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ColorSelectionActivity.java
/* * Copyright (C) 2017 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.wearable.watchface.config; import android.app.Activity; import android.os.Bundle; import android.support.v7.widget.LinearLayoutManager; import android.support.wear.widget.WearableRecyclerView; import com.example.android.wearable.watchface.R; import com.example.android.wearable.watchface.model.AnalogComplicationConfigData; /** * Allows user to select color for something on the watch face (background, highlight,etc.) and * saves it to {@link android.content.SharedPreferences} in * {@link android.support.v7.widget.RecyclerView.Adapter}. */ public class ColorSelectionActivity extends Activity { private static final String TAG = ColorSelectionActivity.class.getSimpleName(); static final String EXTRA_SHARED_PREF = "com.example.android.wearable.watchface.config.extra.EXTRA_SHARED_PREF"; private WearableRecyclerView mConfigAppearanceWearableRecyclerView; private ColorSelectionRecyclerViewAdapter mColorSelectionRecyclerViewAdapter; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_color_selection_config); // Assigns SharedPreference String used to save color selected. String sharedPrefString = getIntent().getStringExtra(EXTRA_SHARED_PREF); mColorSelectionRecyclerViewAdapter = new ColorSelectionRecyclerViewAdapter( sharedPrefString, AnalogComplicationConfigData.getColorOptionsDataSet()); mConfigAppearanceWearableRecyclerView = (WearableRecyclerView) findViewById(R.id.wearable_recycler_view); // Aligns the first and last items on the list vertically centered on the screen. mConfigAppearanceWearableRecyclerView.setEdgeItemsCenteringEnabled(true); mConfigAppearanceWearableRecyclerView.setLayoutManager(new LinearLayoutManager(this)); // Improves performance because we know changes in content do not change the layout size of // the RecyclerView. mConfigAppearanceWearableRecyclerView.setHasFixedSize(true); mConfigAppearanceWearableRecyclerView.setAdapter(mColorSelectionRecyclerViewAdapter); } }