Add fragment to an activity
-1
I'm having trouble adding a fragment to an activity.
When i open the app in Landscape mode the fragment is working as it should and displays the infos next to the list.
But when i try to display infos in portrait mode the app starts a new activity but doesnt display the fragment.
The activity that is opened with the fragment is empty.
The App doesn't even go into the function onCreateView because the Log.d(TAG, "onCreateView: ciao") is never executed.
Here is the Java code:
public class ActivityMain extends AppCompatActivity {
private static final String TAG = "ActivityMain";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Log.d(TAG, "onCreate: started");
LeftFragment leftFragment = new LeftFragment();
FragmentManager manager = getSupportFragmentManager();
manager.beginTransaction().replace(R.id.mainLayout, leftFragment).commit();
}
}
public class LeftFragment extends Fragment {
private static final String TAG = "LeftFragment";
public LeftFragment() {
// Required empty public constructor
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
Log.d(TAG, "onCreateView: ciao");
View view = inflater.inflate(R.layout.frag, container, false);
ListView listView = (ListView) view.findViewById(R.id.list2);
/* 100 Zufallszahlen in ArrayList "names" schreiben */
Random rand = new Random();
int n = rand.nextInt(200)+1;
for(int i = 0; i <= 100; i++)
{
n = rand.nextInt(200)+1;
DataContainer.names.add(Integer.toString(n));
}
/* Arrayadapter initialisieren, der Adapter holt sich seine Daten aus der ihm zugewiesenen Liste "names"
die listview bekommt einen Adapter zugewiesen, der sie mit den Daten aus der Liste versorgt
*/
ArrayAdapter adapter = new ArrayAdapter(getContext(), android.R.layout.simple_list_item_1, DataContainer.names);
listView.setAdapter(adapter);
/* Onclick Listener für die Listenelemente */
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
String selectedData = DataContainer.names.get(position);
DetailsFragment detailsFragment = new DetailsFragment();
Bundle bundle = new Bundle();
bundle.putString("selected_data", selectedData);
detailsFragment.setArguments(bundle);
if(getResources().getConfiguration().orientation == Configuration.ORIENTATION_PORTRAIT) {
Intent intent;
intent = new Intent(getActivity(), Activity_second.class);
Log.w(TAG, "onItemClick: " + intent);
intent.putExtra("selected_data", selectedData);
startActivity(intent);
}
else
{
FragmentManager manager = getFragmentManager();
manager.beginTransaction().replace(R.id.detailLayout, detailsFragment).commit();
}
}
});
return view;
}
public static class DataContainer{
static ArrayList<String> names = new ArrayList<>();
//static ArrayList<String> details = new ArrayList<>();
}
}
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_details, container, false);
TextView TextDetailHeadline = (TextView)view.findViewById(R.id.TextDetailHeadline);
TextView TextDetails = (TextView)view.findViewById(R.id.TextDetails);
Bundle bundle = getArguments();
if(bundle != null) {
if (bundle.getString("selected_data") != null){
TextDetailHeadline.setText(bundle.getString("selected_data"));
TextDetails.setText(bundle.getString("selected_data"));
}
}
return view;
}
}
public class Activity_second extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_details);
FragmentManager manager = getSupportFragmentManager();
DetailsFragment detailsFragment = new DetailsFragment();
detailsFragment.setArguments(getIntent().getExtras());
manager.beginTransaction().replace(R.id.detailLayout, detailsFragment).commit();
}
}
Found the error by myself: my Activity_Second linked to the wrong XML file in line:
setContentView(R.layout.activity_details);
..Yikes
android 
android-fragments android-intent android-activity asked Nov 22 at 23:31
Fleet23
11
add a comment |
-1
I'm having trouble adding a fragment to an activity.
When i open the app in Landscape mode the fragment is working as it should and displays the infos next to the list.
But when i try to display infos in portrait mode the app starts a new activity but doesnt display the fragment.
The activity that is opened with the fragment is empty.
The App doesn't even go into the function onCreateView because the Log.d(TAG, "onCreateView: ciao") is never executed.
Here is the Java code:
public class ActivityMain extends AppCompatActivity {
private static final String TAG = "ActivityMain";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Log.d(TAG, "onCreate: started");
LeftFragment leftFragment = new LeftFragment();
FragmentManager manager = getSupportFragmentManager();
manager.beginTransaction().replace(R.id.mainLayout, leftFragment).commit();
}
}
public class LeftFragment extends Fragment {
private static final String TAG = "LeftFragment";
public LeftFragment() {
// Required empty public constructor
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
Log.d(TAG, "onCreateView: ciao");
View view = inflater.inflate(R.layout.frag, container, false);
ListView listView = (ListView) view.findViewById(R.id.list2);
/* 100 Zufallszahlen in ArrayList "names" schreiben */
Random rand = new Random();
int n = rand.nextInt(200)+1;
for(int i = 0; i <= 100; i++)
{
n = rand.nextInt(200)+1;
DataContainer.names.add(Integer.toString(n));
}
/* Arrayadapter initialisieren, der Adapter holt sich seine Daten aus der ihm zugewiesenen Liste "names"
die listview bekommt einen Adapter zugewiesen, der sie mit den Daten aus der Liste versorgt
*/
ArrayAdapter adapter = new ArrayAdapter(getContext(), android.R.layout.simple_list_item_1, DataContainer.names);
listView.setAdapter(adapter);
/* Onclick Listener für die Listenelemente */
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
String selectedData = DataContainer.names.get(position);
DetailsFragment detailsFragment = new DetailsFragment();
Bundle bundle = new Bundle();
bundle.putString("selected_data", selectedData);
detailsFragment.setArguments(bundle);
if(getResources().getConfiguration().orientation == Configuration.ORIENTATION_PORTRAIT) {
Intent intent;
intent = new Intent(getActivity(), Activity_second.class);
Log.w(TAG, "onItemClick: " + intent);
intent.putExtra("selected_data", selectedData);
startActivity(intent);
}
else
{
FragmentManager manager = getFragmentManager();
manager.beginTransaction().replace(R.id.detailLayout, detailsFragment).commit();
}
}
});
return view;
}
public static class DataContainer{
static ArrayList<String> names = new ArrayList<>();
//static ArrayList<String> details = new ArrayList<>();
}
}
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_details, container, false);
TextView TextDetailHeadline = (TextView)view.findViewById(R.id.TextDetailHeadline);
TextView TextDetails = (TextView)view.findViewById(R.id.TextDetails);
Bundle bundle = getArguments();
if(bundle != null) {
if (bundle.getString("selected_data") != null){
TextDetailHeadline.setText(bundle.getString("selected_data"));
TextDetails.setText(bundle.getString("selected_data"));
}
}
return view;
}
}
public class Activity_second extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_details);
FragmentManager manager = getSupportFragmentManager();
DetailsFragment detailsFragment = new DetailsFragment();
detailsFragment.setArguments(getIntent().getExtras());
manager.beginTransaction().replace(R.id.detailLayout, detailsFragment).commit();
}
}
Found the error by myself: my Activity_Second linked to the wrong XML file in line:
setContentView(R.layout.activity_details);
..Yikes
android android-fragments android-intent android-activity asked Nov 22 at 23:31
Fleet23
11
Please post the portraitactivity_mainlayout.
– Mike M.
Nov 23 at 0:10
Please post your activity_main especially if you have custom activity_main for portrait, and post your manifest
– Momen Zaqout
Nov 23 at 0:30
Found the error and edited my post with the correct code. Thanks to you two!
– Fleet23
Nov 23 at 18:06
add a comment |
-1
-1
-1
I'm having trouble adding a fragment to an activity.
When i open the app in Landscape mode the fragment is working as it should and displays the infos next to the list.
But when i try to display infos in portrait mode the app starts a new activity but doesnt display the fragment.
The activity that is opened with the fragment is empty.
The App doesn't even go into the function onCreateView because the Log.d(TAG, "onCreateView: ciao") is never executed.
Here is the Java code:
public class ActivityMain extends AppCompatActivity {
private static final String TAG = "ActivityMain";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Log.d(TAG, "onCreate: started");
LeftFragment leftFragment = new LeftFragment();
FragmentManager manager = getSupportFragmentManager();
manager.beginTransaction().replace(R.id.mainLayout, leftFragment).commit();
}
}
public class LeftFragment extends Fragment {
private static final String TAG = "LeftFragment";
public LeftFragment() {
// Required empty public constructor
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
Log.d(TAG, "onCreateView: ciao");
View view = inflater.inflate(R.layout.frag, container, false);
ListView listView = (ListView) view.findViewById(R.id.list2);
/* 100 Zufallszahlen in ArrayList "names" schreiben */
Random rand = new Random();
int n = rand.nextInt(200)+1;
for(int i = 0; i <= 100; i++)
{
n = rand.nextInt(200)+1;
DataContainer.names.add(Integer.toString(n));
}
/* Arrayadapter initialisieren, der Adapter holt sich seine Daten aus der ihm zugewiesenen Liste "names"
die listview bekommt einen Adapter zugewiesen, der sie mit den Daten aus der Liste versorgt
*/
ArrayAdapter adapter = new ArrayAdapter(getContext(), android.R.layout.simple_list_item_1, DataContainer.names);
listView.setAdapter(adapter);
/* Onclick Listener für die Listenelemente */
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
String selectedData = DataContainer.names.get(position);
DetailsFragment detailsFragment = new DetailsFragment();
Bundle bundle = new Bundle();
bundle.putString("selected_data", selectedData);
detailsFragment.setArguments(bundle);
if(getResources().getConfiguration().orientation == Configuration.ORIENTATION_PORTRAIT) {
Intent intent;
intent = new Intent(getActivity(), Activity_second.class);
Log.w(TAG, "onItemClick: " + intent);
intent.putExtra("selected_data", selectedData);
startActivity(intent);
}
else
{
FragmentManager manager = getFragmentManager();
manager.beginTransaction().replace(R.id.detailLayout, detailsFragment).commit();
}
}
});
return view;
}
public static class DataContainer{
static ArrayList<String> names = new ArrayList<>();
//static ArrayList<String> details = new ArrayList<>();
}
}
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_details, container, false);
TextView TextDetailHeadline = (TextView)view.findViewById(R.id.TextDetailHeadline);
TextView TextDetails = (TextView)view.findViewById(R.id.TextDetails);
Bundle bundle = getArguments();
if(bundle != null) {
if (bundle.getString("selected_data") != null){
TextDetailHeadline.setText(bundle.getString("selected_data"));
TextDetails.setText(bundle.getString("selected_data"));
}
}
return view;
}
}
public class Activity_second extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_details);
FragmentManager manager = getSupportFragmentManager();
DetailsFragment detailsFragment = new DetailsFragment();
detailsFragment.setArguments(getIntent().getExtras());
manager.beginTransaction().replace(R.id.detailLayout, detailsFragment).commit();
}
}
Found the error by myself: my Activity_Second linked to the wrong XML file in line:
setContentView(R.layout.activity_details);
..Yikes
android android-fragments android-intent android-activity asked Nov 22 at 23:31
Fleet23
11
I'm having trouble adding a fragment to an activity.
When i open the app in Landscape mode the fragment is working as it should and displays the infos next to the list.
But when i try to display infos in portrait mode the app starts a new activity but doesnt display the fragment.
The activity that is opened with the fragment is empty.
The App doesn't even go into the function onCreateView because the Log.d(TAG, "onCreateView: ciao") is never executed.
Here is the Java code:
public class ActivityMain extends AppCompatActivity {
private static final String TAG = "ActivityMain";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Log.d(TAG, "onCreate: started");
LeftFragment leftFragment = new LeftFragment();
FragmentManager manager = getSupportFragmentManager();
manager.beginTransaction().replace(R.id.mainLayout, leftFragment).commit();
}
}
public class LeftFragment extends Fragment {
private static final String TAG = "LeftFragment";
public LeftFragment() {
// Required empty public constructor
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
Log.d(TAG, "onCreateView: ciao");
View view = inflater.inflate(R.layout.frag, container, false);
ListView listView = (ListView) view.findViewById(R.id.list2);
/* 100 Zufallszahlen in ArrayList "names" schreiben */
Random rand = new Random();
int n = rand.nextInt(200)+1;
for(int i = 0; i <= 100; i++)
{
n = rand.nextInt(200)+1;
DataContainer.names.add(Integer.toString(n));
}
/* Arrayadapter initialisieren, der Adapter holt sich seine Daten aus der ihm zugewiesenen Liste "names"
die listview bekommt einen Adapter zugewiesen, der sie mit den Daten aus der Liste versorgt
*/
ArrayAdapter adapter = new ArrayAdapter(getContext(), android.R.layout.simple_list_item_1, DataContainer.names);
listView.setAdapter(adapter);
/* Onclick Listener für die Listenelemente */
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
String selectedData = DataContainer.names.get(position);
DetailsFragment detailsFragment = new DetailsFragment();
Bundle bundle = new Bundle();
bundle.putString("selected_data", selectedData);
detailsFragment.setArguments(bundle);
if(getResources().getConfiguration().orientation == Configuration.ORIENTATION_PORTRAIT) {
Intent intent;
intent = new Intent(getActivity(), Activity_second.class);
Log.w(TAG, "onItemClick: " + intent);
intent.putExtra("selected_data", selectedData);
startActivity(intent);
}
else
{
FragmentManager manager = getFragmentManager();
manager.beginTransaction().replace(R.id.detailLayout, detailsFragment).commit();
}
}
});
return view;
}
public static class DataContainer{
static ArrayList<String> names = new ArrayList<>();
//static ArrayList<String> details = new ArrayList<>();
}
}
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_details, container, false);
TextView TextDetailHeadline = (TextView)view.findViewById(R.id.TextDetailHeadline);
TextView TextDetails = (TextView)view.findViewById(R.id.TextDetails);
Bundle bundle = getArguments();
if(bundle != null) {
if (bundle.getString("selected_data") != null){
TextDetailHeadline.setText(bundle.getString("selected_data"));
TextDetails.setText(bundle.getString("selected_data"));
}
}
return view;
}
}
public class Activity_second extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_details);
FragmentManager manager = getSupportFragmentManager();
DetailsFragment detailsFragment = new DetailsFragment();
detailsFragment.setArguments(getIntent().getExtras());
manager.beginTransaction().replace(R.id.detailLayout, detailsFragment).commit();
}
}
Found the error by myself: my Activity_Second linked to the wrong XML file in line:
setContentView(R.layout.activity_details);
..Yikes
android android-fragments android-intent android-activity android android-fragments android-intent android-activity asked Nov 22 at 23:31
Fleet23
11
asked Nov 22 at 23:31
Fleet23
11
edited Nov 23 at 18:06
asked Nov 22 at 23:31
Fleet23
11
asked Nov 22 at 23:31
Fleet23
11
asked Nov 22 at 23:31
Fleet23
11
11
Please post the portraitactivity_mainlayout.
– Mike M.
Nov 23 at 0:10
Please post your activity_main especially if you have custom activity_main for portrait, and post your manifest
– Momen Zaqout
Nov 23 at 0:30
Found the error and edited my post with the correct code. Thanks to you two!
– Fleet23
Nov 23 at 18:06
add a comment |
Please post the portraitactivity_mainlayout.
– Mike M.
Nov 23 at 0:10
Please post your activity_main especially if you have custom activity_main for portrait, and post your manifest
– Momen Zaqout
Nov 23 at 0:30
Found the error and edited my post with the correct code. Thanks to you two!
– Fleet23
Nov 23 at 18:06
Please post the portrait
activity_main layout.– Mike M.
Nov 23 at 0:10
Please post the portrait
activity_main layout.– Mike M.
Nov 23 at 0:10
Please post your activity_main especially if you have custom activity_main for portrait, and post your manifest
– Momen Zaqout
Nov 23 at 0:30
Please post your activity_main especially if you have custom activity_main for portrait, and post your manifest
– Momen Zaqout
Nov 23 at 0:30
Found the error and edited my post with the correct code. Thanks to you two!
– Fleet23
Nov 23 at 18:06
Found the error and edited my post with the correct code. Thanks to you two!
– Fleet23
Nov 23 at 18:06
add a comment |
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Please post the portrait
activity_mainlayout.– Mike M.
Nov 23 at 0:10
Please post your activity_main especially if you have custom activity_main for portrait, and post your manifest
– Momen Zaqout
Nov 23 at 0:30
Found the error and edited my post with the correct code. Thanks to you two!
– Fleet23
Nov 23 at 18:06