/*
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* Copyright (C) 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package android.sample;
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import android.app.Activity;
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import android.content.Context;
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import android.content.SharedPreferences;
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import android.content.SharedPreferences.Editor;
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import android.os.Bundle;
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import java.lang.Override;
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/**
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* A simple activity for using the SharedPreferences API.
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*/
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public class SampleDeviceActivity extends Activity {
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private SharedPreferences mPreferences;
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@Override
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public void onCreate(Bundle icicle) {
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super.onCreate(icicle);
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// Get a reference to this context's shared preference.
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mPreferences = getPreferences(Context.MODE_PRIVATE);
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}
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/**
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* Saves the given key value pair to the shared preferences.
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*
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* @param key
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* @param value
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*/
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public void savePreference(String key, String value) {
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// Get an editor to modify the preferences.
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Editor editor = mPreferences.edit();
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// Insert the key value pair.
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editor.putString(key, value);
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// Commit the changes - important.
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editor.commit();
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}
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/**
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* Looks up the given key in the shared preferences.
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*
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* @param key
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* @return
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*/
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public String getPreference(String key) {
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return mPreferences.getString(key, null);
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}
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/**
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* Deletes all entries in the shared preferences.
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*/
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public void clearPreferences() {
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// Get an editor to modify the preferences.
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Editor editor = mPreferences.edit();
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// Delete all entries.
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editor.clear();
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// Commit the changes - important.
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editor.commit();
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}
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}
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