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Created a custom preference with a custom attribute.

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This commit is contained in:
Dan Galpin
2015-05-24 15:09:21 -07:00
parent 8975813855
commit 9fb13bbc47
3 changed files with 67 additions and 3 deletions
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40
app/src/main/java/com/example/android/sunshine/app/LocationEditTextPreference.java Normal file
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@@ -0,0 +1,40 @@
/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.example.android.sunshine.app;
import android.content.Context;
import android.content.res.TypedArray;
import android.preference.EditTextPreference;
import android.util.AttributeSet;
public class LocationEditTextPreference extends EditTextPreference {
static final private int DEFAULT_MINIMUM_LOCATION_LENGTH = 2;
private int mMinLength;
public LocationEditTextPreference(Context context, AttributeSet attrs) {
super(context, attrs);
TypedArray a = context.getTheme().obtainStyledAttributes(
attrs,
R.styleable.LocationEditTextPreference,
0, 0);
try {
mMinLength = a.getInteger(R.styleable.LocationEditTextPreference_minLength, DEFAULT_MINIMUM_LOCATION_LENGTH);
} finally {
a.recycle();
}
}
}

21
app/src/main/res/values/attrs.xml Normal file
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@@ -0,0 +1,21 @@
<?xml version="1.0" encoding="utf-8"?>
<!--
Copyright (C) 2015 The Android Open Source Project
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<resources>
<declare-styleable name="LocationEditTextPreference">
<attr name="minLength" format="integer" />
</declare-styleable>
</resources>

9
app/src/main/res/xml/pref_general.xml
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@@ -14,16 +14,19 @@
See the License for the specific language governing permissions and
limitations under the License.
-->
<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
<PreferenceScreen
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:custom="http://schemas.android.com/apk/res/com.example.android.sunshine.app"
android:layout_width="match_parent"
android:layout_height="match_parent">
<EditTextPreference
<com.example.android.sunshine.app.LocationEditTextPreference
android:title="@string/pref_location_label"
android:key="@string/pref_location_key"
android:defaultValue="@string/pref_location_default"
android:inputType="text"
android:singleLine="true" />
android:singleLine="true"
custom:minLength="3"/>
<ListPreference
android:title="@string/pref_units_label"