这是我的json回复，
com.android.internal.policy.PhoneWindow$DecorView{a4dd2b7 V.E..... ... 0,0-1080,1920}
android.widget.LinearLayout{9e0aa24 V.E..... ... 0,0-1080,1920}
android.view.ViewStub{457998d G.E..... ... 0,0-0,0 #10203be android:id/action_mode_bar_stub}
android.widget.FrameLayout{a238742 V.E..... ... 0,0-1080,1920}
android.support.v7.widget.FitWindowsLinearLayout{362e353 V.E..... ... 0,0-1080,1920 #7f0f007b app:id/action_bar_root}
android.support.v7.widget.ViewStubCompat{7904490 G.E..... ... 0,0-0,0 #7f0f007c app:id/action_mode_bar_stub}
android.support.v7.widget.ContentFrameLayout{4b14189 V.E..... ... 0,0-1080,1920 #1020002 android:id/content}
android.support.v4.widget.DrawerLayout{a66d58e VFED.... ... 0,0-1080,1920 #7f0f00b2 app:id/material_drawer_layout}
android.support.v4.widget.DrawerLayout{cae61af VFED.... ... 0,0-1080,1920 #7f0f00b2 app:id/material_drawer_layout}
android.support.design.widget.CoordinatorLayout{45d19bc V.ED.... ... 0,0-1080,1920}
android.support.design.widget.AppBarLayout{55ce6b8 V.E..... ... 0,72-1080,240}
android.support.v7.widget.Toolbar{ce36d45 V.E..... ... 0,0-1080,168 #7f0f0094 app:id/toolbar}
android.support.v7.widget.AppCompatTextView{7ebc9a V.ED.... ... 48,43-383,124}
android.support.v7.widget.ActionMenuView{c8969cb V.E..... ... 960,0-1080,168}
android.support.v7.widget.ActionMenuPresenter$OverflowMenuButton{2c015a8 VFED..C. ... 0,12-120,156}
android.widget.RelativeLayout{12a7c91 V.E..... ... 0,240-1080,1920}
android.widget.FrameLayout{a5298c1 V.E..... ... 30,0-1050,1680 #7f0f0099 app:id/main_container_1}
android.widget.FrameLayout{5fc0866 V.E..... ... 0,0-1020,1680}
com.dnddev.sos.MyRecyclerView{bc2d7a7 VFED.... F.. 0,0-1020,1680 #7f0f00aa app:id/rv_lessons}
android.widget.LinearLayout{1d4e454 V.E..... ... 0,0-1020,491}
android.support.v7.widget.CardView{22efffd V.E..... ... 15,15-1005,476 #7f0f0095 app:id/lessonscard}
android.widget.RelativeLayout{ab044f2 V.E..... ... 0,0-990,461}
android.view.View{73b4743 V.ED.... ... 0,461-45,461 #7f0f00ad app:id/myrectangle}
android.support.v7.widget.AppCompatTextView{4c5f1c0 V.ED.... ... 45,54-615,310 #7f0f00af app:id/headline}
android.support.v7.widget.AppCompatTextView{2709ef9 V.ED.... ... 45,310-251,461 #7f0f00ae app:id/desc}
android.support.v7.widget.AppCompatTextView{7f9be3e V.ED.... ... 45,54-212,127 #7f0f00b0 app:id/initials}
android.support.v7.widget.AppCompatTextView{f41149f V.ED.... ... 737,54-990,127 #7f0f00b1 app:id/time}
android.widget.LinearLayout{4f869ec V.E..... ... 0,491-1020,982}
android.support.v7.widget.CardView{69331b5 V.E..... ... 15,15-1005,476 #7f0f0095 app:id/lessonscard}
android.widget.RelativeLayout{ccf804a V.E..... ... 0,0-990,461}
android.view.View{ac5bbb V.ED.... ... 0,461-45,461 #7f0f00ad app:id/myrectangle}
android.support.v7.widget.AppCompatTextView{af838d8 V.ED.... ... 45,54-484,310 #7f0f00af app:id/headline}
android.support.v7.widget.AppCompatTextView{c123431 V.ED.... ... 45,310-251,461 #7f0f00ae app:id/desc}
android.support.v7.widget.AppCompatTextView{e8d5716 V.ED.... ... 45,54-206,127 #7f0f00b0 app:id/initials}
android.support.v7.widget.AppCompatTextView{3baf897 V.ED.... ... 737,54-990,127 #7f0f00b1 app:id/time}
android.widget.LinearLayout{a240a84 V.E..... ... 0,982-1020,1473}
android.support.v7.widget.CardView{2a4e26d V.E..... ... 15,15-1005,476 #7f0f0095 app:id/lessonscard}
android.widget.RelativeLayout{a7fcea2 V.E..... ... 0,0-990,461}
android.view.View{cac8733 V.ED.... ... 0,461-45,461 #7f0f00ad app:id/myrectangle}
android.support.v7.widget.AppCompatTextView{b194af0 V.ED.... ... 45,54-517,310 #7f0f00af app:id/headline}
android.support.v7.widget.AppCompatTextView{43a3869 V.ED.... ... 45,310-251,461 #7f0f00ae app:id/desc}
android.support.v7.widget.AppCompatTextView{43032ee V.ED.... ... 45,54-212,127 #7f0f00b0 app:id/initials}
android.support.v7.widget.AppCompatTextView{a1e638f V.ED.... ... 737,54-990,127 #7f0f00b1 app:id/time}
com.melnykov.fab.FloatingActionButton{e0261c VFED..C. ... 804,1464-972,1632 #7f0f00ab app:id/lessons_fab}
com.mikepenz.materialize.view.ScrimInsetsRelativeLayout{b4f225 I.ED.... ... -912,0-0,1920 #7f0f0018 app:id/material_drawer_slider_layout}
android.view.View{c708ffa G.ED.... ... 0,0-0,0 #7f0f00ca app:id/material_drawer_inner_shadow}
android.support.v7.widget.RecyclerView{d27a9ab VFED.V.. ... 0,0-912,1920 #7f0f00c9 app:id/material_drawer_recycler_view}
com.mikepenz.materialize.view.ScrimInsetsRelativeLayout{4d78808 I.ED.... ... -912,0-0,1920 #7f0f0018 app:id/material_drawer_slider_layout}
android.view.View{9678ba1 G.ED.... ... 0,0-0,0 #7f0f00ca app:id/material_drawer_inner_shadow}
android.support.v7.widget.RecyclerView{d27b1c6 VFED.V.. ... 0,0-912,1920 #7f0f00c9 app:id/material_drawer_recycler_view}
android.widget.LinearLayout{7353587 V.....CL ... 0,0-912,543 #9e626c54}
android.widget.FrameLayout{5611cb4 V.E...C. ... 0,0-912,516}
android.support.v7.widget.AppCompatImageView{85040dd V.ED.... ... 0,0-912,516 #7f0f00b3 app:id/material_drawer_account_header_background}
android.widget.RelativeLayout{5dd2452 V.E..... ... 0,0-912,516 #7f0f00b4 app:id/material_drawer_account_header}
com.mikepenz.materialdrawer.view.BezelImageView{9a5a323 V.ED..CL ... 48,120-240,312 #7f0f00b8 app:id/material_drawer_account_header_current}
android.widget.LinearLayout{34d5020 V.E..... ... 912,120-912,120}
com.mikepenz.materialdrawer.view.BezelImageView{f150dd9 G.ED..C. ... 0,0-0,0 #7f0f00b5 app:id/material_drawer_account_header_small_first}
com.mikepenz.materialdrawer.view.BezelImageView{505339e G.ED..C. ... 0,0-0,0 #7f0f00b6 app:id/material_drawer_account_header_small_second}
com.mikepenz.materialdrawer.view.BezelImageView{3254e7f G.ED..C. ... 0,0-0,0 #7f0f00b7 app:id/material_drawer_account_header_small_third}
android.widget.LinearLayout{a074e4c V.E..... ... 0,324-912,492 #7f0f00b9 app:id/material_drawer_account_header_text_section}
android.support.v7.widget.AppCompatTextView{9bfae95 V.ED.... ... 48,27-744,84 #7f0f00ba app:id/material_drawer_account_header_name}
android.support.v7.widget.AppCompatTextView{a0cebaa V.ED.... ... 48,84-744,141 #7f0f00bb app:id/material_drawer_account_header_email}
android.support.v7.widget.AppCompatImageView{6ca539b V.ED.... ... 798,408-864,474 #7f0f00bc app:id/material_drawer_account_header_text_switcher}
android.view.View{e810338 V.ED.... ... 0,516-912,519}
android.widget.LinearLayout{d09d768 V.E...CL ... 0,543-912,687 #1}
android.support.v7.widget.AppCompatImageView{1399f11 V.ED.... ... 48,0-216,144 #7f0f00be app:id/material_drawer_icon}
android.widget.LinearLayout{c261876 V.E..... ... 216,0-864,144}
android.support.v7.widget.AppCompatTextView{8f08e77 V.ED.... ... 0,43-648,100 #7f0f00bf app:id/material_drawer_name}
android.support.v7.widget.AppCompatTextView{df1ae4 G.ED.... ... 0,0-0,0 #7f0f00c0 app:id/material_drawer_description}
android.widget.LinearLayout{9881b4d G.E..... ... 0,0-0,0 #7f0f00c4 app:id/material_drawer_badge_container}
android.support.v7.widget.AppCompatTextView{1d34602 G.ED.... ... 0,0-0,0 #7f0f00c3 app:id/material_drawer_badge}
android.widget.RelativeLayout{dd59b13 V......L ... 0,687-912,738 #9e626c52}
android.view.View{ce50150 V.ED.... ... 0,24-912,27 #7f0f00bd app:id/material_drawer_divider}
android.widget.LinearLayout{7c81f49 V.E...CL .S. 0,738-912,882 #2}
android.support.v7.widget.AppCompatImageView{533c04e V.ED.... .S. 48,0-216,144 #7f0f00be app:id/material_drawer_icon}
android.widget.LinearLayout{5f4d56f V.E..... .S. 216,0-864,144}
android.support.v7.widget.AppCompatTextView{520e27c V.ED.... .S. 0,43-648,100 #7f0f00bf app:id/material_drawer_name}
android.support.v7.widget.AppCompatTextView{bea6705 G.ED.... .S. 0,0-0,0 #7f0f00c0 app:id/material_drawer_description}
android.widget.LinearLayout{10f935a G.E..... .S. 0,0-0,0 #7f0f00c4 app:id/material_drawer_badge_container}
android.support.v7.widget.AppCompatTextView{423598b G.ED.... .S. 0,0-0,0 #7f0f00c3 app:id/material_drawer_badge}
android.widget.LinearLayout{4d7aa68 V.E...CL ... 0,882-912,1026 #3}
android.support.v7.widget.AppCompatImageView{a2f6e81 V.ED.... ... 48,0-216,144 #7f0f00be app:id/material_drawer_icon}
android.widget.LinearLayout{2a38b26 V.E..... ... 216,0-864,144}
android.support.v7.widget.AppCompatTextView{96c0367 V.ED.... ... 0,43-648,100 #7f0f00bf app:id/material_drawer_name}
android.support.v7.widget.AppCompatTextView{4b10514 G.ED.... ... 0,0-0,0 #7f0f00c0 app:id/material_drawer_description}
android.widget.LinearLayout{6371bd G.E..... ... 0,0-0,0 #7f0f00c4 app:id/material_drawer_badge_container}
android.support.v7.widget.AppCompatTextView{c2d33b2 G.ED.... ... 0,0-0,0 #7f0f00c3 app:id/material_drawer_badge}
android.widget.LinearLayout{2ab6f03 V.E...CL ... 0,1026-912,1170 #5}
android.support.v7.widget.AppCompatImageView{e235e80 V.ED.... ... 48,0-216,144 #7f0f00be app:id/material_drawer_icon}
android.widget.LinearLayout{2da6cb9 V.E..... ... 216,0-864,144}
android.support.v7.widget.AppCompatTextView{436d8fe V.ED.... ... 0,43-648,100 #7f0f00bf app:id/material_drawer_name}
android.support.v7.widget.AppCompatTextView{3ebf85f G.ED.... ... 0,0-0,0 #7f0f00c0 app:id/material_drawer_description}
android.widget.LinearLayout{99fe2ac G.E..... ... 0,0-0,0 #7f0f00c4 app:id/material_drawer_badge_container}
android.support.v7.widget.AppCompatTextView{d2c1b75 G.ED.... ... 0,0-0,0 #7f0f00c3 app:id/material_drawer_badge}
android.widget.RelativeLayout{da3870a V......L ... 0,1170-912,1221 #9e626c53}
android.view.View{d81bb7b V.ED.... ... 0,24-912,27 #7f0f00bd app:id/material_drawer_divider}
android.widget.LinearLayout{37e7d98 V.E...CL ... 0,1221-912,1365 #4}
android.support.v7.widget.AppCompatImageView{2aff9f1 V.ED.... ... 48,0-216,144 #7f0f00be app:id/material_drawer_icon}
android.widget.LinearLayout{47b09d6 V.E..... ... 216,0-864,144}
android.support.v7.widget.AppCompatTextView{6e69457 V.ED.... ... 0,43-648,100 #7f0f00bf app:id/material_drawer_name}
android.support.v7.widget.AppCompatTextView{3a9db44 G.ED.... ... 0,0-0,0 #7f0f00c0 app:id/material_drawer_description}
android.widget.LinearLayout{ab9442d G.E..... ... 0,0-0,0 #7f0f00c4 app:id/material_drawer_badge_container}
android.support.v7.widget.AppCompatTextView{b75ed62 G.ED.... ... 0,0-0,0 #7f0f00c3 app:id/material_drawer_badge}
我使用以下代码创建上面的json
[
{
"album": "http://MyMp3Song.Com",
"artist": "04 - Thai Mannai Vanakka",
"index": "#",
"path": "/storage/sdcard1/Download/04 - Thai Mannai Vanakkam(MyMp3Song.Com).mp3",
"title": "04 - Thai Mannai Vanakkam(MyMp3Song.Com)",
"duration": 369424,
"id": 32004
},
{
"album": "http://MyMp3Song.Com",
"artist": "04 - Thai Mannai Vanakka",
"index": "#",
"path": "/storage/sdcard1/Download/04 - Thai Mannai Vanakkam(MyMp3Song.Com).mp3",
"title": "04 - Thai Mannai Vanakkam(MyMp3Song.Com)",
"duration": 369424,
"id": 32004
}
]
我正在检索解析上面创建的响应，如下所示，
public static class SaveFavourites extends AsyncTask<Void, Void, Void> {
@Override
protected Void doInBackground(Void... params) {
String json5 = gson.toJson(favouriteTracks.getFavourite());
prefsEditor.putString("favouriteTracks", json5);
prefsEditor.commit();
return null;
}
}
但是当我解析时，它总是一个空数组。
如何使用gson解析它？
答案 0 :(得分：1)
您正在解析Favourite数组，因此您应该提供合适的类型。例如List<Favourite>：
List<Favourite> list = gson.fromJson(json5, new TypeToken<List<Favourite>>(){}.getType());
答案 1 :(得分：0)
你的json响应是jsonArray（，因为它以“[”开头），但你是以json接收它，那就是问题所在。 你可能应该使用toJsonArray或其他东西来删除它。如果仍然存在错误。问我这件事。