将图像URL从JSON获取到数组中 [英] Get Image URLs from JSON into an Array
本文介绍了将图像URL从JSON获取到数组中的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我是Android的新手，我想弄清楚如何将Instagram JSON中的缩略图和标准分辨率照片的图像URL放入数组中，以便随后我可以使用Picasso下载图像并将其放入网格视图.
I'm new to Android and I'm trying to figure out how to get the image urls for thumbnails and standard resolution photos from Instagram JSON into arrays so that I can then use Picasso to download the images and put them into a grid view.
这是JSON.
{
"pagination": {
"next_url": "https://api.instagram.com/v1/users/1373666362/media/recent?access_token=25320296.1fb234f.b797e861c2494059b6584ac9749208fe&count=2&max_id=791341826737262101_1373666362",
"next_max_id": "791341826737262101_1373666362"
},
"meta": {
"code": 200
},
"data": [
{
"attribution": null,
"tags": [
"kystatefair"
],
"type": "image",
"location": null,
"comments": {
"count": 0,
"data": []
},
"filter": "Amaro",
"created_time": "1408648864",
"link": "http://instagram.com/p/r-MuYWFU96/",
"likes": {
"count": 5,
"data": [
{
"username": "tayworthington_",
"profile_picture": "http://photos-g.ak.instagram.com/hphotos-ak-xaf1/10632550_835588266460870_765781001_a.jpg",
"id": "24471760",
"full_name": "τᎯϓιΘર"
},
{
"username": "renee_laurent",
"profile_picture": "http://images.ak.instagram.com/profiles/profile_407687505_75sq_1397913189.jpg",
"id": "407687505",
"full_name": "Renee Laurent"
},
{
"username": "kystatefair",
"profile_picture": "http://images.ak.instagram.com/profiles/profile_381460857_75sq_1396983015.jpg",
"id": "381460857",
"full_name": "kystatefair"
},
{
"username": "jennaharrod1",
"profile_picture": "http://photos-b.ak.instagram.com/hphotos-ak-xfa1/10665605_1495839117327497_809128971_a.jpg",
"id": "18591399",
"full_name": "Jenna Harrod"
}
]
},
"images": {
"low_resolution": {
"url": "http://scontent-a.cdninstagram.com/hphotos-xaf1/t51.2885-15/10598650_352432021574566_306460147_a.jpg",
"width": 306,
"height": 306
},
"thumbnail": {
"url": "http://scontent-a.cdninstagram.com/hphotos-xaf1/t51.2885-15/10598650_352432021574566_306460147_s.jpg",
"width": 150,
"height": 150
},
"standard_resolution": {
"url": "http://scontent-a.cdninstagram.com/hphotos-xaf1/t51.2885-15/10598650_352432021574566_306460147_n.jpg",
"width": 640,
"height": 640
}
},
"users_in_photo": [],
"caption": {
"created_time": "1408648864",
"text": "Congratulations to The Lindsey Family for winning the Gospel Quartet competition! #kystatefair",
"from": {
"username": "kyfarmbureau",
"profile_picture": "http://photos-b.ak.instagram.com/hphotos-ak-xpf1/10349740_650479825030913_1755233568_a.jpg",
"id": "1373666362",
"full_name": "Kentucky Farm Bureau"
},
"id": "792126548887293629"
},
"user_has_liked": false,
"id": "792126548258148218_1373666362",
"user": {
"username": "kyfarmbureau",
"website": "",
"profile_picture": "http://photos-b.ak.instagram.com/hphotos-ak-xpf1/10349740_650479825030913_1755233568_a.jpg",
"full_name": "Kentucky Farm Bureau",
"bio": "",
"id": "1373666362"
}
},
{
"attribution": null,
"tags": [
"kfbmtc"
],
"type": "image",
"location": null,
"comments": {
"count": 0,
"data": []
},
"filter": "Normal",
"created_time": "1408555318",
"link": "http://instagram.com/p/r7aTLelU4V/",
"likes": {
"count": 4,
"data": [
{
"username": "corkey_cole",
"profile_picture": "http://photos-e.ak.instagram.com/hphotos-ak-xaf1/10598220_490230854445140_2139881142_a.jpg",
"id": "324166968",
"full_name": "corkey_cole"
},
{
"username": "renee_laurent",
"profile_picture": "http://images.ak.instagram.com/profiles/profile_407687505_75sq_1397913189.jpg",
"id": "407687505",
"full_name": "Renee Laurent"
},
{
"username": "silveradomafia04",
"profile_picture": "http://photos-e.ak.instagram.com/hphotos-ak-xfa1/914483_1500860143488988_1771984176_a.jpg",
"id": "1006562558",
"full_name": "Gideon Bailey"
},
{
"username": "sharelouisville",
"profile_picture": "http://images.ak.instagram.com/profiles/profile_1302605134_75sq_1399019203.jpg",
"id": "1302605134",
"full_name": "Share Louisville"
}
]
},
"images": {
"low_resolution": {
"url": "http://scontent-a.cdninstagram.com/hphotos-xaf1/t51.2885-15/10598436_1456586981280578_133918080_a.jpg",
"width": 306,
"height": 306
},
"thumbnail": {
"url": "http://scontent-a.cdninstagram.com/hphotos-xaf1/t51.2885-15/10598436_1456586981280578_133918080_s.jpg",
"width": 150,
"height": 150
},
"standard_resolution": {
"url": "http://scontent-a.cdninstagram.com/hphotos-xaf1/t51.2885-15/10598436_1456586981280578_133918080_n.jpg",
"width": 640,
"height": 640
}
},
"users_in_photo": [],
"caption": {
"created_time": "1408555318",
"text": "Media is starting to crowd around for #kfbmtc",
"from": {
"username": "kyfarmbureau",
"profile_picture": "http://photos-b.ak.instagram.com/hphotos-ak-xpf1/10349740_650479825030913_1755233568_a.jpg",
"id": "1373666362",
"full_name": "Kentucky Farm Bureau"
},
"id": "791341827391573199"
},
"user_has_liked": false,
"id": "791341826737262101_1373666362",
"user": {
"username": "kyfarmbureau",
"website": "",
"profile_picture": "http://photos-b.ak.instagram.com/hphotos-ak-xpf1/10349740_650479825030913_1755233568_a.jpg",
"full_name": "Kentucky Farm Bureau",
"bio": "",
"id": "1373666362"
}
}
]
}
推荐答案
您必须首先处理JSON.例如:
You have to process the JSON first. For example:
// follow your JSON heirarchy!
JSONObject jsonObj = new JSONObject(jsonStr);
JSONObject data = jsonObj.getJSONObject("data");
JSONObject images = jsonObj.getJSONObject("images");
JSONObject lowRes = jsonObj.getJSONObject("low_resolution");
String url = lowRes.getString("url");
现在您有了网址，然后调用Picasso ....
Now you have the url, then invoke Picasso ....
Picasso.with(context).load(url).into(imageView);
这篇关于将图像URL从JSON获取到数组中的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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