Android Studio Alert Dialog Dont Show Again
Overview
DialogFragment is a specialized Fragment used when you lot want to display an overlay modal window inside an activity that floats on height of the residue of the content.
This is typically used for displaying an alert dialog, a ostend dialog, or prompting the user for information within an overlay without having to switch to another Action.
DialogFragment is now the canonical way to display overlays; using Dialog straight is considered bad practice.
Usage
The minimum that must exist implemented when creating a DialogFragment is either the onCreateView method or the onCreateDialog method. Apply onCreateView when the entire view of the dialog is going to exist divers via custom XML. Utilise onCreateDialog when you just demand to construct and configure a standard Dialog class (such equally AlertDialog) to display.
Note: The entire guide below requires every fragment related class imported to use the androidx.fragment.app namespace and non the android.app namespace. If any imported class (FragmentManager, DialogFragment, etc) uses the android.app namespace, compile-time errors will occur.
Custom View
Allow's get-go by providing the code for creating a completely custom dialog based on an XML view. Start, an case fragment XML file in res/layout/fragment_edit_name.xml:
<!-- fragment_edit_name.xml --> <LinearLayout xmlns:android= "http://schemas.android.com/apk/res/android" android:id= "@+id/edit_name" android:layout_width= "wrap_content" android:layout_height= "wrap_content" android:layout_gravity= "middle" android:orientation= "vertical" > <TextView android:id= "@+id/lbl_your_name" android:text= "Your name" android:layout_width= "wrap_content" android:layout_height= "wrap_content" /> <EditText android:id= "@+id/txt_your_name" android:layout_width= "match_parent" android:layout_height= "wrap_content" android:inputType= "text" android:imeOptions= "actionDone" /> </LinearLayout> and defining the fragment itself extending from the back up version of dialog fragment:
import androidx.fragment.app.DialogFragment ; // ... public class EditNameDialogFragment extends DialogFragment { individual EditText mEditText ; public EditNameDialogFragment () { // Empty constructor is required for DialogFragment // Make sure non to add together arguments to the constructor // Apply `newInstance` instead as shown beneath } public static EditNameDialogFragment newInstance ( String title ) { EditNameDialogFragment frag = new EditNameDialogFragment (); Bundle args = new Bundle (); args . putString ( "title" , title ); frag . setArguments ( args ); return frag ; } @Override public View onCreateView ( LayoutInflater inflater , ViewGroup container , Package savedInstanceState ) { return inflater . inflate ( R . layout . fragment_edit_name , container ); } @Override public void onViewCreated ( View view , @Nullable Parcel savedInstanceState ) { super . onViewCreated ( view , savedInstanceState ); // Go field from view mEditText = ( EditText ) view . findViewById ( R . id . txt_your_name ); // Fetch arguments from bundle and set up championship String title = getArguments (). getString ( "title" , "Enter Proper name" ); getDialog (). setTitle ( title ); // Show soft keyboard automatically and request focus to field mEditText . requestFocus (); getDialog (). getWindow (). setSoftInputMode ( WindowManager . LayoutParams . SOFT_INPUT_STATE_VISIBLE ); } } and showing the dialog in an Action extending AppCompatActivity:
// Note: `FragmentActivity` works here likewise public class DialogDemoActivity extends AppCompatActivity { @Override public void onCreate ( Bundle savedInstanceState ) { super . onCreate ( savedInstanceState ); setContentView ( R . layout . main ); showEditDialog (); } private void showEditDialog () { FragmentManager fm = getSupportFragmentManager (); EditNameDialogFragment editNameDialogFragment = EditNameDialogFragment . newInstance ( "Some Championship" ); editNameDialogFragment . evidence ( fm , "fragment_edit_name" ); } } For this to work properly make certain that all the fragment related items (FragmentDialog) are from the androidx.fragment.app namespace.
Build Dialog
2d, let's take a wait at how to build a dialog simply by customizing the bachelor Dialog objects that we can construct. For more details about the unlike types of dialogs, check out the "Things to Annotation" department below.
course MyAlertDialogFragment extends DialogFragment { public MyAlertDialogFragment () { // Empty constructor required for DialogFragment } public static MyAlertDialogFragment newInstance ( String title ) { MyAlertDialogFragment frag = new MyAlertDialogFragment (); Bundle args = new Bundle (); args . putString ( "title" , championship ); frag . setArguments ( args ); return frag ; } @Override public Dialog onCreateDialog ( Bundle savedInstanceState ) { String title = getArguments (). getString ( "title" ); AlertDialog . Builder alertDialogBuilder = new AlertDialog . Builder ( getActivity ()); alertDialogBuilder . setTitle ( championship ); alertDialogBuilder . setMessage ( "Are yous certain?" ); alertDialogBuilder . setPositiveButton ( "OK" , new DialogInterface . OnClickListener () { @Override public void onClick ( DialogInterface dialog , int which ) { // on success } }); alertDialogBuilder . setNegativeButton ( "Cancel" , new DialogInterface . OnClickListener () { @Override public void onClick ( DialogInterface dialog , int which ) { if ( dialog != goose egg && dialog . isShowing ()) { dialog . dismiss (); } } }); return alertDialogBuilder . create (); } } and to display the alert dialog in an activity extending AppCompatActivity:
public form DialogDemoActivity extends AppCompatActivity { @Override public void onCreate ( Package savedInstanceState ) { super . onCreate ( savedInstanceState ); setContentView ( R . layout . main ); showAlertDialog (); } private void showAlertDialog () { FragmentManager fm = getSupportFragmentManager (); MyAlertDialogFragment alertDialog = MyAlertDialogFragment . newInstance ( "Some title" ); alertDialog . show ( fm , "fragment_alert" ); } } Passing Data to Activeness
To pass data from a dialog to an Activity, use the same approach y'all would use for any fragment which is creating a custom listener. In short, you will need to practise the following:
- Define an interface with methods that can be invoked to pass data outcome to the activity
- Setup a view event which invokes the custom listener passing data through the method
- Implement the interface in the Activity defining behavior for when the event is triggered
This case below demonstrates how to laissez passer a data upshot back to the activity when the "Done" push button is pressed on the keyboard but this works similarly for other cases or for the AlertDialog (only use the listeners defined for each of the buttons):
public class EditNameDialogFragment extends DialogFragment implements OnEditorActionListener { private EditText mEditText ; // ane. Defines the listener interface with a method passing back data result. public interface EditNameDialogListener { void onFinishEditDialog ( Cord inputText ); } // ... @Override public void onViewCreated ( View view , @Nullable Bundle savedInstanceState ) { // ... // ii. Setup a callback when the "Done" button is pressed on keyboard mEditText . setOnEditorActionListener ( this ); } // Fires whenever the textfield has an action performed // In this case, when the "Done" button is pressed // REQUIRES a 'soft keyboard' (virtual keyboard) @Override public boolean onEditorAction ( TextView v , int actionId , KeyEvent event ) { if ( EditorInfo . IME_ACTION_DONE == actionId ) { // Return input text back to activity through the implemented listener EditNameDialogListener listener = ( EditNameDialogListener ) getActivity (); listener . onFinishEditDialog ( mEditText . getText (). toString ()); // Close the dialog and return back to the parent activeness dismiss (); return truthful ; } return fake ; } } and have the activity define the activeness to take when the dialog has the information:
public class DialogDemoActivity extends AppCompatActivity implements EditNameDialogListener { // ... // three. This method is invoked in the activity when the listener is triggered // Access the data result passed to the action here @Override public void onFinishEditDialog ( Cord inputText ) { Toast . makeText ( this , "Hi, " + inputText , Toast . LENGTH_SHORT ). testify (); } } Notation: setOnEditorActionListener used higher up to dismiss requires the utilise of the soft keyboard in the emulator which can exist enabled through AVD or past testing on a device. If you don't want to enable soft keyboard, you may want to dismiss on a button click or on a keypress instead.
Passing Data to Parent Fragment
In certain situations, the a dialog fragment may be invoked inside the context of some other fragment. For example, a screen has tabs with a class contained in a fragment. The course has an input for selecting dates using a date picker in a dialog. In this case, nosotros may want to pass the date back not to the activeness but instead to the parent fragment. This information can be passed back straight to the parent fragment:
import androidx.fragment.app.DialogFragment ; public class EditNameDialogFragment extends DialogFragment { // Defines the listener interface public interface EditNameDialogListener { void onFinishEditDialog ( String inputText ); } // Telephone call this method to send the data back to the parent fragment public void sendBackResult () { // Notice the utilize of `getTargetFragment` which will be ready when the dialog is displayed EditNameDialogListener listener = ( EditNameDialogListener ) getTargetFragment (); listener . onFinishEditDialog ( mEditText . getText (). toString ()); dismiss (); } } And so the dialog must exist displayed within a parent fragment passing the target via setTargetFragment with:
import androidx.fragment.app.Fragment ; public grade MyParentFragment extends Fragment implements EditNameDialogListener { // Call this method to launch the edit dialog private void showEditDialog () { FragmentManager fm = getFragmentManager (); EditNameDialogFragment editNameDialogFragment = EditNameDialog . newInstance ( "Some Title" ); // SETS the target fragment for employ later when sending results editNameDialogFragment . setTargetFragment ( MyParentFragment . this , 300 ); editNameDialogFragment . bear witness ( fm , "fragment_edit_name" ); } // This is called when the dialog is completed and the results have been passed @Override public void onFinishEditDialog ( String inputText ) { Toast . makeText ( this , "Howdy, " + inputText , Toast . LENGTH_SHORT ). show (); } } Troubleshooting
If you lot are having whatever problems, exist sure to use the checklist below:
- In parent fragment, earlier calling
dialogFragment.bear witness(), are yous callingsetTargetFragmentand passing in the correct fragment as the target? - In the dialog fragment, before calling
dismiss(), are you callinglistener.someCallbackMethod()on a listener casted from thegetTargetFragment()passed in above? - Have you correctly implemented the interface and callback method fired i.east
listener.someCallbackMethod()within of the parent fragment? - Try breakpointing each of those lines to make sure the target fragment is set property and the callback method is being executed.
With that, the two fragments are able to pass data back and forth.
Styling Dialogs
Styling Custom Dialog
Styling a DialogFragment with a custom layout works just the same as styling any views. Styling a dialog or AlertDialog requires changing several key backdrop in styles.xml such as the dialogTheme and alertDialogTheme as shown in this app here and shown below in res/values/styles.xml:
<!-- In res/values/colors.xml --> <color proper noun= "dark_blue" >#180065</color> <color proper noun= "light_blue" >#334ee9ff</color> <color name= "medium_green" >#3d853e</colour> <color proper noun= "light_green" >#3c2ae668</color> <!-- In res/values/styles.xml --> <way name= "AppTheme" parent= "Theme.AppCompat.Light" > <!-- Utilize default style for dialogs --> <item name= "android:dialogTheme" >@style/AppDialogTheme</item> <!-- Apply default style for alert dialogs --> <particular proper noun= "android:alertDialogTheme" >@fashion/AppAlertTheme</item> </manner> <!-- Define your custom dialog theme hither extending from base --> <mode name= "AppDialogTheme" parent= "Theme.AppCompat.Light.Dialog" > <!-- Define color backdrop as desired --> <item name= "colorPrimary" >@colour/dark_blue</item> <item proper noun= "colorPrimaryDark" >#000</item> <particular name= "android:textColorHighlight" >@color/light_blue</detail> <item proper name= "colorAccent" >@color/dark_blue</item> <item name= "colorControlNormal" >@color/dark_blue</item> <!-- Define window properties as desired --> <detail proper noun= "android:windowNoTitle" >false</item> <item name= "android:windowFullscreen" >false</detail> <particular name= "android:windowBackground" >@color/medium_green</item> <particular name= "android:windowIsFloating" >true</item> <item proper name= "android:windowCloseOnTouchOutside" >true</item> </manner> <!-- Ascertain your custom alert theme here extending from base --> <way name= "AppAlertTheme" parent= "Theme.AppCompat.Low-cal.Dialog.Alert" > <item name= "colorPrimary" >@color/dark_blue</detail> <item name= "colorAccent" >@color/dark_blue</particular> <item name= "colorPrimaryDark" >#000</item> <item name= "colorControlNormal" >@color/dark_blue</particular> <item proper noun= "android:textColorHighlight" >@colour/light_blue</detail> </way> Dialog Styling Workaround
Note: There is currently a issues in the back up library that causes styles not to bear witness up properly. Changing the DialogFragment in the onCreateView to use the activity's inflater seems to resolve the issue:
@Override public View onCreateView ( LayoutInflater inflater , ViewGroup container , Bundle savedInstanceState ) { return getActivity (). getLayoutInflater (). inflate ( R . layout . fragment_edit_name , container ); } All dialog widgets should at present be properly themed. Cheque out this stackoverflow mail service for details.
Styling Titlebar of Dialog
The titlebar can be styled using the "android:windowTitleStyle" as follows:
<mode proper name= "AppTheme" parent= "Theme.AppCompat.Light" > <!-- Apply default way for dialogs --> <item name= "android:dialogTheme" >@style/AppDialogTheme</particular> <!-- Utilize default style for alarm dialogs --> <particular proper name= "android:alertDialogTheme" >@style/AppAlertTheme</item> </style> <fashion name= "AppDialogTheme" parent= "Theme.AppCompat.Light.Dialog" > <item name= "android:windowTitleStyle" >@manner/DialogWindowTitle</item> <!-- ...other stuff hither... --> </style> <style name= "AppAlertTheme" parent= "Theme.AppCompat.Light.Dialog.Alert" > <item name= "android:windowTitleStyle" >@style/DialogWindowTitle</particular> <!-- ...other stuff here... --> </style> <way proper name= "DialogWindowTitle" parent= "Base.DialogWindowTitle.AppCompat" > <item proper noun= "android:groundwork" >@color/light_green</item> <particular name= "android:gravity" >center</particular> <item name= "android:textAppearance" >@style/DialogWindowTitleText</item> </style> <style name= "DialogWindowTitleText" parent= "@android:style/TextAppearance.DialogWindowTitle" > <particular proper noun= "android:textSize" >24sp</item> </style> Removing the TitleBar from the Dialog
The TitleBar can be easily removed from your DialogFragment by overriding the onCreateDialog method:
@Override public Dialog onCreateDialog ( Bundle savedInstanceState ) { Dialog dialog = super . onCreateDialog ( savedInstanceState ); // request a window without the title dialog . getWindow (). requestFeature ( Window . FEATURE_NO_TITLE ); render dialog ; } This will give you lot a dialog box without a title bar. Read more in this StackOverflow post
Transparent Dialogs
Nosotros tin can brand the dialog (or the title of the dialog) translucent using the android:windowBackground property:
<style name= "AppDialogTheme" parent= "Theme.AppCompat.Light.Dialog" > <item proper noun= "android:windowIsTranslucent" >truthful</item> <item name= "android:windowBackground" >@android:color/transparent</detail> <!-- ...other stuff hither... --> </way> Notation that this removes the default background prototype from the dialog @drawable/abc_dialog_material_background_light and as a outcome the shadow and border is removed.
To consummate the transparent result, make sure to set the blastoff channel of the background colors as outlined here to make any groundwork colors semi-transparent.
Styling with Tertiary-Party Libraries
Notation that third party cloth libraries such every bit textile-dialogs can be used to simplify and improve dialog styling as well.
In club to utilize the "material-dialogs" library, you will demand to add in maven repository to your build.gradle file. Your gradle file should wait something like this.
Sizing Dialogs
Runtime Dimensions
In sure situations, yous may desire to explicitly set the height and width of the DialogFragment at runtime during creation. This tin can be done easily with getDialog().getWindow() as follows. In the XML simply set the root layout to wrap_content with:
<!-- fragment_edit_name.xml --> <LinearLayout xmlns:android= "http://schemas.android.com/apk/res/android" android:id= "@+id/edit_name" android:layout_width= "wrap_content" android:layout_height= "wrap_content" > <!-- ...subviews here... --> </LinearLayout> In the DialogFragment java source we tin can gear up the width and tiptop onResume with:
public void onResume () { int width = getResources (). getDimensionPixelSize ( R . dimen . popup_width ); int superlative = getResources (). getDimensionPixelSize ( R . dimen . popup_height ); getDialog (). getWindow (). setLayout ( width , meridian ); // Call super onResume afterward sizing super . onResume (); } See this stackoverflow post for more information. Using this approach we could set the dialog's width as a percent of the screen within the DialogFragment with:
public void onResume () { // Store access variables for window and blank bespeak Window window = getDialog (). getWindow (); Point size = new Point (); // Store dimensions of the screen in `size` Display display = window . getWindowManager (). getDefaultDisplay (); display . getSize ( size ); // Fix the width of the dialog proportional to 75% of the screen width window . setLayout (( int ) ( size . x * 0.75 ), WindowManager . LayoutParams . WRAP_CONTENT ); window . setGravity ( Gravity . Heart ); // Call super onResume subsequently sizing super . onResume (); } Meet this stackoverflow post for the source reference.
Sizing Adjustments for Soft Keyboard
When displaying a dialog that is accepting text input, there tin can frequently be limited space on screen considering the soft keyboard on screen eats up a lot of room. To account for this, you may want to modify the android:windowSoftInputMode property for the activity inside the AndroidManifest.xml file:
<!-- Configures the UI to be resized to make room for the keyboard --> <activity android:proper noun= "com.example.myactivity" android:windowSoftInputMode= "adjustResize" /> See the full details in the working with the soft keyboard guide. Alternatively, we could perform the resize directly at runtime within the onCreateView method of the fragment:
public course EditNameDialog extends DialogFragment { // ... @Override public View onCreateView ( LayoutInflater inflater , ViewGroup parent , Bundle packet ) { // Set to adjust screen elevation automatically, when soft keyboard appears on screen getDialog (). getWindow (). setSoftInputMode ( WindowManager . LayoutParams . SOFT_INPUT_ADJUST_RESIZE ); return inflater . inflate ( R . layout . fragment_edit_name , container ); } } See this stackoverflow mail service for additional details. Keep in mind that for either of these to work, the layout of the dialog must be configured to resize properly every bit the height changes.
Full-Screen Dialog
In other cases, nosotros want the dialog to fill the unabridged screen. Offset, in the XML layout for the dialog simply set the root layout to match_parent with:
<!-- fragment_edit_name.xml --> <LinearLayout xmlns:android= "http://schemas.android.com/apk/res/android" android:id= "@+id/edit_name" android:layout_width= "match_parent" android:layout_height= "match_parent" > <!-- ...subviews here... --> </LinearLayout> Next, within the onResume method of the DialogFragment we need to set the rules on the getDialog().getWindow() object to WindowManager.LayoutParams.MATCH_PARENT with:
@Override public void onResume () { // Get existing layout params for the window ViewGroup . LayoutParams params = getDialog (). getWindow (). getAttributes (); // Assign window properties to fill the parent params . width = WindowManager . LayoutParams . MATCH_PARENT ; params . summit = WindowManager . LayoutParams . MATCH_PARENT ; getDialog (). getWindow (). setAttributes (( android . view . WindowManager . LayoutParams ) params ); // Call super onResume after sizing super . onResume (); } With this code in a higher place, the dialog may however non appear to exist entirely full-screen until we configure the background color and padding inside res/values/styles.xml with the following:
<style name= "Dialog.FullScreen" parent= "Theme.AppCompat.Dialog" > <particular name= "android:padding" >0dp</item> <item proper noun= "android:windowBackground" >@android:color/white</particular> </manner> and so this style tin can be applied when creating the fragment with:
EditNameDialogFragment editNameDialogFragment = new EditNameDialogFragment (); editNameDialogFragment . setStyle ( DialogFragment . STYLE_NORMAL , R . style . Dialog_FullScreen ); editNameDialogFragment . bear witness ( getSupportFragmentManager (), "fragment_edit_name" ); Encounter this stackoverflow post for more details. Refer to this postal service for the customized dialog styles.
Specialized Dialog Types
When using the onCreateDialog method at that place are many built-in Dialog types to take advantage of:
- AlertDialog - Base of operations dialog that can display a message, an icon and ane-three buttons with customized text.
- ProgressDialog - Dialog showing a progress indicator and an optional text message
- TimePickerDialog - Dialog that allows a user to select a time.
- DatePickerDialog - Dialog that allows a user to select a date.
- BottomSheetDialog - Dialog that slides from the bottom.
- Other dialogs non worth discussing here: 1 ii
Displaying a ProgressDialog
When running a long running background job, i easy fashion to notify users the app is loading is to brandish a ProgressDialog.
A ProgressDialog can exist created someday with the following:
ProgressDialog pd = new ProgressDialog ( context ); pd . setTitle ( "Loading..." ); pd . setMessage ( "Delight await." ); pd . setCancelable ( imitation ); The dialog can be displayed with:
pd . show (); and hidden anytime with:
pd . dismiss (); ProgressDialog can be safely paired with an AsyncTask. Refer to this ProgressDialog tutorial for a code sample. The dialog progress animation can be customized by supplying your ain animation drawable using this tutorial.
Check out the CodePath android-view-helpers library for an easier way to create simple alarm and progress modals.
Displaying Date or Fourth dimension Picker Dialogs
The native date and time pickers for Android are another example of specialized dialog fragments. Delight note that the date/fourth dimension pickers that comes with the Android SDK differ depending on the Android device version. See this section for more information.
If you wish for the containing activity to receive the date or time selected past the dialog, you should ensure that the Activity implements the respective interface. If nosotros want the date picker to be shown from within another dialog fragment, refer to setting a target fragment. For instance, for a date picker fragment, you will want to ensure that the activity implements the OnDateSetListener interface:
import java.util.Calendar ; // do not import java.icu.utils.Calendar public class DatePickerFragment extends DialogFragment { @Override public Dialog onCreateDialog ( Bundle savedInstanceState ) { // Utilize the current time as the default values for the picker final Calendar c = Calendar . getInstance (); int twelvemonth = c . get ( Calendar . YEAR ); int month = c . get ( Agenda . Calendar month ); int twenty-four hours = c . become ( Calendar . DAY_OF_MONTH ); // Activeness needs to implement this interface DatePickerDialog . OnDateSetListener listener = ( DatePickerDialog . OnDateSetListener ) getActivity (); // Create a new example of TimePickerDialog and return information technology return new DatePickerDialog ( getActivity (), listener , year , month , day ); } The Activity, which likewise is responsible for instantiating this dialog fragment, but needs to implement the onDateSet method of this interface.
public grade MyActivity extends AppCompatActivity implements DatePickerDialog . OnDateSetListener { // attach to an onclick handler to evidence the date picker public void showDatePickerDialog ( View 5 ) { DatePickerFragment newFragment = new DatePickerFragment (); newFragment . show ( getSupportFragmentManager (), "datePicker" ); } // handle the engagement selected @Override public void onDateSet ( DatePicker view , int yr , int monthOfYear , int dayOfMonth ) { // store the values selected into a Calendar case final Agenda c = Calendar . getInstance (); c . gear up ( Calendar . YEAR , year ); c . set ( Calendar . MONTH , monthOfYear ); c . set ( Calendar . DAY_OF_MONTH , dayOfMonth ); } A similar approach can be washed with the time picker too:
public class TimePickerFragment extends DialogFragment { @Override public Dialog onCreateDialog ( Bundle savedInstanceState ) { // Use the current time equally the default values for the picker final Calendar c = Calendar . getInstance (); int hour = c . get ( Calendar . HOUR_OF_DAY ); int infinitesimal = c . become ( Calendar . Minute ); // Activity has to implement this interface TimePickerDialog . OnTimeSetListener listener = ( TimePickerDialog . OnTimeSetListener ) getActivity (); // Create a new example of TimePickerDialog and render it return new TimePickerDialog ( getActivity (), listener , 60 minutes , infinitesimal , DateFormat . is24HourFormat ( getActivity ())); } public void onTimeSet ( TimePicker view , int hourOfDay , int infinitesimal ) { // Do something with the time called by the user } } Modal Bottom Sheets
With the support design library, information technology as well fairly easy to convert your dialog to use modal bottom sheets. Instead of DialogFragment, y'all can extend from BottomSheetDialogFragment:
public form MyBottomSheetDialogFragment extends BottomSheetDialogFragment { @Override public View onCreateView ( LayoutInflater inflater , ViewGroup container , Bundle savedInstanceState ) { return inflater . inflate ( R . layout . fragment_bottom_sheet , container ); } } When you show this fragment, you lot will notice that it appears from the bottom:
MyBottomSheetDialogFragment myDialog = new MyBottomSheetDialogFragment (); FragmentManager fm = getSupportFragmentManager (); myDialog . bear witness ( fm , "test" ); Things To Annotation
- Notice that we are using the back up library version of fragments for meliorate compatibility in our code samples. The non-support version works identically.
- Dialogs are just classes that extend
DialogFragmentand define the view to display in the floating content area. -
DialogFragmentclasses must define an empty constructor as shown in the code samples, otherwise the Android system will raise an exception when it attempts to instantiate the fragment. - After loading the initial view, the action immediately shows the dialog using the show() method which allows the fragment manager to keep track of the state and gives us sure things for free such every bit the back button dismissing the fragment.
- In the lawmaking snippets to a higher place, notice the utilize of
requestFocusand input modes to control the advent of the soft keyboard when the dialog appears. - Nosotros can dismiss a dialog one of 2 ways. Here nosotros are calling
dismiss()within the Dialog grade itself. Information technology could also be chosen from the Action like theshow()method. In API 13,removeDialog(int id)anddismissDialog(int id)were deprecated.dismiss()directly on the dialog is at present the recommended approach every bit outlined here.
References
- http://android-developers.blogspot.com/2012/05/using-dialogfragments.html
- http://codebaum.wordpress.com/2013/04/10/dialog-fragments/
- http://developer.android.com/reference/android/app/DialogFragment.html
- http://www.coderzheaven.com/2013/02/fourteen/dialogfragments-android-unproblematic-instance/
- http://stackoverflow.com/questions/12912181/simplest-aye-no-dialog-fragment
Source: https://guides.codepath.com/android/using-dialogfragment
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