diff options
Diffstat (limited to 'WordPress/src/main/java/org/wordpress/android/widgets/DividerItemDecoration.java')
| -rw-r--r-- | WordPress/src/main/java/org/wordpress/android/widgets/DividerItemDecoration.java | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/WordPress/src/main/java/org/wordpress/android/widgets/DividerItemDecoration.java b/WordPress/src/main/java/org/wordpress/android/widgets/DividerItemDecoration.java new file mode 100644 index 000000000..c61f9e17e --- /dev/null +++ b/WordPress/src/main/java/org/wordpress/android/widgets/DividerItemDecoration.java @@ -0,0 +1,104 @@ +package org.wordpress.android.widgets; + +import android.content.Context; +import android.content.res.TypedArray; +import android.graphics.Canvas; +import android.graphics.Rect; +import android.graphics.drawable.Drawable; +import android.support.v7.widget.LinearLayoutManager; +import android.support.v7.widget.RecyclerView; +import android.view.View; + +/* + * Copyright (C) 2014 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. + */ +public class DividerItemDecoration extends RecyclerView.ItemDecoration { + + private static final int[] ATTRS = new int[]{ + android.R.attr.listDivider + }; + + public static final int HORIZONTAL_LIST = LinearLayoutManager.HORIZONTAL; + + public static final int VERTICAL_LIST = LinearLayoutManager.VERTICAL; + + private Drawable mDivider; + + private int mOrientation; + + public DividerItemDecoration(Context context, int orientation) { + final TypedArray a = context.obtainStyledAttributes(ATTRS); + mDivider = a.getDrawable(0); + a.recycle(); + setOrientation(orientation); + } + + public void setOrientation(int orientation) { + if (orientation != HORIZONTAL_LIST && orientation != VERTICAL_LIST) { + throw new IllegalArgumentException("invalid orientation"); + } + mOrientation = orientation; + } + + @Override + public void onDraw(Canvas c, RecyclerView parent) { + if (mOrientation == VERTICAL_LIST) { + drawVertical(c, parent); + } else { + drawHorizontal(c, parent); + } + } + + public void drawVertical(Canvas c, RecyclerView parent) { + final int left = parent.getPaddingLeft(); + final int right = parent.getWidth() - parent.getPaddingRight(); + + final int childCount = parent.getChildCount(); + for (int i = 0; i < childCount; i++) { + final View child = parent.getChildAt(i); + final RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child + .getLayoutParams(); + final int top = child.getBottom() + params.bottomMargin; + final int bottom = top + mDivider.getIntrinsicHeight(); + mDivider.setBounds(left, top, right, bottom); + mDivider.draw(c); + } + } + + public void drawHorizontal(Canvas c, RecyclerView parent) { + final int top = parent.getPaddingTop(); + final int bottom = parent.getHeight() - parent.getPaddingBottom(); + + final int childCount = parent.getChildCount(); + for (int i = 0; i < childCount; i++) { + final View child = parent.getChildAt(i); + final RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child + .getLayoutParams(); + final int left = child.getRight() + params.rightMargin; + final int right = left + mDivider.getIntrinsicHeight(); + mDivider.setBounds(left, top, right, bottom); + mDivider.draw(c); + } + } + + @Override + public void getItemOffsets(Rect outRect, int itemPosition, RecyclerView parent) { + if (mOrientation == VERTICAL_LIST) { + outRect.set(0, 0, 0, mDivider.getIntrinsicHeight()); + } else { + outRect.set(0, 0, mDivider.getIntrinsicWidth(), 0); + } + } +}
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