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author | Winson Chung <winsonc@google.com> | 2011-05-09 11:56:34 -0700 |
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committer | Winson Chung <winsonc@google.com> | 2011-05-09 16:03:19 -0700 |
commit | 4e6a976c2d85f7261ae4318a9ccffd2440f73124 (patch) | |
tree | fdb2e2b157974f2e5260cc02c56b80d7981ab4ca /src/com/android/launcher2/PagedViewGridLayout.java | |
parent | 63257c110a4ee54d5e8872c471cce254cf613c7a (diff) | |
download | android_packages_apps_Trebuchet-4e6a976c2d85f7261ae4318a9ccffd2440f73124.tar.gz android_packages_apps_Trebuchet-4e6a976c2d85f7261ae4318a9ccffd2440f73124.tar.bz2 android_packages_apps_Trebuchet-4e6a976c2d85f7261ae4318a9ccffd2440f73124.zip |
Adding keyboard focus support for phones.
Change-Id: I2daab961d0727bc5d892db6b50ad0f51fe23873c
Diffstat (limited to 'src/com/android/launcher2/PagedViewGridLayout.java')
-rw-r--r-- | src/com/android/launcher2/PagedViewGridLayout.java | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/src/com/android/launcher2/PagedViewGridLayout.java b/src/com/android/launcher2/PagedViewGridLayout.java new file mode 100644 index 000000000..cedf71c5b --- /dev/null +++ b/src/com/android/launcher2/PagedViewGridLayout.java @@ -0,0 +1,120 @@ +/* + * Copyright (C) 2011 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package com.android.launcher2; + +import android.content.Context; +import android.view.MotionEvent; +import android.view.View; +import android.view.View.MeasureSpec; +import android.widget.FrameLayout; +import android.widget.LinearLayout; + +/** + * The grid based layout used strictly for the widget/wallpaper tab of the AppsCustomize pane + */ +public class PagedViewGridLayout extends FrameLayout implements Page { + static final String TAG = "PagedViewGridLayout"; + + private int mCellCountX; + private int mCellCountY; + + public PagedViewGridLayout(Context context, int cellCountX, int cellCountY) { + super(context, null, 0); + mCellCountX = cellCountX; + mCellCountY = cellCountY; + } + + int getCellCountX() { + return mCellCountX; + } + int getCellCountY() { + return mCellCountY; + } + + protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { + // PagedView currently has issues with different-sized pages since it calculates the + // offset of each page to scroll to before it updates the actual size of each page + // (which can change depending on the content if the contents aren't a fixed size). + // We work around this by having a minimum size on each widget page). + int widthSpecSize = Math.max(getSuggestedMinimumWidth(), + MeasureSpec.getSize(widthMeasureSpec)); + int widthSpecMode = MeasureSpec.AT_MOST; + super.onMeasure(MeasureSpec.makeMeasureSpec(widthSpecSize, widthSpecMode), + heightMeasureSpec); + } + + @Override + public boolean onTouchEvent(MotionEvent event) { + // We eat up the touch events here, since the PagedView (which uses the same swiping + // touch code as Workspace previously) uses onInterceptTouchEvent() to determine when + // the user is scrolling between pages. This means that if the pages themselves don't + // handle touch events, it gets forwarded up to PagedView itself, and it's own + // onTouchEvent() handling will prevent further intercept touch events from being called + // (it's the same view in that case). This is not ideal, but to prevent more changes, + // we just always mark the touch event as handled. + return super.onTouchEvent(event) || true; + } + + @Override + protected boolean onSetAlpha(int alpha) { + return true; + } + + @Override + public void setAlpha(float alpha) { + setChildrenAlpha(alpha); + super.setAlpha(alpha); + } + + private void setChildrenAlpha(float alpha) { + final int childCount = getChildCount(); + for (int i = 0; i < childCount; i++) { + getChildAt(i).setAlpha(alpha); + } + } + + @Override + public void removeAllViewsOnPage() { + removeAllViews(); + } + + @Override + public void removeViewOnPageAt(int index) { + removeViewAt(index); + } + + @Override + public int getPageChildCount() { + return getChildCount(); + } + + @Override + public View getChildOnPageAt(int i) { + return getChildAt(i); + } + + @Override + public int indexOfChildOnPage(View v) { + return indexOfChild(v); + } + + public static class LayoutParams extends FrameLayout.LayoutParams { + public LayoutParams(int width, int height) { + super(width, height); + } + } +} |