Created
August 30, 2016 18:36
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import android.content.Context; | |
import android.content.res.TypedArray; | |
import android.graphics.Canvas; | |
import android.graphics.drawable.Drawable; | |
import android.support.v4.content.ContextCompat; | |
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 mDivider; | |
/** | |
* Default divider will be used | |
*/ | |
public DividerItemDecoration(Context context) { | |
final TypedArray styledAttributes = context.obtainStyledAttributes(ATTRS); | |
mDivider = styledAttributes.getDrawable(0); | |
styledAttributes.recycle(); | |
} | |
/** | |
* Custom divider will be used | |
*/ | |
public DividerItemDecoration(Context context, int resId) { | |
mDivider = ContextCompat.getDrawable(context, resId); | |
} | |
@Override | |
public void onDraw(Canvas c, RecyclerView parent, RecyclerView.State state) { | |
int left = parent.getPaddingLeft(); | |
int right = parent.getWidth() - parent.getPaddingRight(); | |
int childCount = parent.getChildCount(); | |
for (int i = 0; i < childCount; i++) { | |
View child = parent.getChildAt(i); | |
RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child.getLayoutParams(); | |
int top = child.getBottom() + params.bottomMargin; | |
int bottom = top + mDivider.getIntrinsicHeight(); | |
mDivider.setBounds(left, top, right, bottom); | |
mDivider.draw(c); | |
} | |
} | |
} |
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