图像加载从 java 服务器到 android Listview

Question

我正在开发一个安卓应用程序。我需要将图像从 java 服务器加载到 Android Recyclerview 或 Listview。

我通过这个线程 http://www.androidhive.info/2014/06/android-facebook-like-custom-listview-feed-using-volley/ 了解了 android 方面的内容。

我需要 Java 服务器端的帮助。我需要通过 JSON 数组检索图像。像这样

 {
    "feed": [
    {
        "id": 1,
        "name": "National Geographic Channel",
        "image": "http://api.androidhive.info/feed/img/cosmos.jpg",
        "status": "\"Science is a beautiful and emotional human endeavor,\" says Brannon Braga, executive producer and director. \"And Cosmos is all about making science an experience.\"",
        "profilePic": "http://api.androidhive.info/feed/img/nat.jpg",
        "timeStamp": "1403375851930",
        "url": null
    },
    {
        "id": 2,
        "name": "TIME",
        "image": "http://api.androidhive.info/feed/img/time_best.jpg",
        "status": "30 years of Cirque du Soleil's best photos",
        "profilePic": "http://api.androidhive.info/feed/img/time.png",
        "timeStamp": "1403375851930",
        "url": "http://ti.me/1qW8MLB"
    },
    {
        "id": 5,
        "name": "Abraham Lincoln",
        "image": null,
        "status": "That some achieve great success, is proof to all that others can achieve it as well",
        "profilePic": "http://api.androidhive.info/feed/img/lincoln.jpg",
        "timeStamp": "1403375851930",
        "url": null
    },
    {
        "id": 3,
        "name": "Discovery",
        "image": "http://api.androidhive.info/feed/img/discovery_mos.jpg",
        "status": "A team of Austrian scientists has developed a laser system that causes fruit flies to dance.",
        "profilePic": "http://api.androidhive.info/feed/img/discovery.jpg",
        "timeStamp": "1403375851930",
        "url": "http://dsc.tv/xmMxD"
    },
    {
        "id": 4,
        "name": "Ravi Tamada",
        "image": "http://api.androidhive.info/feed/img/nav_drawer.jpg",
        "status": "Android Sliding Menu using Navigation Drawer",
        "profilePic": "http://api.androidhive.info/feed/img/ravi_tamada.jpg",
        "timeStamp": "1403375851930",
        "url": "http://www.androidhive.info/2013/11/android-sliding-menu-using-navigation-drawer/"
    },
    {
        "id": 6,
        "name": "KTM",
        "image": "http://api.androidhive.info/feed/img/ktm_1290.jpg",
        "status": "\"The Beast\" KTM 1290 Super Duke",
        "profilePic": "http://api.androidhive.info/feed/img/ktm.png",
        "timeStamp": "1403375851930",
        "url": ""
    },
    {
        "id": 7,
        "name": "Harley-Davidson",
        "image": "http://api.androidhive.info/feed/img/harley_bike.jpg",
        "status": "We’re assembling riders of every style, bike, and passion. If you ride with conviction, ride with us. You have 24 days to get ready for World Ride. Prepare by visiting:",
        "profilePic": "http://api.androidhive.info/feed/img/harley.jpg",
        "timeStamp": "1403375851930",
        "url": "http://bit.ly/1wmBWaN"
    },
    {
        "id": 8,
        "name": "Rock & Girl",
        "image": "http://api.androidhive.info/feed/img/rock.jpg",
        "status": "A long time back...",
        "profilePic": "http://api.androidhive.info/feed/img/rock_girl.jpg",
        "timeStamp": "1403375851930",
        "url": ""
    },
    {
        "id": 8,
        "name": "Gandhi",
        "image": null,
        "status": "An eye for an eye will make the whole world blind.",
        "profilePic": "http://api.androidhive.info/feed/img/gandhi.jpg",
        "timeStamp": "1403375851930",
        "url": ""
    },
    {
        "id": 9,
        "name": "LIFE",
        "image": "http://api.androidhive.info/feed/img/life_photo.jpg",
        "status": "In 1965, LIFE photographer Bill Ray spent weeks with the Hells Angels, but his amazing photos never ran in the magazine",
        "profilePic": "http://api.androidhive.info/feed/img/life.jpg",
        "timeStamp": "1403375851930",
        "url": "http://ti.me/1rfcQa4"
    },
    {
        "id": 10,
        "name": "Shakira",
        "image": "http://api.androidhive.info/feed/img/shakira_la_la.png",
        "status": "Download La La La (Brazil 2014) from iTunes:",
        "profilePic": "http://api.androidhive.info/feed/img/shakira.jpg",
        "timeStamp": "1403375851930",
        "url": "http://smarturl.it/FWCalbum?IQid=sh"
    },
    {
        "id": 11,
        "name": "A. R. rahman",
        "image": "http://api.androidhive.info/feed/img/ar_bw.jpg",
        "status": "",
        "profilePic": "http://api.androidhive.info/feed/img/ar.jpg",
        "timeStamp": "1403375851930",
        "url": ""
    }
]
}

以及如何像这样从服务器端获取图像 url

Answer 1

您可以使用毕加索图书馆。

Picasso.with(context).load("http://api.androidhive.info/feed/img/cosmos.jpg").placeholder(R.drawable.no_image).into(imageView);