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      1 /*
      2  * Copyright (C) 2011 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.phone;
     18 
     19 import android.content.Context;
     20 import android.preference.EditTextPreference;
     21 import android.util.AttributeSet;
     22 import android.view.View;
     23 import android.widget.TextView;
     24 
     25 /**
     26  * Ultra-simple subclass of EditTextPreference that allows the "title" to wrap
     27  * onto multiple lines.
     28  *
     29  * (By default, the title of an EditTextPreference is singleLine="true"; see
     30  * preference_holo.xml under frameworks/base.  But in the "Respond via SMS"
     31  * settings UI we want titles to be multi-line, since the customized messages
     32  * might be fairly long, and should be able to wrap.)
     33  *
     34  * TODO: This is pretty cumbersome; it would be nicer for the framework to
     35  * either allow modifying the title's attributes in XML, or at least provide
     36  * some way from Java (given an EditTextPreference) to reach inside and get a
     37  * handle to the "title" TextView.
     38  *
     39  * TODO: Also, it would reduce clutter if this could be an inner class in
     40  * RespondViaSmsManager.java, but then there would be no way to reference the
     41  * class from XML.  That's because
     42  *    <com.android.phone.RespondViaSmsManager$MultiLineTitleEditTextPreference ... />
     43  * isn't valid XML syntax due to the "$" character.  And Preference
     44  * elements don't have a "class" attribute, so you can't do something like
     45  * <view class="com.android.phone.Foo$Bar"> as you can with regular views.
     46  */
     47 public class MultiLineTitleEditTextPreference extends EditTextPreference {
     48     public MultiLineTitleEditTextPreference(Context context, AttributeSet attrs, int defStyle) {
     49         super(context, attrs, defStyle);
     50     }
     51 
     52     public MultiLineTitleEditTextPreference(Context context, AttributeSet attrs) {
     53         super(context, attrs);
     54     }
     55 
     56     public MultiLineTitleEditTextPreference(Context context) {
     57         super(context);
     58     }
     59 
     60     // The "title" TextView inside an EditTextPreference defaults to
     61     // singleLine="true" (see preference_holo.xml under frameworks/base.)
     62     // We override onBindView() purely to look up that TextView and call
     63     // setSingleLine(false) on it.
     64     @Override
     65     protected void onBindView(View view) {
     66         super.onBindView(view);
     67 
     68         TextView textView = (TextView) view.findViewById(com.android.internal.R.id.title);
     69         if (textView != null) {
     70             textView.setSingleLine(false);
     71         }
     72     }
     73 }
     74