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      1 /*
      2  * Copyright (C) 2016 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
      5  * except in compliance with the License. You may obtain a copy of the License at
      6  *
      7  *      http://www.apache.org/licenses/LICENSE-2.0
      8  *
      9  * Unless required by applicable law or agreed to in writing, software distributed under the
     10  * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
     11  * KIND, either express or implied. See the License for the specific language governing
     12  * permissions and limitations under the License.
     13  */
     14 
     15 package com.android.settings;
     16 
     17 import android.content.Context;
     18 import android.support.v7.preference.Preference;
     19 import android.support.v7.preference.PreferenceViewHolder;
     20 import android.text.TextUtils;
     21 import android.util.AttributeSet;
     22 import android.view.View;
     23 import android.widget.TextView;
     24 import com.android.settings.applications.LinearColorBar;
     25 
     26 /**
     27  * Provides a summary of a setting page in a preference.  Such as memory or data usage.
     28  */
     29 public class SummaryPreference extends Preference {
     30 
     31     private static final String TAG = "SummaryPreference";
     32     private String mAmount;
     33     private String mUnits;
     34 
     35     private int mLeft, mMiddle, mRight;
     36     private float mLeftRatio, mMiddleRatio, mRightRatio;
     37     private String mStartLabel;
     38     private String mEndLabel;
     39 
     40     public SummaryPreference(Context context, AttributeSet attrs) {
     41         super(context, attrs);
     42         setLayoutResource(R.layout.settings_summary_preference);
     43         mLeft = context.getColor(R.color.summary_default_start);
     44         mRight = context.getColor(R.color.summary_default_end);
     45     }
     46 
     47     public void setAmount(String amount) {
     48         mAmount = amount;
     49         if (mAmount != null && mUnits != null) {
     50             setTitle(TextUtils.expandTemplate(getContext().getText(R.string.storage_size_large),
     51                     mAmount, mUnits));
     52         }
     53     }
     54 
     55     public void setUnits(String units) {
     56         mUnits = units;
     57         if (mAmount != null && mUnits != null) {
     58             setTitle(TextUtils.expandTemplate(getContext().getText(R.string.storage_size_large),
     59                     mAmount, mUnits));
     60         }
     61     }
     62 
     63     public void setLabels(String start, String end) {
     64         mStartLabel = start;
     65         mEndLabel = end;
     66         notifyChanged();
     67     }
     68 
     69     public void setRatios(float left, float middle, float right) {
     70         mLeftRatio = left;
     71         mMiddleRatio = middle;
     72         mRightRatio = right;
     73         notifyChanged();
     74     }
     75 
     76     public void setColors(int left, int middle, int right) {
     77         mLeft = left;
     78         mMiddle = middle;
     79         mRight = right;
     80         notifyChanged();
     81     }
     82 
     83     @Override
     84     public void onBindViewHolder(PreferenceViewHolder holder) {
     85         super.onBindViewHolder(holder);
     86 
     87         LinearColorBar colorBar = (LinearColorBar) holder.itemView.findViewById(R.id.color_bar);
     88         colorBar.setRatios(mLeftRatio, mMiddleRatio, mRightRatio);
     89         colorBar.setColors(mLeft, mMiddle, mRight);
     90 
     91         if (!TextUtils.isEmpty(mStartLabel) || !TextUtils.isEmpty(mEndLabel)) {
     92             holder.findViewById(R.id.label_bar).setVisibility(View.VISIBLE);
     93             ((TextView) holder.findViewById(android.R.id.text1)).setText(mStartLabel);
     94             ((TextView) holder.findViewById(android.R.id.text2)).setText(mEndLabel);
     95         } else {
     96             holder.findViewById(R.id.label_bar).setVisibility(View.GONE);
     97         }
     98     }
     99 }
    100