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Add DividerItemDecoration
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Kentaro Takiguchi committed May 29, 2015
1 parent 0c8aae0 commit 6cb85ef
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package rejasupotaro.mds.view.components;

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.RecyclerView;
import android.view.View;

public class DividerItemDecoration extends RecyclerView.ItemDecoration {

private static final int[] ATTRS = new int[]{
android.R.attr.listDivider
};

private Drawable divider;

public DividerItemDecoration(Context context) {
final TypedArray a = context.obtainStyledAttributes(ATTRS);
divider = a.getDrawable(0);
a.recycle();
}

@Override
public void onDraw(Canvas c, RecyclerView parent) {
drawVertical(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 + divider.getIntrinsicHeight();
divider.setBounds(left, top, right, bottom);
divider.draw(c);
}
}

@Override
public void getItemOffsets(Rect outRect, View view, RecyclerView parent, RecyclerView.State state) {
outRect.set(0, 0, 0, divider.getIntrinsicHeight());
}
}
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import rejasupotaro.mds.R;
import rejasupotaro.mds.data.models.Recipe;
import rejasupotaro.mds.view.adapters.UserRecipeListAdapter;
import rejasupotaro.mds.view.components.DividerItemDecoration;

public class UserRecipeListFragment extends Fragment {

Expand Down Expand Up @@ -50,6 +51,7 @@ private void setupViews() {
if (getActivity() instanceof ObservableScrollViewCallbacks) {
userRecipeListView.setScrollViewCallbacks((ObservableScrollViewCallbacks) getActivity());
}
userRecipeListView.addItemDecoration(new DividerItemDecoration(getActivity()));
userRecipeListView.setAdapter(userRecipeListAdapter);
}
}

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