TTMusic/entry/src/main/ets/pages/index.ets

/*
 * Copyright (C) 2024 Huawei Device Co., Ltd.
 * 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.
 */

import router from '@ohos.router'
import ConfigurationConstant from '@ohos.app.ability.ConfigurationConstant';
import dataStorage from '@ohos.data.storage';
import common from '@ohos.app.ability.common';

@Entry
@Component
struct indexPage {
  @State currentMode: number = ConfigurationConstant.ColorMode.COLOR_MODE_LIGHT;
  private storage: dataStorage.Storage | undefined = undefined;

  async aboutToAppear() {
    try {
      const context = getContext(this) as common.UIAbilityContext;
      this.storage = await dataStorage.getStorage(context.cacheDir);
      if (this.storage) {
        const colorMode = await this.storage.get('currentColorMode', this.currentMode);
        this.currentMode = colorMode as number;
        this.updateUI();
      }
    } catch (err) {
      console.error('Failed to get color mode:', err);
    }
  }

  updateUI() {
    if (this.currentMode == ConfigurationConstant.ColorMode.COLOR_MODE_LIGHT) {
      console.info('当前为浅色模式');
    } else {
      console.info('当前为深色模式');
    }
  }

  build() {
    Column() {
      Button($r('app.string.video_demo'))
        .margin({ bottom: 20 })
        .width(200)
        .onClick(() => {
          router.pushUrl({ url: 'pages/SampleVideoListPage' })
        })
      Button($r('app.string.audio_demo'))
        .width(200)
        .onClick(() => {
          router.pushUrl({ url: 'pages/SampleAudioListPage' })
        })
    }
    .width('100%')
    .height('100%')
    .backgroundColor(this.currentMode === ConfigurationConstant.ColorMode.COLOR_MODE_LIGHT ? Color.Gray : '#121212')
    .justifyContent(FlexAlign.Center)
  }
}