Having an error that Unable to find explicit activity class (startactivity from activity to fragment)
my startactivity(i_back) has a problem , I am trying to startactivity from activity to fragment. so there is no need to declare in manifest since it is fragment so I don't know why I have the error Thx in advance
android edited Nov 14 '18 at 18:10
Chris Stillwell
6,49774656
asked Nov 14 '18 at 18:02
Hongsuk ChoiHongsuk Choi
11
add a comment |
my startactivity(i_back) has a problem , I am trying to startactivity from activity to fragment. so there is no need to declare in manifest since it is fragment so I don't know why I have the error Thx in advance
android edited Nov 14 '18 at 18:10
Chris Stillwell
6,49774656
asked Nov 14 '18 at 18:02
Hongsuk ChoiHongsuk Choi
11
Please read meta.stackoverflow.com/questions/285551/…
– Gabriel Devillers
Nov 14 '18 at 18:21
add a comment |
my startactivity(i_back) has a problem , I am trying to startactivity from activity to fragment. so there is no need to declare in manifest since it is fragment so I don't know why I have the error Thx in advance
android edited Nov 14 '18 at 18:10
Chris Stillwell
6,49774656
asked Nov 14 '18 at 18:02
Hongsuk ChoiHongsuk Choi
11
my startactivity(i_back) has a problem , I am trying to startactivity from activity to fragment. so there is no need to declare in manifest since it is fragment so I don't know why I have the error Thx in advance
android android edited Nov 14 '18 at 18:10
Chris Stillwell
6,49774656
asked Nov 14 '18 at 18:02
Hongsuk ChoiHongsuk Choi
11
edited Nov 14 '18 at 18:10
Chris Stillwell
6,49774656
asked Nov 14 '18 at 18:02
Hongsuk ChoiHongsuk Choi
11
edited Nov 14 '18 at 18:10
Chris Stillwell
6,49774656
edited Nov 14 '18 at 18:10
Chris Stillwell
6,49774656
edited Nov 14 '18 at 18:10
Chris Stillwell
6,49774656
6,49774656
asked Nov 14 '18 at 18:02
Hongsuk ChoiHongsuk Choi
11
asked Nov 14 '18 at 18:02
Hongsuk ChoiHongsuk Choi
11
asked Nov 14 '18 at 18:02
Hongsuk ChoiHongsuk Choi
11
11
Please read meta.stackoverflow.com/questions/285551/…
– Gabriel Devillers
Nov 14 '18 at 18:21
add a comment |
Please read meta.stackoverflow.com/questions/285551/…
– Gabriel Devillers
Nov 14 '18 at 18:21
Please read meta.stackoverflow.com/questions/285551/…
– Gabriel Devillers
Nov 14 '18 at 18:21
Please read meta.stackoverflow.com/questions/285551/…
– Gabriel Devillers
Nov 14 '18 at 18:21
add a comment |
2 Answers
2
active
oldest
votes
You must declare activity (inside <application> tag) in manifest like that:
<activity android:name=".addressbook.ContactsFragment"/>
answered Nov 14 '18 at 18:04
DominDomin
457115
add a comment |
If your class ContactsFragment extends Fragment, you can't start it using startActivity method.
Check the docs on how to deal with fragments.
https://developer.android.com/guide/components/fragments
If your class ContactsFragment extends Activity, you must declare it in AndroidManifest.xml inside application tag, just like that.
<activity android:name=".ContactsFragment"/>
Check if your class is inside any package.
answered Nov 14 '18 at 18:12
GiovanneGiovanne
784
Thank you :) then I made my ContactsFragment extend FragmentActivity then a lot of lines were in red , is there another way to start fragment..?
– Hongsuk Choi
Nov 14 '18 at 18:25
You must have a container inside your activity layout, then replace its content with a fragment. Also, maybe the red lines when you extendedFragmentActivityare due the context change. You must usethisorContactsFragment.thisinstead ofgetActivity()onceContactsFragmentbecomes the activity itself.
– Giovanne
Nov 16 '18 at 14:10
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
You must declare activity (inside <application> tag) in manifest like that:
<activity android:name=".addressbook.ContactsFragment"/>
answered Nov 14 '18 at 18:04
DominDomin
457115
add a comment |
You must declare activity (inside <application> tag) in manifest like that:
<activity android:name=".addressbook.ContactsFragment"/>
answered Nov 14 '18 at 18:04
DominDomin
457115
add a comment |
You must declare activity (inside <application> tag) in manifest like that:
<activity android:name=".addressbook.ContactsFragment"/>
answered Nov 14 '18 at 18:04
DominDomin
457115
You must declare activity (inside <application> tag) in manifest like that:
<activity android:name=".addressbook.ContactsFragment"/>
answered Nov 14 '18 at 18:04
DominDomin
457115
answered Nov 14 '18 at 18:04
DominDomin
457115
answered Nov 14 '18 at 18:04
DominDomin
457115
answered Nov 14 '18 at 18:04
DominDomin
457115
457115
add a comment |
add a comment |
If your class ContactsFragment extends Fragment, you can't start it using startActivity method.
Check the docs on how to deal with fragments.
https://developer.android.com/guide/components/fragments
If your class ContactsFragment extends Activity, you must declare it in AndroidManifest.xml inside application tag, just like that.
<activity android:name=".ContactsFragment"/>
Check if your class is inside any package.
answered Nov 14 '18 at 18:12
GiovanneGiovanne
784
Thank you :) then I made my ContactsFragment extend FragmentActivity then a lot of lines were in red , is there another way to start fragment..?
– Hongsuk Choi
Nov 14 '18 at 18:25
You must have a container inside your activity layout, then replace its content with a fragment. Also, maybe the red lines when you extendedFragmentActivityare due the context change. You must usethisorContactsFragment.thisinstead ofgetActivity()onceContactsFragmentbecomes the activity itself.
– Giovanne
Nov 16 '18 at 14:10
add a comment |
If your class ContactsFragment extends Fragment, you can't start it using startActivity method.
Check the docs on how to deal with fragments.
https://developer.android.com/guide/components/fragments
If your class ContactsFragment extends Activity, you must declare it in AndroidManifest.xml inside application tag, just like that.
<activity android:name=".ContactsFragment"/>
Check if your class is inside any package.
answered Nov 14 '18 at 18:12
GiovanneGiovanne
784
Thank you :) then I made my ContactsFragment extend FragmentActivity then a lot of lines were in red , is there another way to start fragment..?
– Hongsuk Choi
Nov 14 '18 at 18:25
You must have a container inside your activity layout, then replace its content with a fragment. Also, maybe the red lines when you extendedFragmentActivityare due the context change. You must usethisorContactsFragment.thisinstead ofgetActivity()onceContactsFragmentbecomes the activity itself.
– Giovanne
Nov 16 '18 at 14:10
add a comment |
If your class ContactsFragment extends Fragment, you can't start it using startActivity method.
Check the docs on how to deal with fragments.
https://developer.android.com/guide/components/fragments
If your class ContactsFragment extends Activity, you must declare it in AndroidManifest.xml inside application tag, just like that.
<activity android:name=".ContactsFragment"/>
Check if your class is inside any package.
answered Nov 14 '18 at 18:12
GiovanneGiovanne
784
If your class ContactsFragment extends Fragment, you can't start it using startActivity method.
Check the docs on how to deal with fragments.
https://developer.android.com/guide/components/fragments
If your class ContactsFragment extends Activity, you must declare it in AndroidManifest.xml inside application tag, just like that.
<activity android:name=".ContactsFragment"/>
Check if your class is inside any package.
answered Nov 14 '18 at 18:12
GiovanneGiovanne
784
answered Nov 14 '18 at 18:12
GiovanneGiovanne
784
answered Nov 14 '18 at 18:12
GiovanneGiovanne
784
answered Nov 14 '18 at 18:12
GiovanneGiovanne
784
784
Thank you :) then I made my ContactsFragment extend FragmentActivity then a lot of lines were in red , is there another way to start fragment..?
– Hongsuk Choi
Nov 14 '18 at 18:25
You must have a container inside your activity layout, then replace its content with a fragment. Also, maybe the red lines when you extendedFragmentActivityare due the context change. You must usethisorContactsFragment.thisinstead ofgetActivity()onceContactsFragmentbecomes the activity itself.
– Giovanne
Nov 16 '18 at 14:10
add a comment |
Thank you :) then I made my ContactsFragment extend FragmentActivity then a lot of lines were in red , is there another way to start fragment..?
– Hongsuk Choi
Nov 14 '18 at 18:25
You must have a container inside your activity layout, then replace its content with a fragment. Also, maybe the red lines when you extendedFragmentActivityare due the context change. You must usethisorContactsFragment.thisinstead ofgetActivity()onceContactsFragmentbecomes the activity itself.
– Giovanne
Nov 16 '18 at 14:10
Thank you :) then I made my ContactsFragment extend FragmentActivity then a lot of lines were in red , is there another way to start fragment..?
– Hongsuk Choi
Nov 14 '18 at 18:25
Thank you :) then I made my ContactsFragment extend FragmentActivity then a lot of lines were in red , is there another way to start fragment..?
– Hongsuk Choi
Nov 14 '18 at 18:25
You must have a container inside your activity layout, then replace its content with a fragment. Also, maybe the red lines when you extended
FragmentActivity are due the context change. You must use this or ContactsFragment.this instead of getActivity() once ContactsFragment becomes the activity itself.– Giovanne
Nov 16 '18 at 14:10
You must have a container inside your activity layout, then replace its content with a fragment. Also, maybe the red lines when you extended
FragmentActivity are due the context change. You must use this or ContactsFragment.this instead of getActivity() once ContactsFragment becomes the activity itself.– Giovanne
Nov 16 '18 at 14:10
add a comment |
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Please read meta.stackoverflow.com/questions/285551/…
– Gabriel Devillers
Nov 14 '18 at 18:21