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Hello ,my app crashes every time I invoke Spinner which exists in a Fragment called "Firstfragment"

protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//This Spinner is not located in the MainActivity but in A fragment
Spinner s = (Spinner) findViewById(R.id.spinner33);
s.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
String msupplier=s.getSelectedItem().toString();
Log.e("Selected item : ", msupplier);
}
#Override
public void onNothingSelected(AdapterView<?> arg0) {
}
});
//Main MainActivity
<?xml version="1.0" encoding="utf-8"?>
<androidx.drawerlayout.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity"
android:id="#+id/drawer">
<include
layout="#layout/content_main"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<com.google.android.material.navigation.NavigationView
android:id="#+id/nav_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="start"
android:layout_marginTop="104dp"
app:headerLayout="#layout/nav_header"
app:menu="#menu/nav_menu" />
</androidx.drawerlayout.widget.DrawerLayout>
//first Fragment
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/Fragment1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#2196F3"
tools:context=".MainActivity">
<ImageView
android:id="#+id/imageView4"
android:layout_width="match_parent"
android:layout_height="773dp"
android:src="#mipmap/background"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<LinearLayout
android:id="#+id/linearLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/teal_700"
android:orientation="horizontal"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<Button
android:id="#+id/watBtn"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:clickable="true"
android:drawableTop="#drawable/ic_baseline_looks_one_24"
android:editable="true"
android:enabled="true"
android:focusable="auto"
android:gravity="center"
android:includeFontPadding="true"
android:linksClickable="true"
android:onClick="WattMthd"
android:text="#string/WAT"
app:backgroundTint="#android:color/holo_blue_dark"
tools:layout_editor_absoluteX="35dp"
tools:layout_editor_absoluteY="129dp" />
<Button
android:id="#+id/ampBtn"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:drawableTop="#drawable/ic_baseline_looks_two_24"
android:editable="true"
android:gravity="center"
android:onClick="ampMthd"
android:text="#string/AMP"
android:textColorLink="#FFFFFF"
app:backgroundTint="#android:color/darker_gray" />
<Button
android:id="#+id/voltBtn"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:drawableTop="#drawable/ic_baseline_looks_3_24"
android:editable="true"
android:gravity="center"
android:onClick="voltMthd"
android:text="فولت"
app:backgroundTint="#android:color/holo_blue_dark" />
<Button
android:id="#+id/kWbtn"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:drawableTop="#drawable/ic_baseline_looks_4_24"
android:editable="true"
android:gravity="center"
android:onClick="kWMthd"
android:text="كيلو"
app:backgroundTint="#android:color/holo_blue_dark" />
</LinearLayout>
<Spinner
android:id="#+id/spinner33"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#android:color/darker_gray"
android:dropDownWidth="match_parent"
android:entries="#array/SpinerConvertFrom"
android:foreground="#drawable/ic_baseline_arrow_drop_down_circle_24"
android:foregroundGravity="left|center"
android:gravity="center"
android:textAlignment="center"
android:visibility="visible"
app:flow_verticalAlign="center"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/linearLayout" />
<com.google.android.material.textfield.TextInputLayout
android:id="#+id/textInputLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/spinner33">
<com.google.android.material.textfield.TextInputEditText
android:id="#+id/Text1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="#string/AMP"
android:inputType="numberDecimal"
android:selectAllOnFocus="true"
android:textAlignment="center" />
</com.google.android.material.textfield.TextInputLayout>
<com.google.android.material.textfield.TextInputLayout
android:id="#+id/textInputLayout3"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/textInputLayout">
<com.google.android.material.textfield.TextInputEditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="#string/Volt"
android:inputType="numberDecimal"
android:selectAllOnFocus="true"
android:textAlignment="center" />
</com.google.android.material.textfield.TextInputLayout>
</androidx.constraintlayout.widget.ConstraintLayout>

If you are calling the spinner initialization from the fragment but it exists in the main activity it will crash, you need to call it in the activity, or move it to the xml of the framgnet.

activity_main belongs to MainActivity. So there is a fragment_first which belongs to FirstFragment. The spinner you are trying to initialize belongs to fragment_first, so you have to use it inside FirstFragment or move it (spinner) to activity_main

Hi bro inside you activity_main.xml you didn't define spinner, so you can't get view which you didn't create in your xml file, you can get it from your fragment, or you must move Spinner to activity_main.xml.

set.Visibility(View.GONE) not making the Button and EditText gone, and it's showing up like I didn't even add the code

Trying to make two login, one for admin, one for user. They share the same layout, but admin has additional TextFields and Buttons to add data to the menu. So when logging in with user credentials, the TextFields and Buttons will be setVisibility(View.GONE), but it's not working at all, in fact it's showing up like setVisibility(View.GONE) was added at all. Any advice would be appreciated.
loginpage.java
DatabaseHelper myDB;
EditText LoginEMail;
EditText LoginPassword;
Button LoginBtn;
LinearLayout linearLayout;
View add_image;
View add_name;
View add_desc;
View add_data;
#Override
protected void onCreate(#Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.loginpage);
LoginEMail = findViewById(R.id.LoginEMail);
LoginPassword = findViewById(R.id.LoginPassword);
LoginBtn = findViewById(R.id.LoginBtn);
myDB = new DatabaseHelper(this);
linearLayout = findViewById(R.id.linearLayout);
linearLayout = new LinearLayout(this);
add_image = new View(this);
add_name = new View(this);
add_desc = new View(this);
add_data = new View(this);
}
public void Login(View view) {
Intent intent = new Intent(loginpage.this, MenuSelection.class);
if (LoginEMail.getText().toString().equals("admin") && (LoginPassword.getText().toString().equals("admin"))) {
startActivity(intent);
linearLayout.setVisibility(View.VISIBLE);
}
else if(LoginEMail.getText().toString().equals("user") && (LoginPassword.getText().toString().equals("user"))) {
startActivity(intent);
linearLayout.setVisibility(View.GONE);
add_image.setVisibility(View.GONE);
add_name.setVisibility(View.GONE);
add_desc.setVisibility(View.GONE);
add_data.setVisibility(View.GONE);
}
else
Toast.makeText(loginpage.this, "Incorrect E-mail or Password.", Toast.LENGTH_SHORT).show();
}
loginpage.xml
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent">
<EditText
android:id="#+id/LoginEMail"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:ems="10"
android:hint="E-Mail"
android:inputType="textEmailAddress"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.504"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.204" />
<EditText
android:id="#+id/LoginPassword"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:ems="10"
android:hint="Password"
android:inputType="textPassword"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.495"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.338" />
<Button
android:id="#+id/LoginBtn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Log In"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.502"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.602"
android:onClick="Login"/>
</androidx.constraintlayout.widget.ConstraintLayout>
menu_selection.xml
<androidx.constraintlayout.widget.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center_horizontal"
android:orientation="vertical">
<ListView
android:id="#+id/menu_list"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<LinearLayout
android:id="#+id/linearLayout"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="1.0">
<ImageButton
android:id="#+id/add_image"
android:layout_width="50dp"
android:layout_height="50dp"
android:src="#color/black" />
<EditText
android:id="#+id/add_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:hint="Name" />
<EditText
android:id="#+id/add_desc"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:hint="Description" />
<Button
android:id="#+id/add_data"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Add" />
</LinearLayout>
</androidx.constraintlayout.widget.ConstraintLayout>

Instead of add_image = new View(this); you need to associate the variable add_image to the view in your XML layout using the findViewById(R.id.add_image) method. Similarly for the other 3 views that you have initialized this way.
You also need to delete the line linearLayout = new LinearLayout(this);. The previous line setting this variable is correct.

Constraint layout has space bottom and top

I'm building an app using Constraint layout, but it has extra space bottom and top. I can't find where they come from. I checked maybe ten times from top to bottom all code but there is no margin or padding or anything else for it.
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/relativeLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/black"
android:paddingLeft="0dp"
android:paddingTop="0dp"
android:paddingRight="0dp"
android:paddingBottom="0dp">
<androidx.constraintlayout.widget.ConstraintLayout
android:id="#+id/Brand"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_constraintBottom_toTopOf="#id/guideline"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:orientation="horizontal"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<TextView
android:id="#+id/brandname"
style="#style/viewParent.headerText"
android:text="Did"
android:textColor="#color/white" />
<TextView
android:id="#+id/brandname2"
style="#style/viewParent.headerText2"
android:layout_toRightOf="#id/brandname"
android:text="You"
android:textColor="#color/yellow" />
<TextView
style="#style/viewParent.headerText2"
android:layout_toRightOf="#id/brandname2"
android:text="Know!"
android:textColor="#color/red"
android:textStyle="bold|italic" />
</RelativeLayout>
</androidx.constraintlayout.widget.ConstraintLayout>
<androidx.constraintlayout.widget.ConstraintLayout
android:id="#+id/container_main"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_margin="4dp"
android:background="#drawable/card_bg"
android:paddingLeft="16dp"
android:paddingRight="16dp"
app:layout_constraintBottom_toTopOf="#id/guideline2"
app:layout_constraintEnd_toEndOf="#id/guidelineyazisag"
app:layout_constraintStart_toStartOf="#id/guidelineyazisol"
app:layout_constraintTop_toBottomOf="#id/guideline">
<TextView
android:id="#+id/activity_main_text_view_id"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="10dp"
android:text="simple Title Text"
android:textColor="#5E4C4C"
android:textStyle="bold"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="#+id/activity_main_did_u_know"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="10dp"
android:text="Category"
android:textColor="#5E4C4C"
android:textStyle="bold"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<androidx.core.widget.NestedScrollView
android:id="#+id/scrollview"
android:layout_width="match_parent"
android:layout_height="0dp"
android:fillViewport="true"
app:layout_constraintBottom_toTopOf="#id/activity_main_image_view"
app:layout_constraintTop_toBottomOf="#id/activity_main_did_u_know">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="0dp"
app:layout_constraintBottom_toTopOf="#id/activity_main_image_view"
app:layout_constraintTop_toBottomOf="#id/activity_main_did_u_know">
<TextView
android:id="#+id/factTextView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginTop="8dp"
android:gravity="center_vertical|center_horizontal"
android:lineSpacingExtra="8dp"
android:padding="10dp"
android:text="Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged."
android:textColor="#000000"
android:textSize="16dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="1.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.0" />
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.core.widget.NestedScrollView>
<ImageView
android:id="#+id/activity_main_image_view"
android:layout_width="30dp"
android:layout_height="40dp"
android:layout_marginStart="16dp"
android:layout_marginLeft="16dp"
android:clickable="true"
android:src="#drawable/ic_share_black_24dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#id/scrollview" />
<ImageView
android:id="#+id/activity_main_fav_button"
android:layout_width="30dp"
android:layout_height="40dp"
android:layout_margin="16dp"
android:clickable="true"
android:src="#drawable/ic_favorite_border_black_24dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toBottomOf="#id/scrollview" />
</androidx.constraintlayout.widget.ConstraintLayout>
<androidx.constraintlayout.widget.ConstraintLayout
android:id="#+id/LeftRight"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_constraintBottom_toTopOf="#id/adView"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/guideline2">
<ImageView
android:id="#+id/activity_main_left_button"
android:layout_width="60dp"
android:layout_height="60dp"
android:clickable="true"
android:src="#drawable/ic_previous"
android:elevation="3dp"
android:background="#drawable/okarka"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toStartOf="#id/guideline3"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<ImageView
android:id="#+id/activity_main_right_button"
android:layout_width="60dp"
android:layout_height="60dp"
android:clickable="true"
android:src="#drawable/ic_next"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
android:background="#drawable/okarka"
app:layout_constraintStart_toEndOf="#+id/guideline3"
app:layout_constraintTop_toTopOf="parent" />
<androidx.constraintlayout.widget.Guideline
android:id="#+id/guideline3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
app:layout_constraintGuide_percent="0.5" />
</androidx.constraintlayout.widget.ConstraintLayout>
<com.google.android.gms.ads.AdView xmlns:ads="http://schemas.android.com/apk/res-auto"
android:id="#+id/adView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
ads:adSize="SMART_BANNER"
ads:adUnitId="ca-app-pub-3940256099942544/6300978111"
ads:layout_constraintBottom_toBottomOf="parent"
ads:layout_constraintLeft_toLeftOf="parent"
ads:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="#id/LeftRight" />
<androidx.constraintlayout.widget.Guideline
android:id="#+id/guideline"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
app:layout_constraintGuide_percent="0.076" />
<androidx.constraintlayout.widget.Guideline
android:id="#+id/guideline2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
app:layout_constraintGuide_percent="0.7" />
<androidx.constraintlayout.widget.Guideline
android:id="#+id/guidelineyazisol"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
app:layout_constraintGuide_percent="0.07" />
<androidx.constraintlayout.widget.Guideline
android:id="#+id/guidelineyazisag"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
app:layout_constraintGuide_percent="0.93" />
</androidx.constraintlayout.widget.ConstraintLayout>
I tried adding guidelines to 0 points in the bottom but it also starts in that space. I gave -(minus) values to margin and padding but doesn't work. I don't know what else to do. You can see from screenshots how it looks.
public class MainActivity extends AppCompatActivity {
private ColorWheel colorWheel = new ColorWheel();
private TextView factTextView;
private TextView textViewId;
private TextView textViewTableName;
ImageView tableImageView;
AdView adView;
ImageView shareImageView;
ImageView favImageView;
float x1,x2,y1,y2;
int i = 1;
int adCounter = 0;
private ConstraintLayout constraintLayout;
String fact;
ArrayList<Fact> favList = new ArrayList<>();
private InterstitialAd mInterstitial;
AdRequest interAdRequest;
int favId;
String favTable;
Typeface typeface;
List<Fact> mData;
private DatabaseFacts db;
GradientDrawable shape;
#SuppressLint({"ClickableViewAccessibility", "SetTextI18n"})
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
db = new DatabaseFacts(this);
db.copyDbIfNotExists();
shape = new GradientDrawable();
shape.setCornerRadius(40);
mData = new ArrayList<>();
MobileAds.initialize(this, "ca-app-pub-2469721886989416~7390658870");
adView = findViewById(R.id.adView);
AdRequest bannerAdRequest = new AdRequest.Builder().build();
adView.loadAd(bannerAdRequest);
interAdRequest = new AdRequest.Builder().build();
mInterstitial = new InterstitialAd(this);
mInterstitial.setAdUnitId("ca-app-pub-2469721886989416/9441000894");
mInterstitial.loadAd(interAdRequest);
factTextView = findViewById(R.id.factTextView);
constraintLayout = (ConstraintLayout) findViewById(R.id.container_main);
textViewId = findViewById(R.id.activity_main_text_view_id);
favImageView = findViewById(R.id.activity_main_fav_button);
shareImageView = findViewById(R.id.activity_main_image_view);
textViewTableName = findViewById(R.id.activity_main_did_u_know);
// tableImageView = findViewById(R.id.img_user);
// if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O) {
// typeface = getResources().getFont(R.font.sourceserifproregular);
// }
factTextView.setTypeface(typeface);
Intent intent = getIntent();
final int choice = intent.getIntExtra("choice",0);
switch (choice) {
case 1:
textViewTableName.setText("General Facts");
factTextView.setText(db.getFact((readFromShared("defaultKey") - 1), DatabaseFacts.TABLE_GENERAL_NAME).getFact());
textViewId.setText("Fact " + (readFromShared("defaultKey") - 1) + " of " + db.getFactsCount(DatabaseFacts.TABLE_GENERAL_NAME));
if (db.getFact((readFromShared("defaultKey") - 1), DatabaseFacts.TABLE_GENERAL_NAME).isFavorite() == 0) {
favImageView.setImageResource(R.drawable.ic_favorite_border_black_24dp);
} else {
favImageView.setImageResource(R.drawable.ic_favorite_black_24dp);
}
ImageView leftClick = (ImageView) findViewById(R.id.activity_main_left_button);
leftClick.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
leftClickMethod("defaultKey", DatabaseFacts.TABLE_GENERAL_NAME);
}
});
ImageView rightClick = (ImageView) findViewById(R.id.activity_main_right_button);
rightClick.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
rightClickMethod("defaultKey",DatabaseFacts.TABLE_GENERAL_NAME);
return;
}
});
favImageView.setOnClickListener(v -> handleFavorites("defaultKey", DatabaseFacts.TABLE_GENERAL_NAME));
break;

Remove app:layout_constraintBottom_toTopOf="#id/guideline" from Brand and app:layout_constraintTop_toBottomOf="#id/LeftRight" from adView. You can't put constraints for Top and Bottom because it will center your View between those two constraints. Same about left and right (start, end), but you have match_parent here, so this problem doesn't occur (visualy - if you set wrap_content, view will go to the center too).

Radio button as tabs highlight when selected (Android Studio)

I am trying to create radio buttons that allows the users to select one of the three options. Once selected, the option should have a border, while the others do not.
Here is an image of what I am trying to create:
I'm not sure how to go about this. Any suggestions are greatly appreciated.

You could create a group of objects (which are the options) and programmatically ensure that only one of them can be selected.
selection could be presented as you wish it would be, I'd give a code example that imitates approximately the image you've attached. here's the structure:
XML file: CardViews with base of invisible FrameLayout (will be functioning as stroke), above the base is the cards' content
Java Class: setChecked(MaterialCardView selected) method that selects the chosen card (making it's 'stroke' visible) and checkedCard() that returns the selected card
so here's the code:
activity_main.xml:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/parentBackground"
tools:context=".MainActivity">
<com.google.android.material.card.MaterialCardView
android:id="#+id/public_card"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="10dp"
app:cardBackgroundColor="#color/cardBackground"
app:cardCornerRadius="5dp">
<FrameLayout
android:id="#+id/public_stroke"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/selectedCardStroke"
android:visibility="visible" />
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_margin="5dp"
android:background="#color/cardBackground">
<com.github.abdularis.civ.CircleImageView
android:id="#+id/card1Icon"
android:layout_width="70dp"
android:layout_height="70dp"
android:layout_centerVertical="true"
android:layout_margin="20dp"
android:src="#mipmap/ic_public" />
<TextView
android:id="#+id/card1Label"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_toEndOf="#id/card1Icon"
android:text="Public Profile"
android:textAllCaps="false"
android:textColor="#color/cardLabelColor"
android:textSize="35sp" />
<TextView
android:id="#+id/card1Text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#id/card1Label"
android:layout_alignStart="#id/card1Label"
android:text="Everyone can see your account. \nIncluding non followers."
android:textAllCaps="false"
android:textColor="#color/cardTextColor"
android:textSize="15sp" />
</RelativeLayout>
</com.google.android.material.card.MaterialCardView>
<com.google.android.material.card.MaterialCardView
android:id="#+id/friends_card"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#id/public_card"
android:layout_margin="10dp"
app:cardBackgroundColor="#color/cardBackground"
app:cardCornerRadius="5dp">
<FrameLayout
android:id="#+id/friends_stroke"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/selectedCardStroke"
android:visibility="invisible" />
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_margin="5dp"
android:background="#color/cardBackground">
<com.github.abdularis.civ.CircleImageView
android:id="#+id/card2Icon"
android:layout_width="70dp"
android:layout_height="70dp"
android:layout_centerVertical="true"
android:layout_margin="20dp"
android:src="#mipmap/ic_friends" />
<TextView
android:id="#+id/card2Label"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_toEndOf="#id/card2Icon"
android:text="Friends Only"
android:textAllCaps="false"
android:textColor="#color/cardLabelColor"
android:textSize="35sp" />
<TextView
android:id="#+id/card2Text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#id/card2Label"
android:layout_alignStart="#id/card2Label"
android:text="Connections nly. Only your friends \nand friends of friends can see your account."
android:textAllCaps="false"
android:textColor="#color/cardTextColor"
android:textSize="15sp" />
</RelativeLayout>
</com.google.android.material.card.MaterialCardView>
<com.google.android.material.card.MaterialCardView
android:id="#+id/private_card"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#id/friends_card"
android:layout_margin="10dp"
app:cardBackgroundColor="#color/cardBackground"
app:cardCornerRadius="5dp">
<FrameLayout
android:id="#+id/private_stroke"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/selectedCardStroke"
android:visibility="invisible" />
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_margin="5dp"
android:background="#color/cardBackground">
<com.github.abdularis.civ.CircleImageView
android:id="#+id/card3Icon"
android:layout_width="70dp"
android:layout_height="70dp"
android:layout_centerVertical="true"
android:layout_margin="20dp"
android:src="#mipmap/ic_private" />
<TextView
android:id="#+id/card3Label"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_toEndOf="#id/card3Icon"
android:text="Private"
android:textAllCaps="false"
android:textColor="#color/cardLabelColor"
android:textSize="35sp" />
<TextView
android:id="#+id/card3Text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#id/card3Label"
android:layout_alignStart="#id/card3Label"
android:text="Only you can see your account."
android:textAllCaps="false"
android:textColor="#color/cardTextColor"
android:textSize="15sp" />
</RelativeLayout>
</com.google.android.material.card.MaterialCardView>
</RelativeLayout>
MainActivity.java:
package com.example.myapplication;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.FrameLayout;
import android.widget.RelativeLayout;
import com.google.android.material.card.MaterialCardView;
import java.util.ArrayList;
public class MainActivity extends AppCompatActivity {
public MaterialCardView cPublic, cFriends, cPrivate;
public FrameLayout sPublic, sFriends, sPrivate;
public ArrayList<MaterialCardView> cards;
public ArrayList<FrameLayout> strokes;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
cards = new ArrayList<>();
strokes = new ArrayList<>();
cPublic = findViewById(R.id.public_card);
cFriends = findViewById(R.id.friends_card);
cPrivate = findViewById(R.id.private_card);
cards.add(cPublic);
cards.add(cFriends);
cards.add(cPrivate);
sPublic = findViewById(R.id.public_stroke);
sFriends = findViewById(R.id.friends_stroke);
sPrivate = findViewById(R.id.private_stroke);
strokes.add(sPublic);
strokes.add(sFriends);
strokes.add(sPrivate);
cPublic.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
setChecked(cPublic);
}
});
cFriends.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
setChecked(cFriends);
}
});
cPrivate.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
setChecked(cPrivate);
}
});
}
public void setChecked(MaterialCardView selected) {
int index = cards.indexOf(selected);
FrameLayout stroke = strokes.get(index);
stroke.setVisibility(View.VISIBLE);
for (FrameLayout s : strokes) {
if (!s.equals(stroke)) {
s.setVisibility(View.INVISIBLE);
}
}
}
public MaterialCardView checkedCard() {
int index = 0;
for (FrameLayout s : strokes) {
if (s.getVisibility() == View.VISIBLE) {
index = strokes.indexOf(s);
}
}
return cards.get(index);
}
}
Hope it could help you (:

Programatically set layout_width of EditText in Android

So I have an application that dynamically adds a table row every time the "Add Row" button is pressed. The code attached is the code that runs when "Add Row" is pressed. What I am trying to do is have 3 EditTexts next to each other on the same row. In order to do that, I need to change the Layout_Width of each EditText so the first EditText doesn't cut the other two off the screen. I can't seem to figure out a way to properly do this and was wondering if anyone would help me out. After I figure out how to do that, the next step is to adjust the layout_width according to the screen size but thats later down the road. It needs to be done programmatically because a user can theoretically have as many rows as they want to.
private OnClickListener btnListener = new OnClickListener()
{
public void onClick(View v)
{
tablerow = new TableRow(getActivity());
ed1 = new EditText(getActivity());
ed1.setInputType(InputType.TYPE_CLASS_TEXT);
ed2 = new EditText(getActivity());
ed2.setInputType(InputType.TYPE_NUMBER_FLAG_DECIMAL);
ed3 = new EditText(getActivity());
ed3.setInputType(InputType.TYPE_NUMBER_FLAG_DECIMAL);
tablerow.addView(ed1);
tablerow.addView(ed2);
tablerow.addView(ed3);
table1.addView(tablerow);
}
};

I believe what you are looking for is LayoutParams and its "weight" value.
Try:
TableRow.LayoutParams params = new TableRow.LayoutParams(LayoutParams.MATCH_PARENT,LayoutParams.WRAP_CONTENT,1.0f);
ed1 = new EditText(getActivity());
ed1.setInputType(InputType.TYPE_CLASS_TEXT);
ed1.setLayoutParams(params);
The third value (1.0f) in the LayoutParams constructor is a weight...all EditTexts in that TableRow should end up the same width.

You can try next approach, it is based on xml. You will be able to play around with layout at table_row.xml.
public class MainActivity extends ActionBarActivity implements View.OnClickListener {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
#Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.a_mn_button_add_row:
onClickButtonAddRow();
break;
}
}
private void onClickButtonAddRow() {
TableLayout tableLayout = (TableLayout) findViewById(R.id.a_mn_table);
tableLayout.addView(View.inflate(this, R.layout.table_row, null));
}
}
activity_main.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<Button
android:id="#+id/a_mn_button_add_row"
android:onClick="onClick"
android:text="Add row"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent">
<TableLayout
android:id="#+id/a_mn_table"
android:stretchColumns="0,1,2"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</ScrollView>
</LinearLayout>
table_row.xml
<?xml version="1.0" encoding="utf-8"?>
<TableRow xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:inputType="text" />
<EditText
android:inputType="text"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<EditText
android:inputType="text"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</TableRow>
table_row.xml for use case with 3-1-2 proportions.
<?xml version="1.0" encoding="utf-8"?>
<TableRow xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<EditText
android:layout_weight="3"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:inputType="text" />
<EditText
android:layout_weight="1"
android:inputType="text"
android:layout_width="0dp"
android:layout_height="wrap_content" />
<EditText
android:layout_weight="2"
android:inputType="text"
android:layout_width="0dp"
android:layout_height="wrap_content" />
</TableRow>