R.id.folder_page_indicator);
		}

		/**
		@@ -338,11 +342,8 @@ public class FolderPagedView extends PagedView {
		setEnableOverscroll(getPageCount() > 1);

		// Update footer
		int indicatorVisibility = mPageIndicator.getVisibility();
		mPageIndicator.setVisibility(getPageCount() > 1 ? View.VISIBLE : View.GONE);
		if (indicatorVisibility != mPageIndicator.getVisibility()) {
		mFolder.updateFooterHeight();
		}
		mFolder.mFolderName.setGravity(getPageCount() > 1 ? Gravity.START : Gravity.CENTER_HORIZONTAL);
		}

		public int getDesiredWidth() {
		@@ -628,4 +629,29 @@ public class FolderPagedView extends PagedView {
		}
		}
		}

		public void setMarkerScale(float scale) {
		int count = mPageIndicator.getChildCount();
		for (int i = 0; i < count; i++) {
		View marker = mPageIndicator.getChildAt(i);
		marker.animate().cancel();
		marker.setScaleX(scale);
		marker.setScaleY(scale);
		}
		}

		public void animateMarkers() {
		int count = mPageIndicator.getChildCount();
		OvershootInterpolator interpolator = new OvershootInterpolator(4);
		for (int i = 0; i < count; i++) {
		mPageIndicator.getChildAt(i).animate().scaleX(1).scaleY(1)
		.setInterpolator(interpolator)
		.setDuration(Folder.FOOTER_ANIMATION_DURATION)
		.setStartDelay(PAGE_INDICATOR_ANIMATION_DELAY * i);
		}
		}

		public int itemsPerPage() {
		return mMaxItemsPerPage;
		}
		}