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我是Android的初學者。
我要分析此JSON：如何使用Volley解析JSON結果？
{
"data": [
{
"type": "gif",
"id": "12HZukMBlutpoQ",
"slug": "funny-cat-12HZukMBlutpoQ",
"url": "http://giphy.com/gifs/funny-cat-12HZukMBlutpoQ",
"bitly_gif_url": "http://gph.is/2cxnEkM",
"bitly_url": "http://gph.is/2cxnEkM",
"embed_url": "http://giphy.com/embed/12HZukMBlutpoQ",
"username": "",
"source": "http://www.thehollywoodgossip.com/gallery/funny-cat-gif/",
"rating": "g",
"content_url": "",
"source_tld": "www.thehollywoodgossip.com",
"source_post_url": "http://www.thehollywoodgossip.com/gallery/funny-cat-gif/",
"is_indexable": 0,
"import_datetime": "2016-09-22 23:33:27",
"trending_datetime": "0000-00-00 00:00:00",
"images": {
"fixed_height": {
"url": "http://media2.giphy.com/media/12HZukMBlutpoQ/200.gif",
"width": "267",
"height": "200",
"size": "65195",
"mp4": "http://media2.giphy.com/media/12HZukMBlutpoQ/200.mp4",
"mp4_size": "11912",
"webp": "http://media2.giphy.com/media/12HZukMBlutpoQ/200.webp",
"webp_size": "13488"
},
"fixed_height_still": {
"url": "http://media2.giphy.com/media/12HZukMBlutpoQ/200_s.gif",
"width": "267",
"height": "200",
"size": "32907"
},
"fixed_height_downsampled": {
"url": "http://media2.giphy.com/media/12HZukMBlutpoQ/200_d.gif",
"width": "267",
"height": "200",
"size": "65195",
"webp": "http://media2.giphy.com/media/12HZukMBlutpoQ/200_d.webp",
"webp_size": "13488"
},
"fixed_width": {
"url": "http://media2.giphy.com/media/12HZukMBlutpoQ/200w.gif",
"width": "200",
"height": "150",
"size": "40178",
"mp4": "http://media2.giphy.com/media/12HZukMBlutpoQ/200w.mp4",
"mp4_size": "8388",
"webp": "http://media2.giphy.com/media/12HZukMBlutpoQ/200w.webp",
"webp_size": "9344"
},
"fixed_width_still": {
"url": "http://media2.giphy.com/media/12HZukMBlutpoQ/200w_s.gif",
"width": "200",
"height": "150",
"size": "20471"
},
"fixed_width_downsampled": {
"url": "http://media2.giphy.com/media/12HZukMBlutpoQ/200w_d.gif",
"width": "200",
"height": "150",
"size": "40178",
"webp": "http://media2.giphy.com/media/12HZukMBlutpoQ/200w_d.webp",
"webp_size": "9344"
},
"fixed_height_small": {
"url": "http://media2.giphy.com/media/12HZukMBlutpoQ/100.gif",
"width": "134",
"height": "100",
"size": "20730",
"mp4": "http://media2.giphy.com/media/12HZukMBlutpoQ/100.mp4",
"mp4_size": "5524",
"webp": "http://media2.giphy.com/media/12HZukMBlutpoQ/100.webp",
"webp_size": "5448"
},
"fixed_height_small_still": {
"url": "http://media2.giphy.com/media/12HZukMBlutpoQ/100_s.gif",
"width": "134",
"height": "100",
"size": "10727"
},
"fixed_width_small": {
"url": "http://media2.giphy.com/media/12HZukMBlutpoQ/100w.gif",
"width": "100",
"height": "75",
"size": "13041",
"mp4": "http://media2.giphy.com/media/12HZukMBlutpoQ/100w.mp4",
"mp4_size": "4006",
"webp": "http://media2.giphy.com/media/12HZukMBlutpoQ/100w.webp",
"webp_size": "3812"
},
"fixed_width_small_still": {
"url": "http://media2.giphy.com/media/12HZukMBlutpoQ/100w_s.gif",
"width": "100",
"height": "75",
"size": "6936"
},
"downsized": {
"url": "http://media2.giphy.com/media/12HZukMBlutpoQ/giphy-downsized.gif",
"width": "340",
"height": "255",
"size": "96830"
},
"downsized_still": {
"url": "http://media2.giphy.com/media/12HZukMBlutpoQ/giphy-downsized_s.gif",
"width": "340",
"height": "255",
"size": "48519"
},
"downsized_large": {
"url": "http://media2.giphy.com/media/12HZukMBlutpoQ/giphy.gif",
"width": "340",
"height": "255",
"size": "96830"
},
"downsized_medium": {
"url": "http://media2.giphy.com/media/12HZukMBlutpoQ/giphy.gif",
"width": "340",
"height": "255",
"size": "96830"
},
"original": {
"url": "http://media2.giphy.com/media/12HZukMBlutpoQ/giphy.gif",
"width": "340",
"height": "255",
"size": "96830",
"frames": "2",
"mp4": "http://media1.giphy.com/media/12HZukMBlutpoQ/giphy.mp4",
"mp4_size": "27204",
"webp": "http://media2.giphy.com/media/12HZukMBlutpoQ/giphy.webp",
"webp_size": "20654",
"hash": "046bc516e30618ec167ca9d717174341"
},
"original_still": {
"url": "http://media2.giphy.com/media/12HZukMBlutpoQ/giphy_s.gif",
"width": "340",
"height": "255",
"size": "48519"
},
"looping": {
"mp4": "http://media2.giphy.com/media/12HZukMBlutpoQ/giphy-loop.mp4",
"mp4_size": "692089"
},
"original_mp4": {
"mp4": "http://media2.giphy.com/media/12HZukMBlutpoQ/giphy.mp4",
"mp4_size": "27204",
"width": "480",
"height": "360"
},
"preview": {
"mp4": "http://media2.giphy.com/media/12HZukMBlutpoQ/giphy-preview.mp4",
"mp4_size": "17834",
"width": "340",
"height": "254"
},
"downsized_small": {
"mp4": "http://media2.giphy.com/media/12HZukMBlutpoQ/giphy-downsized-small.mp4",
"mp4_size": "17834"
},
"preview_gif": {
"url": "http://media2.giphy.com/media/12HZukMBlutpoQ/giphy-preview.gif",
"width": "267",
"height": "200",
"size": "49366"
}
}
}
],
"meta": {
"status": 200,
"msg": "OK",
"response_id": "58bd894bafa0a7041e457b68"
},
"pagination": {
"total_count": 6884,
"count": 25,
"offset": 0
}
}
我只想要rating，fixed_height，pagination對象。
我的代碼是：
JsonArrayRequest req = new JsonArrayRequest(endpoint,
new Response.Listener<JSONArray>() {
@Override
public void onResponse(JSONArray response) {
Log.d(TAG, response.toString());
pDialog.hide();
images.clear();
for (int i = 0; i < response.length(); i++) {
try {
JSONObject object = response.getJSONObject(i);
Image image = new Image();
image.setName(object.getString("name"));
JSONObject url = object.getJSONObject("url");
image.setSmall(url.getString("small"));
image.setMedium(url.getString("medium"));
image.setLarge(url.getString("large"));
image.setTimestamp(object.getString("timestamp"));
images.add(image);
} catch (JSONException e) {
Log.e(TAG, "Json parsing error: " + e.getMessage());
}
}
mAdapter.notifyDataSetChanged();
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Log.e(TAG, "Error: " + error.getMessage());
pDialog.hide();
}
});
// Adding request to request queue
AppController.getInstance().addToRequestQueue(req);
我不知道究竟是什麼使得只有兩個對象將通過（在此代碼的json是here
如果你想'parse' json檢查此鏈接https://futurestud.io/tutorials/gson-mapping-of - 陣列和對象列表 – user5599807
我試過了，但我不明白如何把它放在我的代碼..plz幫助我.. –
排氣不解析任何東西。你自己解析Volley給你的'JSONObject' –