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Adding hardware layers to All Apps

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- splitting up the "holo" outlines and the icons into separate views
- enabling hardware layers on each of the views
This commit is contained in:
Michael Jurka
2011-02-01 17:53:59 -08:00
parent 98ed6bbec7
commit 8245a8685f
8 changed files with 343 additions and 101 deletions
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145
src/com/android/launcher2/PagedViewCellLayout.java
View File

@@ -17,7 +17,6 @@
package com.android.launcher2;
import android.content.Context;
import android.graphics.Rect;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.View;
@@ -29,13 +28,9 @@ import android.view.ViewGroup;
* which span multiple cells into a grid-like layout. Also supports dimming
* to give a preview of its contents.
*/
public class PagedViewCellLayout extends ViewGroup {
public class PagedViewCellLayout extends ViewGroup implements Page {
static final String TAG = "PagedViewCellLayout";
private float mHolographicAlpha;
private boolean mCenterContent;
private int mCellCountX;
private int mCellCountY;
private int mCellWidth;
@@ -43,6 +38,8 @@ public class PagedViewCellLayout extends ViewGroup {
private int mWidthGap;
private int mHeightGap;
private static int sDefaultCellDimensions = 96;
protected PagedViewCellLayoutChildren mChildren;
private PagedViewCellLayoutChildren mHolographicChildren;
public PagedViewCellLayout(Context context) {
this(context, null);
@@ -61,20 +58,25 @@ public class PagedViewCellLayout extends ViewGroup {
mCellWidth = mCellHeight = sDefaultCellDimensions;
mCellCountX = LauncherModel.getCellCountX();
mCellCountY = LauncherModel.getCellCountY();
mHolographicAlpha = 0.0f;
mWidthGap = mHeightGap = -1;
}
@Override
protected boolean onSetAlpha(int alpha) {
return true;
mChildren = new PagedViewCellLayoutChildren(context);
mChildren.setCellDimensions(mCellWidth, mCellHeight);
mChildren.setGap(mWidthGap, mHeightGap);
addView(mChildren);
mHolographicChildren = new PagedViewCellLayoutChildren(context);
mHolographicChildren.setAlpha(0f);
mHolographicChildren.setCellDimensions(mCellWidth, mCellHeight);
mHolographicChildren.setGap(mWidthGap, mHeightGap);
addView(mHolographicChildren);
}
@Override
public void setAlpha(float alpha) {
mHolographicAlpha = 1.0f - alpha;
setChildrenAlpha(alpha);
super.setAlpha(alpha);
mChildren.setAlpha(alpha);
mHolographicChildren.setAlpha(1.0f - alpha);
}
@Override
@@ -103,28 +105,44 @@ public class PagedViewCellLayout extends ViewGroup {
if (lp.cellVSpan < 0) lp.cellVSpan = mCellCountY;
child.setId(childId);
mChildren.addView(child, index, lp);
// We might be in the middle or end of shrinking/fading to a dimmed view
// Make sure this view's alpha is set the same as all the rest of the views
child.setAlpha(1.0f - mHolographicAlpha);
addView(child, index, lp);
if (child instanceof PagedViewIcon) {
PagedViewIcon pagedViewIcon = (PagedViewIcon) child;
mHolographicChildren.addView(pagedViewIcon.getHolographicOutlineView(), index, lp);
}
return true;
}
return false;
}
@Override
public void requestChildFocus(View child, View focused) {
super.requestChildFocus(child, focused);
if (child != null) {
Rect r = new Rect();
child.getDrawingRect(r);
requestRectangleOnScreen(r);
}
public void removeAllViewsOnPage() {
mChildren.removeAllViews();
mHolographicChildren.removeAllViews();
}
@Override
public void removeViewOnPageAt(int index) {
mChildren.removeViewAt(index);
mHolographicChildren.removeViewAt(index);
}
@Override
public int getPageChildCount() {
return mChildren.getChildCount();
}
@Override
public View getChildOnPageAt(int i) {
return mChildren.getChildAt(i);
}
@Override
public int indexOfChildOnPage(View v) {
return mChildren.indexOfChild(v);
}
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
// TODO: currently ignoring padding
@@ -154,8 +172,6 @@ public class PagedViewCellLayout extends ViewGroup {
// center it around the min gaps
int minGap = Math.min(widthGap, heightGap);
int paddingLeft = mPaddingLeft;
int paddingTop = mPaddingTop;
/*
if (minGap < heightGap) {
// vertical space has shrunken, so change padding accordingly
@@ -180,16 +196,10 @@ public class PagedViewCellLayout extends ViewGroup {
final int count = getChildCount();
for (int i = 0; i < count; i++) {
View child = getChildAt(i);
PagedViewCellLayout.LayoutParams lp =
(PagedViewCellLayout.LayoutParams) child.getLayoutParams();
lp.setup(cellWidth, cellHeight, widthGap, heightGap,
paddingLeft, paddingTop);
int childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(lp.width,
MeasureSpec.EXACTLY);
int childheightMeasureSpec = MeasureSpec.makeMeasureSpec(lp.height,
MeasureSpec.EXACTLY);
int childWidthMeasureSpec =
MeasureSpec.makeMeasureSpec(newWidth, MeasureSpec.EXACTLY);
int childheightMeasureSpec =
MeasureSpec.makeMeasureSpec(newHeight, MeasureSpec.EXACTLY);
child.measure(childWidthMeasureSpec, childheightMeasureSpec);
}
@@ -199,32 +209,9 @@ public class PagedViewCellLayout extends ViewGroup {
@Override
protected void onLayout(boolean changed, int l, int t, int r, int b) {
int count = getChildCount();
int offsetX = 0;
if (mCenterContent) {
// determine the max width of all the rows and center accordingly
int maxRowWidth = 0;
for (int i = 0; i < count; i++) {
View child = getChildAt(i);
if (child.getVisibility() != GONE) {
PagedViewCellLayout.LayoutParams lp =
(PagedViewCellLayout.LayoutParams) child.getLayoutParams();
maxRowWidth = Math.max(maxRowWidth, lp.x + lp.width);
}
}
offsetX = (getMeasuredWidth() / 2) - (maxRowWidth / 2);
}
for (int i = 0; i < count; i++) {
View child = getChildAt(i);
if (child.getVisibility() != GONE) {
PagedViewCellLayout.LayoutParams lp =
(PagedViewCellLayout.LayoutParams) child.getLayoutParams();
int childLeft = offsetX + lp.x;
int childTop = lp.y;
child.layout(childLeft, childTop, childLeft + lp.width, childTop + lp.height);
}
child.layout(0, 0, r - l, b - t);
}
}
@@ -234,20 +221,14 @@ public class PagedViewCellLayout extends ViewGroup {
}
public void enableCenteredContent(boolean enabled) {
mCenterContent = enabled;
mChildren.enableCenteredContent(enabled);
mHolographicChildren.enableCenteredContent(enabled);
}
@Override
protected void setChildrenDrawingCacheEnabled(boolean enabled) {
final int count = getChildCount();
for (int i = 0; i < count; i++) {
final View view = getChildAt(i);
view.setDrawingCacheEnabled(enabled);
// Update the drawing caches
if (!view.isHardwareAccelerated()) {
view.buildDrawingCache(true);
}
}
mChildren.setChildrenDrawingCacheEnabled(enabled);
mHolographicChildren.setChildrenDrawingCacheEnabled(enabled);
}
public void setCellCount(int xCount, int yCount) {
@@ -259,25 +240,21 @@ public class PagedViewCellLayout extends ViewGroup {
public void setGap(int widthGap, int heightGap) {
mWidthGap = widthGap;
mHeightGap = heightGap;
mChildren.setGap(widthGap, heightGap);
mHolographicChildren.setGap(widthGap, heightGap);
}
public void setCellDimensions(int width, int height) {
mCellWidth = width;
mCellHeight = height;
requestLayout();
mChildren.setCellDimensions(width, height);
mHolographicChildren.setCellDimensions(width, height);
}
public int getDefaultCellDimensions() {
return sDefaultCellDimensions;
}
private void setChildrenAlpha(float alpha) {
final int childCount = getChildCount();
for (int i = 0; i < childCount; i++) {
getChildAt(i).setAlpha(alpha);
}
}
public int[] getCellCountForDimensions(int width, int height) {
// Always assume we're working with the smallest span to make sure we
// reserve enough space in both orientations
@@ -452,3 +429,11 @@ public class PagedViewCellLayout extends ViewGroup {
}
}
}
interface Page {
public int getPageChildCount();
public View getChildOnPageAt(int i);
public void removeAllViewsOnPage();
public void removeViewOnPageAt(int i);
public int indexOfChildOnPage(View v);
}