Posts by Murillo Comino • 1,133 points
58 posts
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answers78
viewsA: Print variable in java
Welcome to Stackoverflow, you just need to put the password variable in your Textview... to do so remove texto.setText(R.id.gerarsenha); and put texto.setText(senha); Would look like this: public…
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answer24
viewsA: How can I take the result of the imc to and put in another Textview??? I tried this way
Your if Else is always being true, you need to insert the variable imc to make the comparisons, the correct would be: public void btCalcularIMC(View v) { float altura, peso, imc; altura =…
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answer27
viewsA: Problem when trying to make a constant subtraction in Android Studio
You do not need to initialize the Textviews always in the action of the button, both them as hppaladino and hpquimera within onCreate. The way you’re doing every time you click the button hppaladin…
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answer53
viewsA: How do you pass an activity value to a fragment?
I will give you the method that is to pass as argument. There are other methods of communication through Listener or Viewmodel. Finally, create a new fragment already with the constructor…
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answer179
viewsA: Loop on an Object with an array variable
From what I understand, you are creating an array with only 1 object always. Place produtosList = new ArrayList<>(); before your second loop, this way you create a product list when you go…
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answer121
viewsA: Problem reading json in Android Studio
The problem is the type of connection you are making. According to documentation, from Android 9 (API 28 level), plain text compatibility is disabled by default. Solution 1: Try modifying the http…
androidanswered Murillo Comino 1,133 -
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answer48
viewsA: getWindow() command is not recognized
This problem may occur sometimes and as you are calling a method that is compatible with Appcompatactivity and is not going, the problem may be in the cache of android studio. What you can do is the…
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answer251
viewsA: webview inside Fragnent I want to open my site inside the webview, and the links inside the site should open outside
Following the way you implemented webview instead of: webView.setWebViewClient(new WebViewClient()); the right is to instantiate the class you created that extends Webviewclient, then it would be:…
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answer116
viewsA: anuncio admob no Fragment android studio
For admob to appear in the app, it first has to be posted in the play store for a few days. The main problem I identified is that you are using the same ID in the manifest as in the banner in…
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answer146
viewsA: Placing findViewById on the fragment
To call the webview within your fragment, before the webview has to be in the same fragment xml file. Inside the method onCreate do: @Override public View onCreateView(LayoutInflater inflater,…
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answer27
viewsA: How to change to property android:fontFamily="casual" in a textView dynamically?
It’s simple, do the following: Typeface tf = Typeface.create("casual", Typeface.NORMAL); text1.setTypeface(tf); where text1 is yours TextView, "casual" is the font you want. I hope I’ve helped.…
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answer55
viewsA: Dynamically pick up color
Or you can transform val cor = "R.color." + cores.get(position) in one piece. or ideally use the following method: getResources().getIdentifier("name", "resource", "package"); In your case I would…
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answer90
viewsA: Help me in a logic to solve my problem
There are probably better solutions than this, but this one addresses the problem. create a method to facilitate: private void setText(EditText editText, String value) { //recupera a string do…
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answer87
viewsQ: Check Internet status on API 29 (Anroid Q)
Good afternoon, I have the following method to check if the internet network is active at that time: public static boolean isNetworkAvaliable(Context ctx) { ConnectivityManager connectivityManager =…
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answer171
viewsA: How to change an image dynamically when a button is pressed and save the state of that image
You can use Sharedpreferences to save user information to do the following: First within your Activity declare: private SharedPreferences sharedPreferences; private boolean statusOff; public static…
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answer54
viewsA: Asynktask does not run doInBackGround
Hello, from what I understand you are wanting to debug inside theInBackground, so first add in theInBackground right at the beginning: if(android.os.Debug.isDebuggerConnected())…
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answer42
viewsA: Android - Sharedpreferences - App Update [Doubt]
Then she will be saved yes, but there may be some unknown error and she will not be saved. With me this never occurred on new Pis. You have to take into account the same package name, and also the…
androidanswered Murillo Comino 1,133 -
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answer64
viewsA: How to use Sharedpreferences from Android in this case?
The error I have identified is that you are initiating Bostone value as false, and this does not change throughout the cycle. So what you need to do is change the initialization of your Boolean…
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answers109
viewsA: How can I view BD (Mysql) images(url) in Android Studio
Use library to do this, make it easy. First add the library in build.Radle(app): implementation group: 'com.github.bumptech.glide', name: 'glide', version: '4.9.0' Inside your Adapter instead of…
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answer187
viewsA: How to open an Activity when you don’t have internet?
I made some changes and tested on an API 24, it worked well. First create an Asynctask extended class, as follows: public class CarregaPagina extends AsyncTask<String, Void, Boolean> {…
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answer368
viewsA: Update Listview with notifyDataSetChanged()
On your Adapter inside the Onclick leave the following: itemposicao.setDescricao(itemposicao.getDescricao()); itemposicao.setCategoria(itemposicao.getCategoria());…
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answer254
viewsA: Android app does not access API on the latest SDK(28) - Android Studio
Try to do the following, inside your Manifest in add application: android:usesCleartextTraffic="true" This allows all HTTP requests
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answers165
viewsA: Why authenticate your cell phone number via text in the register?
Hello, this issue can cause divergences in the answers, since there are those who think that sending sms to authenticate does not have security, others think it is safe. To recover the phone number…
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answers355
viewsA: Validate Edittext within Alertdialog
Hello, to treat a button click event in alertdialog, without it close, call the método setOnShowListener (new DialogInterface.OnShowLister); In this method you retrieve the Positive button to handle…
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answer626
viewsA: How to change the font and color of the navigation Drawer side menu
First, go to res/values/Styles and create the following themes For your Navigation items: <style name="NavigationItemAppearance"> <item name="android:textColor">#8BC34A</item>…
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answer57
viewsA: Admobs/ Adview - Advertisement at the bottom
Option 1 - Linear Layout: <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent"…
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answer355
viewsA: Run Html5 inside Webview android
Hello, you need to put the permission in the Manifest: <uses-permission android:name="android.permission.INTERNET" /> Still in Manifest, but inside application, add:…
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answer1551
viewsA: How to make monetary mask on Edit Text Android
Create the following class: public class MoneyTextWatcher implements TextWatcher { private final WeakReference<EditText> editTextWeakReference; private final Locale locale =…
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answer525
viewsA: Create a fullscreem and untitled splash
Add in the manifest where Splashscreen is the following theme: android:theme="@style/Theme.AppCompat.NoActionBar" will look like this: <activity android:name=".SplashActivity"…
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answer92
viewsA: How to delete an external library
This happens because some libraries depend on the "X or newer" version of the Android support libraries. A documented solution, to avoid conflicts is the following, put this at the end of the…
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answer427
viewsA: How to send data between Activitys without opening another window? Android Studio
Hello, in your Activity Criacateg, in the button that calls Activity Novacor, do the following: Intent intent = new Intent(getApplication(), NovaCor.class); //inicia a activity desejada, enquanto…
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answer320
viewsA: Destroy fragment on return
Hello, just clear the Backstack, leaving onBackPressed as follows: @Override public void onBackPressed() { DrawerLayout drawer = findViewById(R.id.drawer_layout); //retorna o drawer if…
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answers236
viewsA: Find out if Activity has been closed
I believe the simplest way to function, based on Life Cycle of Activity. is the following: Add the onResume method protected void onResume() { super.onResume(); //Aqui você pode recuperar os dados…
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answer389
viewsA: How to place a button with static position on the scrollview
I’ll leave 2 methods here The first using Layout with Linearlayout: <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"…
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answer206
viewsA: Know the color of Button Android Studio (Java)
by your example do the following: ColorDrawable buttonColor = (ColorDrawable) coreshexa.getBackground(); //recupera a cor do botão como inteiro int colorInt = buttonColor.getColor(); //transforma o…
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answer66
viewsA: Androidstudio - Swap url for image in local project path
Hello, the right is to leave project images in the drawable folder and change its nomenclature not to start with number: src/main/res/drawable You can call the images as follows: //adiciona suas…
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answer394
viewsA: Event onBackPressed
Hello, you can try the following: public void onBackPressed() { DrawerLayout drawer = findViewById(R.id.drawer_layout); //retorna o drawer if (drawer.isDrawerOpen(GravityCompat.START)) {…
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answer85
viewsA: I’m not able to take the Edittext value of the aux variable and compare in the if
Underneath your: for(int s = 0; s < nomesAuxiliares.size(); s++) { contador.add(s, 0); } Place a Watcher for your edittext vitoria.addTextChangedListener(new TextWatcher() { public void…
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answer125
viewsA: Numberformatexception: Invalid int: "1" I CAN’T CONVERT STRING TO INTEGER
Since it is a txt, it is probably receiving some "non-printable" character. Try the following: Integer.parseInt(dadosLinha[0].replaceAll("\\p{C}", "")); Thus will remove those characters that are…
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answer272
viewsA: Open a calendar in a Alertdialog and save the chosen date
Do the following in the fragment your editText creates a Listener for it and initializes the calendar as follows: seuEditText.setOnClickListener(new View.OnClickListener() { @Override public void…
androidanswered Murillo Comino 1,133 -
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answers169
viewsA: How to change attributes of all project Textviews at runtime?
Creates this class that will extend from Textview: public class NewTextView extends AppCompatTextView { private Context context; private String fontFamily; public NewTextView(Context context) {…
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answers160
viewsA: How to change the size of an Edittext contained in a Alertdialog?
Do the following: LayoutParams params = new LayoutParams(50,30); // Largura, Altura EditText editText = new EditText(getApplicationContext()); editText.setPadding (10,10,10,10); // esquerda, cima,…
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answer24
viewsA: Button in the Spinner reset Mainactivity in a Dialogfragment
A simple way that I ended up finding was to remove the resetFilters method in Filterdialogfragment and on the Mainactivity button to instantiate a new Dialogfragment.…
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answer24
viewsQ: Button in the Spinner reset Mainactivity in a Dialogfragment
I have two buttons in Mainactivity, the first opens a custom Dialogfragment with some spinners and the other button resets the spinner of this Dialogfragment. When I click the reset button it calls…
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answer73
viewsA: How to handle data entered into a fragment of a Tabbed Activity in Android Studio
Here is an example of the fragment class you can use: public class seuFragmento extends Fragment { private View view; private Activity activity; public void onAttach(Context context) {…
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answer418
viewsA: Change text color in a Listview (Android)
Do the following. Create in res/layout an Xml named after: simple_list cole: <TextView xmlns:android="http://schemas.android.com/apk/res/android" android:id="@android:id/text1"…
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answer71
viewsA: How to create a Fragment by clicking a button?
In your XML Main, you put your FrameLayout under the Button and within the LinearLayout. And instead of: tx.replace(R.id.formulario_main, new ListaBimestresFragment()); Place:…
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answer396
viewsA: Smarttablayout : How to use icons on tabs instead of text?
Try it this way: Create a class named after TintableImageView and leave like this: public class TintableImageView extends ImageView { private ColorStateList tint; public TintableImageView(Context…
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answer173
viewsA: Start application when unlocking screen - Android Studio -SOLVED
Try to use it like this: public class BootReceiver extends BroadcastReceiver{ @Override public void onReceive(Context context, Intent intent) { System.out.println(intent.getAction()); if…
androidanswered Murillo Comino 1,133 -
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answers182
viewsA: Generate random number in a user-given range - Java/Android
Good evening, you need to recover the values passed in Edittext instead of using: String minString = String.valueOf(minValue); String maxString = String.valueOf(maxValue); Let: String minString =…