We Keep Coding

How to Create Custom Dilaog on Button Click

I am working on an application for my personal project.
I plan to have a table/chart in my application, and next to the application I plan to put a button which is what I need help with.
Could you please tell me what code I can use to create a button which when clicked:
Creates a new window(popup or not is fine) where there is a editText
for the users to input some text and when they are done the text is
inserted into a cell of the table?
Maybe useless information:
My application's "table" should be borderless and maybe instead of table is list with separators between the user's text
The application is essentially a to do list but when they click the button to insert a new task it is in a new window.

Create an AlertDialogBox
AlertDialog.Builder builder = new AlertDialog.Builder(getApplicationContext(), );
builder.setMessage("Message")
.setIcon(R.drawable.icon)
.setTitle("Title");
builder.setPositiveButton("OK", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
//Todo
}
});
builder.setNegativeButton("CANCEL", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
//Todo
}
});
AlertDialog alertDialog = builder.create();
alertDialog.show();

When you put a button in the XML code you need to fetch it by it's id in the activity (java class), then use
button.onClickListener( v -> {
//here you can have a code block that will be done once the button is clicked
//put Ashutosh Sagar code for the alert dialog
Keep in mind that you can make the dialog as you want by customizing it to your preferences. This usually requires another XML layout just for the look of the dialog and some more reading on Alert Dialog.
As it was said above by Aman, we can clearly post you the code but that way you won't learn anything. Happy coding.

how can i make small popup type thing appear on a button click that contains two sub-buttons which on clicking goes to their corresponding activities?

I want to open a small popup or something like that on a button click such that the popup contains two buttons which on clicking goes to their corresponding activities.
Please provide the code as i am totally new to android?

Yes you can do this with Dialogs
use Below Code to make dialog:
AlertDialog.Builder builder = new AlertDialog.Builder(this);
//Uncomment the below code to Set the message and title from the strings.xml file
//builder.setMessage(R.string.dialog_message) .setTitle(R.string.dialog_title);
//Setting message manually and performing action on button click
builder.setMessage("Do you want to close this application ?")
.setCancelable(false)
.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
finish();
}
})
.setNegativeButton("No", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
// Action for 'NO' Button
dialog.cancel();
}
});
//Creating dialog box
AlertDialog alert = builder.create();
//Setting the title manually
alert.setTitle("AlertDialogExample");
alert.show();
A dialog is a small window that prompts the user to make a decision or enter additional information. A dialog does not fill the screen and is normally used for modal events that require users to take an action before they can proceed.
find details of dialogs in below link:
Dialogs

You can use material alert dialog for this
Check this!

java Android - two dialogs, prevent first dialog from closing after second one exits

Initially in my app I am creating an AlertDialog which has three buttons, in which the middle button opens up another AlertDialog. The problem is that when the second AlertDialog closes after a button is pressed, the first one closes with it. I think both AlertDialogs get closed after I press a button on the second AlertDialog.
What I want is for the first AlertDialog to open another AlertDialog that has its own buttons, and when second AlertDialog presses a button, it only closes itself and goes back to the first one. Is there any way to achieve this?
Here is the code for the button used to open the AlertDialog:
final ImageButton fabgroup = (ImageButton) findViewById(R.id.groupButton);
Here's the code for a button that opens an AlertDialog that contains another button that opens another AlertDialog using the middle button (create button) on itself, but closes them both when a button on the second one is pressed (either the yes or no button, which is not what I want as I only want the second one to close itself and go back to the first AlertDialog, and yea this sounds pretty confusing in theory so I can try to clarify if needed):
fabgroup.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
final AlertDialog.Builder helpBuilder = new AlertDialog.Builder(CreateNote.this);
helpBuilder.setTitle("Select a group");
helpBuilder.setMessage("Add to group?");
final TextView input = new TextView(mainactiv.this);
input.setSingleLine();
input.setText("");
helpBuilder.setView(input);
helpBuilder.setNegativeButton("Yes",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
// Do nothing but close the dialog
Toast.makeText(CreateNote.this, "Page has been added to group", Toast.LENGTH_SHORT).show();
}
});
helpBuilder.setNeutralButton("Create", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
//open another alertbox
AlertDialog.Builder helpBuilder2 = new AlertDialog.Builder(CreateNote.this);
helpBuilder2.setTitle("Assign a new group");
helpBuilder2.setMessage("Create group?");
final EditText input = new EditText(CreateNote.this);
input.setSingleLine();
input.setText("");
helpBuilder2.setView(input);
helpBuilder2.setNegativeButton("Yes",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
// Create Group
Toast.makeText(CreateNote.this, "Group has been created", Toast.LENGTH_SHORT).show();
}
});
helpBuilder2.setPositiveButton("No", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
// Do nothing
}
});
// Remember, create doesn't show the dialog
AlertDialog helpDialog2 = helpBuilder2.create();
helpDialog2.show();
}
});
helpBuilder.setPositiveButton("No", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
// Do nothing
}
});
// Remember, create doesn't show the dialog
AlertDialog helpDialog = helpBuilder.create();
helpDialog.show();
}
});
Help would be greatly appreciated.

I eventually managed to solve this problem by creating two separate functions to generate each dialog box, and when one closes it calls the function to create the other one, kinda like recycling (or maybe closer to looping functions). Although, I'm not entirely sure how performance heavy this is, but it seems to do the job without any issues from what I'm testing. If anyone would like to chime in on how this could be an issue, then I'm open to hearing what others have to say about the negative points of using alert dialog boxes this way.

You can show an activity as dialog. Put this in your manifest file.
<activity android:theme="#android:style/Theme.Dialog" android:excludeFromRecents="true"/>
From this answer: Android Activity as a dialog

How do I make the AlertDialog box appear outside the app?

#Override
public void run() {
//Create thread that can alter the UI
AlarmPage.this.runOnUiThread(new Runnable() {
public void run() {
cal = Calendar.getInstance();
//See if current time matches set alarm time
if((cal.get(Calendar.HOUR_OF_DAY) == alarmTime.getCurrentHour())
&& (cal.get(Calendar.MINUTE) == alarmTime.getCurrentMinute())){
//If the sound is playing, stop it and rewind
if(sound.isPlaying()){
ShowDialog();
alarmTimer.cancel();
alarmTask.cancel();
alarmTask = new PlaySoundTask();
alarmTimer = new Timer();
alarmTimer.schedule(alarmTask, sound.getDuration(), sound.getDuration());
}
sound.start();
}
}
});
}
public void ShowDialog() {
final AlertDialog.Builder alertDialog = new AlertDialog.Builder(this);
alertDialog.setTitle("REMINDER!");
alertDialog.setMessage("Turn off alarm by pressing off");
alertDialog.setNegativeButton("Off", new DialogInterface.OnClickListener(){
#Override
public void onClick(DialogInterface dialog, int which) {
Toast.makeText(getApplicationContext(), "OFF", Toast.LENGTH_SHORT);
}
});
alertDialog.show();
}
I am making a simple alarm clock app that notifies the user. I want to make a alert box that gives the user the option to turn off the alarm when it goes off. I was able to make the alert box, but it only appears in the app not outside of the app. I understand the app has to be in the background running. If I need to show more code or be more specific, just ask please.

Add a line as:
public void ShowDialog() {
final AlertDialog.Builder alertDialog = new AlertDialog.Builder(this);
alertDialog.setTitle("REMINDER!");
alertDialog.setMessage("Turn off alarm by pressing off");
alertDialog.setNegativeButton("Off", new DialogInterface.OnClickListener(){
#Override
public void onClick(DialogInterface dialog, int which) {
Toast.makeText(getApplicationContext(), "OFF", Toast.LENGTH_SHORT).show();
}
});
alertDialog.show();
// line you have to add
alertDialog.getWindow().setType(WindowManager.LayoutParams.TYPE_TOAST);
}
check now.

Do not accept answers if they don't address your question, it is misleading.
The accepted answer is not correct, as it will never work outside your application.
Reason:
It requires an activity context not application context.
If you provide application context, your app will crash with IllegalArgumentException- you need to use Theme.AppCompat or their decendents...
If you need functionality as actually stated in the question you have to have a separate activity themed as a Dialog like here
or you can add a custom view to your window using window manager and making it system level alert like here.

Do this create an Activity without ContentView or a View associated with it and call your alertDialog method in your onCreate also remember to set the background of the Activity to Transparent using ColourDrawable
And that activity will look like a dialog or will suit your preference, you can also fall back to Themes so you can set an Activity as Dialog and treat it like Dialog also use DialogFragment

android service and "alert window"

I wish to use service in background of my application. When some special place is reached inside service I wish to stop it and display to user notification, which wont disapear until he or she clicks "OK" (some kind of alert window). When he or she clicks "OK" -> I wish some data reached in service be passed to my Activity.
Can I please for help. I have my service already running well, I wish to use Alert Dialog - but have no idea how to invoke it from service.

As the official documentation states, A background service should never launch an activity on its own in order to receive user interaction.
Instead you should fire a notification to the notification bar. The notification can be flagged insistent and vibrate until the user takes action, which is as strong as not dismissing a popup until the user clicks a button. Follow the link above for good (and official) tutorial on notifications
If you really want to launch an activity (and pop up a dialog) you must set the following flag to your intent first otherwise you'll get an exception.
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);

Once a certain point in your service is reached start an activity and dont use setContent view, but just use this in onCreate() to show a alert dialog.
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setMessage("ALERT")
.setCancelable(false)
.setPositiveButton("Ok", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
MyActivity.this.finish();
}
})
.setNegativeButton("No", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
dialog.cancel();
}
});
AlertDialog alert = builder.create();
When the user presses okay, the dialog will close with the activity.
EDIT:
For the data you want to send to the activity just put it in the bundle starting the Activity.
Intent intent = new Intent(this, SecondActivity.class);
Bundle b = new Bundle();
// see Bundle.putInt, etc.
// Bundle.putSerializable for full Objects (careful there)
b.putXXXXX("key", ITEM);
intent.putExtras(b);
startActivity(intent);
// -- later, in Activity
Bundle b = this.getIntent().getExtras();
int i = b.getInt("key");