I use this code to show the number and when pressing it to make a dial.It is working for android versions before Android Pie.
final Button but= findViewById(R.id.buttond);
but.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
String PhNumber = "6998474783";////example number
final CharSequence[] phones = PhNumber.split(" - ");
AlertDialog.Builder builder = new AlertDialog.Builder(CTX);
builder.setTitle("Επιλογή Τηλεφώνου");
builder.setItems(phones, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int item) {
// Do something with the selection
Intent intent = new Intent(Intent.ACTION_CALL, Uri.parse("tel:" + phones[item].toString()));
if (ActivityCompat.checkSelfPermission(getApplicationContext(), Manifest.permission.CALL_PHONE) != PackageManager.PERMISSION_GRANTED) {
return; }
startActivity(intent);
}
});
AlertDialog alert = builder.create();
alert.show();
}
});
What I have to change to work with Pie and above?
It shows the phone number but when I press it nothing happens
Solved using ACTION_DIAL without any checkSelfPermission.
Intent intent = new Intent(Intent.ACTION_DIAL, Uri.parse("tel:" + phones[item].toString()));
startActivity(intent);
If is there any other way, maybe with telecom-Manager please post it.
Related
I have a Xamarin.Forms application for iOS, Android, and now hopefully Mac. I made all the adjustments for the UI to look great on Mac. Submitted it for approval where it was rejected because the user can close the window while the app and menu bar is still running. So I figure I would just add a confirmation pop-up asking if they want to exit the app when they try to close the window.
OK = Terminate the App.
Cancel = Keep the window open.
I find lots of articles on how to handle this with a Xamarin.Mac app, but nothing on how to handle Xamarin.Forms on Mac. The FormsApplicationDelegate does not give access to the View Controller or the Window Delegate in order to override the WindowShouldClose method. I found that I can use NSAlert to do the pop-up which works great. Now I cannot find anything on what to do when the user responds. Open to suggestions.
private void Window_WillClose(object sender, System.EventArgs e)
{
NSNotification senderNotification = ((NSNotification)sender);
NSWindow closingWindow = (NSWindow)senderNotification.Object;
var confirmation = new NSAlert()
{
AlertStyle = NSAlertStyle.Warning,
InformativeText = "Are you sure you want to exit the App?",
MessageText = "Exit?"
};
confirmation.AddButton("OK");
confirmation.AddButton("Cancel");
var result = confirmation.RunModal();
if (result == 1001)
{
//Cancel closing the window
}
else
{
//terminate the app
}
}
After a lot of experimenting, I did find a solution. Here is what officially passed Apple's review. It requires that n menu action is linked as "New Window". It keeps tracks of the open windows and when there is only one left, it prompts to close the app. If the user closes all the windows and keeps the app running, they have the option to open a new window in the menu.
[Register("AppDelegate")]
public class AppDelegate : FormsApplicationDelegate
{
public NSWindow window;
private bool closeApp;
private List<NSWindow> openWindows;
public override NSWindow MainWindow
{
get { return window; }
}
public AppDelegate()
{
this.closeApp = false;
this.openWindows = new List<NSWindow>();
createNewWindow();
}
[Action("newWindow:")]
public void newWindow(NSObject sender)
{
createNewWindow();
this.window.MakeKeyAndOrderFront(sender);
LoadApplication(new App());
base.DidFinishLaunching(null);
}
private void createNewWindow()
{
var style = NSWindowStyle.Closable | NSWindowStyle.Resizable | NSWindowStyle.Titled;
var rect = new CoreGraphics.CGRect(200, 1000, 1024, 768);
window = new MainWindow(rect, style, NSBackingStore.Buffered, false);
window.Title = "MyApp"; // choose your own Title here
window.TitleVisibility = NSWindowTitleVisibility.Hidden;
window.WillClose += Window_WillClose;
openWindows.Add(window);
}
private void Window_WillClose(object sender, System.EventArgs e)
{
openWindows.Remove((NSWindow)((NSNotification)sender).Object);
if (openWindows.Count == 0)
{
var confirmation = new NSAlert()
{
AlertStyle = NSAlertStyle.Warning,
InformativeText = "Do you want to exit the app?",
MessageText = "Exit?"
};
confirmation.AddButton("Yes");
confirmation.AddButton("No");
var result = confirmation.RunModal();
if (result == 1001)
{
this.closeApp = false;
}
else
{
//terminate the app
this.closeApp = true;
}
}
}
public override bool ApplicationShouldTerminateAfterLastWindowClosed(NSApplication sender)
{
return closeApp;
}
public override void DidFinishLaunching(NSNotification notification)
{
Forms.Init();
LoadApplication(new App());
base.DidFinishLaunching(notification);
}
}
I use the following command to share a link, but with this command opens a box with apps for me to share. I want when I share it already go straight to facebook, without going through this box
void OnTapped4(object sender, EventArgs args)
{
CrossShare.Current.ShareLink(link, "teste", titulo);
}
Need to do direct shares to facebook, whatsapp, twitter and email
I have this command plus it works only on xamarin android, in xamarin forms it would no work
Intent sendIntent = new Intent();
sendIntent.SetAction(Intent.ActionSend);
sendIntent.PutExtra(Intent.ExtraText,"titulo");
sendIntent.SetType("text/plain");
sendIntent.SetPackage("com.facebook.orca");
StartActivity(sendIntent);
I found the following example where I did on android and it worked, now I want to do this in IOS how can I get it to go to whatsapp
Android
public class ShareService : IShareService
{
public void SharePageLink(string url)
{
var context = Forms.Context;
Activity activity = context as Activity;
Intent share = new Intent(Intent.ActionSend);
share.SetType("text/plain");
share.AddFlags(ActivityFlags.ClearWhenTaskReset);
share.PutExtra(Intent.ExtraSubject, "Brusselslife");
share.SetPackage("com.whatsapp");
share.PutExtra(Intent.ExtraText, url);
activity.StartActivity(Intent.CreateChooser(share, "Share link!"));
}
}
In IOS where to put this 'com.whatsapp'
public class ShareService : IShareService
{
public void SharePageLink(string url)
{
var window = UIApplication.SharedApplication.KeyWindow;
var rootViewController = window.RootViewController;
//SetPackage
var activityViewController = new UIActivityViewController(new NSString[] { new NSString(url) }, null);
activityViewController.ExcludedActivityTypes = new NSString[] {
UIActivityType.AirDrop,
UIActivityType.Print,
UIActivityType.Message,
UIActivityType.AssignToContact,
UIActivityType.SaveToCameraRoll,
UIActivityType.AddToReadingList,
UIActivityType.PostToFlickr,
UIActivityType.PostToVimeo,
UIActivityType.PostToTencentWeibo,
UIActivityType.PostToWeibo
};
rootViewController.PresentViewController(activityViewController, true, null);
}
}
I am using a custom button renderer for google sign In in xamarin forms page its working fine I get the signin resultin MainActivity Now i want to send this data from MainActivity and AppDelegate to the Particular page in Xamarin Forms.
protected override void OnActivityResult(int requestCode, Result resultCode, Intent data)
{
base.OnActivityResult(requestCode, resultCode, data);
if (requestCode == 9001)
{
Utilities.Configuration.UpdateConfigValue(Utilities.Constants.loggedInflag,string.Empty);
GoogleSignInResult result = Android.Gms.Auth.Api.Auth.GoogleSignInApi.GetSignInResultFromIntent(data);
if (result.IsSuccess)
{
GoogleSignInAccount acct = result.SignInAccount;
var token = acct.IdToken;
//I wan to send the 'accnt' to a Page in xamarin forms
}
else
{
//Signin Failure send response to Page in xamarin forms
}
}
}
Xamarin.Forms runs only in one Activity on Android. So if your url request comes out in a different Activity, you have to switch back to the MainActivity before you can use the normal XF navigation.
I do this when a user opens a file associated with my app.
[Activity(Label = "LaunchFileActivity")]
public class LaunchFileActivity : Activity
{
protected override void OnCreate(Bundle bundle)
{
base.OnCreate(bundle);
if (Intent.Data != null)
{
var uri = Intent.Data;
if (uri != null)
{
Intent i = new Intent(this, typeof(MainActivity));
i.AddFlags(ActivityFlags.ReorderToFront);
i.PutExtra("fileName", uri.Path);
this.StartActivity(i);
}
}
this.FinishActivity(0);
}
}
And in MainActivity:
protected override void OnNewIntent(Intent intent)
{
base.OnNewIntent(intent);
Intent = intent;
}
protected override void OnPostResume()
{
base.OnPostResume();
if (Intent.Extras != null)
{
string fileName = Intent.Extras.GetString("fileName");
if (!string.IsNullOrEmpty(fileName))
{
// do something with fileName
}
Intent.RemoveExtra("fileName");
}
}
Xamarin forms runs on one activity, which is most like your main activity.
There are two sample projects that show you how to communicate between native and form parts of the code, which can be found here
https://github.com/xamarin/xamarin-forms-samples/tree/master/Forms2Native
https://github.com/xamarin/xamarin-forms-samples/tree/master/Native2Forms
However, to answer your question, you would do something like the following
private const int MyRequestCode = 101;
//Start activity for result
var contactPickerIntent = new Intent(Intent.ActionPick, Android.Provider.ContactsContract.Contacts.ContentUri);
context.StartActivityForResult(contactPickerIntent, MyRequestCode);
and then in your main activity (the activity that initializes your xamarin forms application (using global::Xamarin.Forms.Forms.Init(this, bundle);)
protected override void OnActivityResult(int requestCode, Result resultCode, Intent data)
{
if (requestCode == MyRequestCode && resultCode == Result.Ok)
{
}
}
I want to implement a GUI element that works like a button that reacts different on right/left clicks and dragging.
Say this button is an object. Who is in charge to call the right method on mouseevents from the button and how is it designed in usual programming languages like e.g. AWT in Java?
I don't claim that this is 'the professional way' but this is how I do it.
With lazy initialization and anonymous classes.
private JButton btnSpecialbutton;
private JButton getBtnSpecialbutton() {
if (btnSpecialbutton == null) {
btnSpecialbutton = new JButton("SpecialButton");
btnSpecialbutton.addMouseMotionListener(new MouseMotionAdapter() {
#Override
public void mouseDragged(MouseEvent e) {
System.out.println("Dragged");
}
});
btnSpecialbutton.addMouseListener(new MouseAdapter() {
#Override
public void mouseClicked(MouseEvent e) {
if(e.getButton() == MouseEvent.BUTTON1)
{
System.out.println("Left Mouse Button");
}
else if(e.getButton() == MouseEvent.BUTTON3)
{
System.out.println("Right Mouse Button");
}
}
});
}
return btnSpecialbutton;
}
I have a listview that I want to update with information from a textfile (rollcall.txt). Each time rollcall.txt is updated I am calling rollcall() (code below). The data is updated correctly in the text file before rollcall() is called, I have checked. The problem I have is that the listview doesnt show the updated entry until the next time I call rollcall() (I.E it always appears to be one update step behind).
Where am I going wrong?
public void rollcall(){
String[] splitdata = null;
try{
File myFile = new File(Environment.getExternalStorageDirectory() + "/rollcall.txt");
FileInputStream fIn = new FileInputStream(myFile);
BufferedReader myReader = new BufferedReader(
new InputStreamReader(fIn));
String aDataRow = "";
String aBuffer = "";
while ((aDataRow = myReader.readLine()) != null) {
aBuffer += aDataRow + "\n";
}
splitdata = aBuffer.split("`"); //recover the file and split it based on `
myReader.close();
}
catch (Exception e) {
Toast.makeText(getBaseContext(), e.getMessage(),
Toast.LENGTH_SHORT).show();
}
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, R.layout.logbooklayout, splitdata);
lv1.setAdapter(adapter);
adapter.notifyDataSetChanged(); //called to ensure updated data is refreshed into listview without reload
EDIT: rollcall is called from this method:
public void onClick(View v) {
if (v==badd){
AlertDialog.Builder alert = new AlertDialog.Builder(this);
alert.setTitle("ROLLCALL"); //Set Alert dialog title here
alert.setMessage("Enter data: "); //Message here
// Set an EditText view to get user input
final EditText input = new EditText(this);
alert.setView(input);
alert.setPositiveButton("OK", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
//You will get as string input data in this variable.
// here we convert the input to a string and show in a toast.
add = input.getEditableText().toString();
try {
File myFile = new File(Environment.getExternalStorageDirectory() + "/rollcall.txt");
myFile.createNewFile();
FileOutputStream fOut = new FileOutputStream(myFile, true);
OutputStreamWriter myOutWriter = new OutputStreamWriter(fOut);
myOutWriter.append(add);
myOutWriter.append("`"); // ` used to split the file down later in lv section
myOutWriter.close();
fOut.close();
}
catch (Exception e) {
Toast.makeText(getBaseContext(), e.getMessage(),
Toast.LENGTH_SHORT).show();
}
} // End of onClick(DialogInterface dialog, int whichButton)
}); //End of alert.setPositiveButton
alert.setNegativeButton("CANCEL", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
// Canceled.
dialog.cancel();
}
}); //End of alert.setNegativeButton
AlertDialog alertDialog = alert.create();
alertDialog.show();
rollcall();
}//end badd
}
Thanks for the help, I am new to using arrayadapters.
Andy
Short answer to your question is everything in UI thread is asynchronous and unless you somehow manage to freeze/lock the whole application you can't make the rest of your UI wait for your alert to grab the input. So long before you press "OK" button in your alert, your rollcall() method is being called from your onClick() function and whatever is inside your .txt file is being read/displayed on your UI, right behind your alert dialog hanging on for you to press one of the buttons, asynchronously.
Maybe the fastest solution to what you want to achieve is to call your rollcall() function somewhere else, after you confirm that your adapter's feeding data has actually been changed. If you must call it from within onClick() function, without questioning your reasons to do so, you should call it inside the try{} block, right after you close the output stream.
Like this:
try {
File myFile = new File(Environment
.getExternalStorageDirectory() + "/rollcall.txt");
myFile.createNewFile();
FileOutputStream fOut = new FileOutputStream(myFile, true);
OutputStreamWriter myOutWriter = new OutputStreamWriter(
fOut);
myOutWriter.append(add);
myOutWriter.append("`"); // ` used to split the
// file down later
// in lv section
myOutWriter.close();
fOut.close();
rollcall();
}
The reason this "works" is you already declared the listener for your "OK" button and whenever you press it, whatever inside your EditText input will be written on file. In order to make it work as before I think you need superhuman skills to write some text on alert dialog and click on button before rollcall() function is called in the same scope.
Obviously the better way to do update the list view is to be able to use adapter.notifyDataSetChanged() but I believe you should call it somewhere else than where you write on your file and in that case your adapter must be declared outside the scope of rollcall() function.
Anyways in order to show how it all goes on I created a simple(rather ugly) android application and put some logs on where the mysterious stuff is happening:
public class MainActivity extends Activity {
private ListView lv1;
private Button refreshButton;
ArrayAdapter<String> adapter;
String[] splitdata;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
refreshButton = (Button) findViewById(R.id.refreshButton);
lv1 = (ListView) findViewById(R.id.someTextViewId);
refreshButton.setOnClickListener(myButtonhandler);
splitdata = null;
}
View.OnClickListener myButtonhandler = new View.OnClickListener() {
public void onClick(View v) {
Log.d("main", "la noliy");
someFunction();
}
};
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
public void someFunction() {
AlertDialog.Builder alert = new AlertDialog.Builder(this);
alert.setTitle("ROLLCALL"); // Set Alert dialog title here
alert.setMessage("Enter data: "); // Message here
// Set an EditText view to get user input
final EditText input = new EditText(this);
alert.setView(input);
alert.setPositiveButton("OK", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
// You will get as string input data in this
// variable.
// here we convert the input to a string and show in
// a toast.
String add = input.getEditableText().toString();
try {
File myFile = new File(Environment
.getExternalStorageDirectory() + "/rollcall.txt");
myFile.createNewFile();
FileOutputStream fOut = new FileOutputStream(myFile, true);
OutputStreamWriter myOutWriter = new OutputStreamWriter(
fOut);
myOutWriter.append(add);
myOutWriter.append("`"); // ` used to split the
// file down later
// in lv section
myOutWriter.close();
fOut.close();
if (splitdata.length > 0) {
rollcall(new String("call from inside"));
}
} catch (Exception e) {
Toast.makeText(getBaseContext(), e.getMessage(),
Toast.LENGTH_SHORT).show();
}
} // End of onClick(DialogInterface dialog, int
// whichButton)
}); // End of alert.setPositiveButton
alert.setNegativeButton("CANCEL",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
// Canceled.
dialog.cancel();
}
}); // End of alert.setNegativeButton
AlertDialog alertDialog = alert.create();
alertDialog.show();
Log.d("someFunction", "before rollcall");
Log.d("someFunction", "location: "
+ Environment.getExternalStorageDirectory().getAbsolutePath());
rollcall(new String("call from outside"));
Log.d("someFunction", "after rollcall");
}// end badd
public void rollcall(String message) {
Log.d("rollcall", message);
try {
File myFile = new File(Environment.getExternalStorageDirectory()
+ "/rollcall.txt");
FileInputStream fIn = new FileInputStream(myFile);
BufferedReader myReader = new BufferedReader(new InputStreamReader(
fIn));
String aDataRow = "";
String aBuffer = "";
while ((aDataRow = myReader.readLine()) != null) {
aBuffer += aDataRow + "\n";
}
splitdata = aBuffer.split("`"); // recover the file and split it
// based on `
myReader.close();
} catch (Exception e) {
Toast.makeText(getBaseContext(), e.getMessage(), Toast.LENGTH_SHORT)
.show();
}
int length = splitdata.length;
for (int i = 0; i < length; i++) {
Log.d("rollcall", splitdata[i]);
}
adapter = new ArrayAdapter<String>(this,
android.R.layout.simple_list_item_1, splitdata);
lv1.setAdapter(adapter);
}
}
I put a button and an onClickListener to it. The first time you press the button everything is called, listview is updated and your dialog is hanging on your screen for either of the buttons to be pressed:
And you will see a log like this:
07-26 04:09:20.802: D/someFunction(11273): before rollcall
07-26 04:09:20.802: D/someFunction(11273): location: /mnt/sdcard
07-26 04:09:20.802: D/rollcall(11273): call from outside
07-26 04:09:20.802: D/rollcall(11273): some data
07-26 04:09:20.802: D/rollcall(11273): some other data
07-26 04:09:20.812: D/someFunction(11273): after rollcall
You can see that rollcall() has been called from outside and not inside of your try/catch block since there is also another call from there to rollcall(). But when you press the button your try/catch block will do it's job inside your onClick() function and rollcall() will be called afterwards. Hence your listview wil be updated with new data you just entered in the dialog:
Here is the final part of log right after you press "OK" you can see that rollcall() is being called and it can read the new data:
07-26 04:09:46.347: D/rollcall(11273): call from inside
07-26 04:09:46.357: D/rollcall(11273): some data
07-26 04:09:46.357: D/rollcall(11273): some other data
07-26 04:09:46.357: D/rollcall(11273): new data
Finally, I'm sure there are a lot of ugliness in this whole approach to your problem. Bottom line is you need to know that everything happening in the UI thread is asynchronous and no one is waiting for you to enter data inside your dialog in that onClick() function. You should update your listview somewhere else with a more elegant approach in case your application throws an exception for example around that try/catch block. At least maybe you should add a finally{} block at the end of it and update your listview in there even though the try part fails. Hope this answered your question:)
PS. For those who want to try this at home, remember to provide a TextView id from your layout.xml file to the findViewById() function to get the ListView reference in your code, not an actual ListView id. Yeah, I know...
call adapter.notifyDataSetChanged() everytime you update your adapter, then listview will automatically be updated
I suggest you run rollcall as an asychronous task for 2 reasons. First, it will not stop your UI when rollcall() is running.
Second, you will be able to call onPostExecute(Object o) wher you can call `adapter.notifyDataSetChanged(); '