Muc*_*low 5 android google-maps driving-directions google-maps-android-api-2
我正在从我的 Android 应用程序中的 Directions API 获取包括航路点在内的路线。它包含多个“腿”段,这些段有自己的距离和持续时间。有没有办法将所有距离和持续时间相加得到总值?
示例:从 Direction API 中剥离 json 段
legs": [
{
"distance": {
"text": "389 km",
"value": 389438
},
"duration": {
"text": "6 hours 31 mins",
"value": 23452
}
},
{
"distance": {
"text": "0.5 km",
"value": 487
},
"duration": {
"text": "2 mins",
"value": 102
}
}
]
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根据上面的响应,有没有一种方法可以计算并显示输出,如下所示:
总距离:389.5公里总时长:6小时33分钟
这增加了库沙尔回答的持续时间:
public void parseJson(String json) {
JSONObject jsonObj = new JSONObject(json);
JSONObject object = (JSONObject) new JSONTokener(json).nextValue();
JSONObject legsJson = object.getJSONObject("legs");
long totalDistance = 0;
int totalSeconds = 0;
for( int i = 0; i < legsJson.size(); i++ ) {
// distance in meter
totalDistance = totalDistance + Long.parseLong(jsonObj[i].getJSONArray("distance").getString("value"));
totalSeconds = totalSeconds + Integer.parseInt(jsonObj[i].getJSONArray("duration").getString("value"));
}
// convert to kilometer
double dist = dist / 1000.0 ;
Log.d("distance", "Calculated distance:" + dist);
int days = totalSeconds / 86400
int hours = (totalSeconds - days * 86400) / 3600;
int minutes = (totalSeconds - days * 86400 - hours * 3600) / 60;
int seconds = totalSeconds - days * 86400 - hours * 3600 - minutes * 60;
Log.d("duration", days + " days " + hours + " hours " + minutes + " mins" + seconds + " seconds");
}
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作为我对 @Kushal 的评论和回答的补充,这是一种计算总时间的方法。我跳过了 get 的方法,因为它已经描述了,并给出了一个在解析时得到的JSONObject
给定示例String[]
JSON
给定示例。在此示例中,我使用给定响应制作了所有可能的场景,因此您可以使用它而无需修改:
String[] timeItems = {"4 days 1 hour 12 mins", "5 hours 9 mins"}; // as example for visibility\n int[] total = {0, 0, 0}; // days, hours, minutes\n for(int i = 0; i < timeItems.length; i++){\n if(timeItems[i].contains("day ")){\n total[0]++;\n }else if(timeItems[i].contains("days")){\n total[0] += Integer.valueOf(timeItems[i].substring(0, timeItems[i].indexOf(" days")));\n }\n if(timeItems[i].contains("hour ")){\n total[1]++;\n }else if(timeItems[i].contains("hours")){\n if(timeItems[i].indexOf(" hours") <= 3){\n total[1] += Integer.valueOf(timeItems[i].substring(0, timeItems[i].indexOf(" hours")));\n }else{\n if(timeItems[i].contains("days")){\n total[1] += Integer.valueOf(timeItems[i].substring(timeItems[i].lastIndexOf("days ")) + 5, timeItems[i].indexOf(" hours"));\n }else{\n total[1] += Integer.valueOf(timeItems[i].substring(timeItems[i].lastIndexOf("day ")) + 4, timeItems[i].indexOf(" hours"));\n }\n }\n }\n if(timeItems[i].contains("min ")){\n total[2]++;\n }else if(timeItems[i].contains("mins")){\n if(timeItems[i].indexOf(" mins") <= 3){\n total[2] += Integer.valueOf(timeItems[i].substring(0, timeItems[i].indexOf(" mins")));\n }else{\n if(timeItems[i].contains("hours")){\n total[2] += Integer.valueOf(timeItems[i].substring(timeItems[i].indexOf("hours ") + 6, timeItems[i].indexOf(" mins")));\n }else{\n total[2] += Integer.valueOf(timeItems[i].substring(timeItems[i].indexOf("hour ") + 5, timeItems[i].indexOf(" mins")));\n }\n }\n }\n }\n Log.d("LOG", total[0] + " days " + total[1] + " hours " + total[2] + " mins.");\n
Run Code Online (Sandbox Code Playgroud)\n\n这比我想象的要复杂一点,也许可以以某种方式简化或使用类似的想法,但要点是向您展示工作示例。我调试了这段代码。它给出了正确的输出:
\n\n05-19 23:00:38.687 14251-14251/whatever.com.myapplication D/LOG\xef\xb9\x95 4 days 6 hours 21 mins.\n
Run Code Online (Sandbox Code Playgroud)\n\n我希望这对您有所帮助。\n请告诉我它是否适合您。
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