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      1 /*
      2  * Copyright (C) 2010 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.android.contacts.common.list;
     18 
     19 import android.content.Context;
     20 import android.content.res.TypedArray;
     21 import android.graphics.Color;
     22 import android.text.TextUtils;
     23 import android.util.AttributeSet;
     24 import android.view.Gravity;
     25 import android.view.View;
     26 import android.view.ViewParent;
     27 import android.widget.LinearLayout.LayoutParams;
     28 import android.widget.TextView;
     29 
     30 import com.android.contacts.common.R;
     31 import com.android.contacts.common.util.ViewUtil;
     32 
     33 /**
     34  * A custom view for the pinned section header shown at the top of the contact list.
     35  */
     36 public class ContactListPinnedHeaderView extends TextView {
     37 
     38     public ContactListPinnedHeaderView(Context context, AttributeSet attrs, View parent) {
     39         super(context, attrs);
     40 
     41         if (R.styleable.ContactListItemView == null) {
     42             return;
     43         }
     44         TypedArray a = getContext().obtainStyledAttributes(attrs, R.styleable.ContactListItemView);
     45         int backgroundColor = a.getColor(
     46                 R.styleable.ContactListItemView_list_item_background_color, Color.WHITE);
     47         int textOffsetTop = a.getDimensionPixelSize(
     48                 R.styleable.ContactListItemView_list_item_text_offset_top, 0);
     49         int paddingStartOffset = a.getDimensionPixelSize(
     50                 R.styleable.ContactListItemView_list_item_padding_left, 0);
     51         int textWidth = getResources().getDimensionPixelSize(
     52                 R.dimen.contact_list_section_header_width);
     53         int widthIncludingPadding = paddingStartOffset + textWidth;
     54         a.recycle();
     55 
     56         setBackgroundColor(backgroundColor);
     57         setTextAppearance(getContext(), R.style.SectionHeaderStyle);
     58         setLayoutParams(new LayoutParams(widthIncludingPadding, LayoutParams.WRAP_CONTENT));
     59         setLayoutDirection(parent.getLayoutDirection());
     60         setGravity(Gravity.CENTER_VERTICAL |
     61                 (ViewUtil.isViewLayoutRtl(this) ? Gravity.RIGHT : Gravity.LEFT));
     62 
     63         // Apply text top offset. Multiply by two, because we are implementing this by padding for a
     64         // vertically centered view, rather than adjusting the position directly via a layout.
     65         setPaddingRelative(
     66                 getPaddingStart() + paddingStartOffset,
     67                 getPaddingTop() + (textOffsetTop * 2),
     68                 getPaddingEnd(),
     69                 getPaddingBottom());
     70     }
     71 
     72     /**
     73      * Sets section header or makes it invisible if the title is null.
     74      */
     75     public void setSectionHeaderTitle(String title) {
     76         if (!TextUtils.isEmpty(title)) {
     77             setText(title);
     78             setVisibility(View.VISIBLE);
     79         } else {
     80             setVisibility(View.GONE);
     81         }
     82     }
     83 }
     84