Fragment从Activity获取数据(Activity一次性获取数据，然后分别传给各个fragment)

在Activity里把所需要的数据拿到后，放进一个Bundle里，再传到每个Fragment里

//data是从服务器里获取的总数据数组
JSONArray data = object.optJSONArray("data");

for (int i = 0; i < data.length(); i++) {
JSONObject jo = data.optJSONObject(i);

FragmentManager manager = getFragmentManager();
FragmentTransaction transaction =  manager.beginTransaction();
Fragment fragment = fragmentsList.get(i);
Bundle bundle = new Bundle();
bundle.putString("data", jo.optJSONArray("child").toString());
fragment.setArguments(bundle);
transaction.commit();

}

//在每个Fragment里拿到数据，转化成之前的数组，再进行调用
JSONArray data;
Bundle bundle = getArguments();
try {
data = new JSONArray(bundle.getString("data"));
} catch (JSONException e) {
e.printStackTrace();
}