JSON Parsing - Developing Android AppsYouTube↗  IA↗(long shot)
Education  8.6K views 5 likes 0 dislikes   23 Feb 2015
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JSONデータの解析方法を学ぶと 他のフィールドの解析も容易になります
Once you've learned how to parse JSON data, it's pretty straightforward to be able to parse the rest of the fields that we need.
今はJavaやJSONの講義ではないので 下のGistに解析コードを載せておきます
Since this isn't a course on Java or JSON, we're going to provide you with the parsing code in the gist below.
これがGistで3つのヘルパーメソッドがあります
And this is what the gist looks like. There are three helper methods.
1つ目はデータのフォーマット用で
The first is for formatting dates.
2つ目は気温の四捨五入用
The second is for rounding temperatures.
3つ目は予報の配列に 予報のJSON文字列を返すためのものです
The third is returning a forecast JSON string into an array of forecasts.
このメソッドは予報の入力データの 関連づけも行います
This method also handles associating a date with each forecast entry.
最新の日付を使って それぞれの日にインクリメントしていきます
We start with a current date, and we increment one for each successive day.
カレンダーはユリウス皇帝の時代から使っている ユリウス暦を使っています
Notice that we also use Julian dates, which is the number of days that have passed since the beginning of the Julian period.
詳細は下の講師メモをご覧ください 私たちのアプリでの扱い方が載っています
More information is in the instructor notes below, but it's how we'll consistently deal with dates in our app.
日付を比較する際はタイムゾーンや サマータイムを考慮する必要はありません
That way, when comparing dates, we don't have to worry about taking into account time zones or daylight savings time.
helper関数を使うために FetchWeatherTaskをアップデートし
Update the fetch weather tasks to use these helper functions and
doInBackgroundメソッドが 予報の文字列を返すようにします
the doInBackground method should return a string array of forecasts.
出力内容をログに登録し 配列をチェックできます
You can log the output to check that the array is correct.
これが 予報フォーマットの見本です
The format of one day's forecast should look like this.
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