android studio ethereum wallet loading message - android-studio

I am doing an app that creates an ethereum wallet and send some ether when you touch the button register, it takes about 1 minute to do this, while it happens I want to show a message saying: Creating a wallet, wait please.
When I show the message it won't create the wallet or it will create the wallet but it won't show the message.
PS: If someone knows how to down the time to do this, it will help me a lot.
Thanks

thanks for the help... and the negative.
I have solved it anyway, I leave my solution below:
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.ActivityMain);
errorMsg = new AlertDialog.Builder(this);
button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
new MyAsyncTasks().execute();
}
});
}
class MyAsyncTasks extends AsyncTask<Void, Void, String> {
// ProgressDialog dialog;
#Override
//It will show a message during your background
protected void onPreExecute() {
dialog = new ProgressDialog(mainActivity.this);
dialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);
dialog.setTitle("Add title");
dialog.setMessage("Add message");
dialog.setIndeterminate(true);
dialog.setCanceledOnTouchOutside(false);
dialog.show();
}
#Override
protected void onPostExecute() {
dialog.dismiss(); // Close the Dialog
//Show a window with error or operation succesfully
if(hash.equals("Error")){
displayError("Error", "Error");
dialog.cancel();
}
else{
displayConfirmation("Operation Succesfully");
dialog.cancel();
}
}
#Override
protected String doInBackground(Void... voids) {
dialog.show();
// your code to do you background activity
}
}

Related

Cannot create dialog inside a fragment

I am trying to create a dialog inside a fragment.when I am trying to press on the button and enter the dialog the app collaspe.
I guess the code is not right can you please help me with that?
Here is my code:
private void openDialog(){
Dialog dialog=new Dialog(getContext());
//AlertDialog.Builder builder=new AlertDialog.Builder(getContext());
LayoutInflater layoutInflater=this.getLayoutInflater();
View custom_dialog=getActivity().getLayoutInflater().inflate(R.layout.geo_dialog,null);
dialog.setContentView(custom_dialog);
// add_geofence_radius= custom_dialog.findViewById(R.id.radius_size);
save_btn=custom_dialog.findViewById(R.id.save_btn);
cancel_btn=custom_dialog.findViewById(R.id.cancel_btn);
/* save_btn.setOnClickListener(new View.OnClickListener() {
#Override
}
});
*/
/*cancel_btn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
dialog.cancel();
}
});
*/
// dialog.setTitle("hello");
dialog.show();
}
The best way to show dialog in android is to use "DialogFragments" since they are aware of the lifecycle of the view it is attached on (ie. fragments/activities).
Here is an examples provided in Android docs:
public class PurchaseConfirmationDialogFragment extends DialogFragment {
#NonNull
#Override
public Dialog onCreateDialog(#Nullable Bundle savedInstanceState) {
return new AlertDialog.Builder(requireContext())
.setMessage(getString(R.string.order_confirmation))
.setPositiveButton(getString(R.string.ok), (dialog, which) -> {} )
.create();
}
public static String TAG = "PurchaseConfirmationDialog";
}
To show the dialog use:
new PurchaseConfirmationDialogFragment().show(
getChildFragmentManager(), PurchaseConfirmationDialog.TAG);
For more reference on dialogFragments, checkout : Create a DialogFragment

Toast showing up twice in phyiscal device but only once in emulator / Android Java

I don't know if this is common or what. But I only have one Toast when it successfully deleted the data from Realtime Database
here's my code btw.
holder.btndel_stud.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
AlertDialog.Builder alert = new AlertDialog.Builder(context);
alert.setTitle("Delete Student Record");
alert.setMessage("Are you sure you want to delete");
alert.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
final DatabaseReference databaseReference = FirebaseDatabase.getInstance().getReference("Users");
final String uniqueKey = addingStudentsArrayList.get(position).getUniqueid();
databaseReference.addValueEventListener(new ValueEventListener() {
#Override
public void onDataChange(#NonNull DataSnapshot snapshot) {
databaseReference.child(uniqueKey).removeValue().addOnCompleteListener(new OnCompleteListener<Void>() {
#Override
public void onComplete(#NonNull Task<Void> task) {
if(task.isSuccessful()){
Toast.makeText(context, "Student Account/Record has been deleted..", Toast.LENGTH_SHORT).show();
}
else {
Toast.makeText(context, "Something went wrong...", Toast.LENGTH_SHORT).show();
}
}
});
}
#Override
public void onCancelled(#NonNull DatabaseError error) {
Toast.makeText(context, error.getMessage(), Toast.LENGTH_SHORT).show();
}
});
}
});
alert.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
Toast.makeText(context, "Cancelled", Toast.LENGTH_SHORT).show();
dialog.dismiss();
}
});
alert.show();
}
});
}
basically it toast twice on my mobile phone, even tho I called it only once. But yeah it toast once in my emulator. I genuinely don't know what's happening since there's no message indicating why it's toasting twice.
Toast.makeText(context, "Student Account/Record has been deleted..", Toast.LENGTH_SHORT).show();
The solutions I've tried:
Reinstall the app on my phone, clear cache and clear storage but no luck. Thank you!

In gmail app, calendar and contacts, can be opened separately. How we can open another app from main app

I was using gmail, I found that gmail app can access google calendar and contacts under google apps tag in navigation drawer. My point is, how we can access another app. I have made two separate apps and I want to give such link in my third app.
Friends,
Recently, on some google search I found that
private String packge_name = "com.android.calculator2";
private String class_name = "com.android.calculator2.Calculator";
private Button bt;
Then put the code
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
bt = (Button) findViewById(R.id.button1);
bt.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
launchCall();
}
});
}
protected void launchCall() {
// TODO Auto-generated method stub
Intent intent = new Intent();
intent.setAction(Intent.ACTION_MAIN);
intent.addCategory(Intent.CATEGORY_LAUNCHER);
intent.setComponent(new ComponentName(packge_name, class_name));
try {
startActivity(intent);
} catch (Exception e) {
// TODO: handle exception
e.printStackTrace();
}
}

How can i fix this type of problems in android studio?

I am getting the following error after creating new project
Error:Failed to resolve: com.android.support:design:23.+
Install Repository and sync project
Show in Project Structure dialog
Error:Failed to resolve: com.android.support:appcompat-v7:23.4.0
Install Repository and sync project
Show in Project Structure dialog
Here is the screenshot
I found some information about this problem. After that I searched for updates of the Android support repository and Google repository. I found an update for the Google repository and updated it. Now my all SDK and studio is updated.
How do I deal with this error now?
public class test1 extends AppCompatActivity {
private int conte = 100;
private String b;
String i="CONFIRM";
EditText vared;
int level=1;
private TextView end,leevel;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_test1);
getSupportActionBar().hide();
new Handler().postDelayed(new Runnable() {
#Override
public void run() {
Toast.makeText(test1.this,"زما شما به اتمام رسید !!!", Toast.LENGTH_LONG).show();
Intent i = new Intent(test1.this, test2.class);
startActivity(i);
finish();
}
},100000);
end=(TextView)findViewById(R.id.textView4);
new Thread(){
#Override
public void run() {
while (conte>=0){
runOnUiThread(new Runnable() {
#Override
public void run() {
end.setText(conte+"");
conte--;
}
});
try {
sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}.start();
leevel=(TextView)findViewById(R.id.textView8);
vared=(EditText)findViewById(R.id.vared) ;
Button b2 = (Button) findViewById(R.id.button2);
b2.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
String b = vared.getText().toString();
Toast.makeText(test1.this,"ذخیره شد حالا میتونی امتحان کنی !", Toast.LENGTH_LONG).show();
}
});
if( i==b) {
Button b1 = (Button) findViewById(R.id.button);
b1.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
level++;
leevel.setText(level + "");
}
});
}else {
Toast.makeText(test1.this,"اسم وارد شده صخیخ نمیباشد !", Toast.LENGTH_LONG).show();
}
}
}

How to send data in ListView dynamicaly in android.?

My question is how do i send data written in EditText of dialogue box by clicking button and display it on LIstView of Main Activity. ?
public class TaskDetailsActivity extends Activity implements OnClickListener{
String[] timepass= new String[100];
#Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.taskdetails);
//timepass[0] = "sidd";
/*ListView tasklist= (ListView)findViewById(R.id.listview);
ArrayAdapter<String> adapter = new ArrayAdapter<String>(getApplicationContext(), R.layout.insideaddtask, R.id.tp, timepass);
tasklist.setAdapter(adapter);*/
}
public void addnewtask(View view)
{
showDialog(1);
}
#Override
protected Dialog onCreateDialog(int id)
{
Dialog dialog=null;
switch (id)
{
case 1: dialog = new Dialog(TaskDetailsActivity.this);
dialog.setContentView(R.layout.addtask);
Button task_add_ok = (Button)findViewById(R.id.btn_ok);
task_add_ok.setOnClickListener(new OnClickListener()
{
#Override
public void onClick(View arg0)
{
EditText writetask = (EditText)findViewById(R.id.txt_writetask);
String data = writetask.getText().toString();
timepass[0] = data;
}
});
break;
default:
break;
}
return dialog;
}
#Override
public void onClick(View v)
{
// TODO Auto-generated method stub
}
}
you can use any adapter for this arrayadapter of type string...
and use the button's onclick method to populate the listview...
below link provides a good example...
http://android.amberfog.com/?p=296
www.androidhive.info/2011/10/android-listview-tutorial/

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