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      1 /*
      2  * Copyright (C) 2015 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 package com.android.settings.applications;
     17 
     18 import android.content.Context;
     19 import android.content.res.TypedArray;
     20 import android.support.v4.content.res.TypedArrayUtils;
     21 import android.support.v7.preference.Preference;
     22 import android.support.v7.preference.PreferenceViewHolder;
     23 import android.util.AttributeSet;
     24 import android.view.ViewGroup.LayoutParams;
     25 import com.android.settings.R;
     26 
     27 /**
     28  * A blank preference that has a specified height by android:layout_height.  It can be used
     29  * to fine tune screens that combine custom layouts and standard preferences.
     30  */
     31 public class SpacePreference extends Preference {
     32 
     33     private int mHeight;
     34 
     35     public SpacePreference(Context context, AttributeSet attrs) {
     36         this(context, attrs, TypedArrayUtils.getAttr(context,
     37                 android.support.v7.preference.R.attr.preferenceStyle,
     38                 android.R.attr.preferenceStyle));
     39     }
     40 
     41     public SpacePreference(Context context, AttributeSet attrs, int defStyleAttr) {
     42         this(context, attrs, defStyleAttr, 0);
     43     }
     44 
     45     public SpacePreference(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
     46         super(context, attrs, defStyleAttr, defStyleRes);
     47         setLayoutResource(R.layout.space_preference);
     48 
     49         final TypedArray a = context.obtainStyledAttributes(attrs,
     50                 new int[] { com.android.internal.R.attr.layout_height }, defStyleAttr, defStyleRes);
     51         mHeight = a.getDimensionPixelSize(0, 0);
     52         a.recycle();
     53     }
     54 
     55     public void setHeight(int height) {
     56         mHeight = height;
     57     }
     58 
     59     @Override
     60     public void onBindViewHolder(PreferenceViewHolder view) {
     61         super.onBindViewHolder(view);
     62 
     63         LayoutParams params = new LayoutParams(LayoutParams.MATCH_PARENT, mHeight);
     64         view.itemView.setLayoutParams(params);
     65     }
     66 
     67 }
     68