junior's questions

I already investigated in English I get this option android-room-persistence-library-upsert I modified it a bit and I stay like this:

    @Dao
    interface BloqueDao {
        @Query("SELECT * FROM bloque")
        suspend fun getAll(): List<bloque>

        @Query("UPDATE bloque SET act=1 WHERE idfin=:finc")
        suspend fun prevSetUp(finc : Int)

        @Insert( onConflict = OnConflictStrategy.IGNORE)
        suspend fun insertAll(vararg bloques: bloque?)

        @Update
        suspend fun update(vararg bloques: bloque?)

        @Delete
        suspend fun delete(blo: bloque)

        @Transaction
        suspend fun upsert(vararg bloques: bloque?) {
            val insertResult = insertAll(*bloques)
            if(insertResult is List<Long>){
                val updateList: MutableList<bloque?> = ArrayList()
                for (i in insertResult.indices)
                    if (insertResult[i] == -1L)
                        updateList.add(bloques[i])
                if (updateList.isNotEmpty())
                    update(*updateList.toTypedArray())
            }else if (insertResult == -1L)
                update(bloques[0])

        }
    }

the problem is that kotlin tells me Incompatible types: List<Long>and Unit. but the room library documentation says:

If the @Insert method receives only 1 parameter, it can return a long, which is the new rowId for the inserted element. If the parameter is an array or a collection, it should return long[] or List

I get this error before compiling it, if I tell it that the function insertAll returns AnyI get another error but in debugging

bug image

bug description

Cannot check for instance of erased type: List. Incompatible types: List and Unit.

SOLUTION

functions must be created separately

    @Dao
    interface BloqueDao {
        @Query("SELECT * FROM bloque")
        suspend fun getAll(): List<bloque>

        @Query("UPDATE bloque SET act=1 WHERE idfin=:finc")
        suspend fun prevSetUp(finc : Int)

        @Insert(onConflict = OnConflictStrategy.IGNORE)
        suspend fun insert(bloq: bloque) : Long

        @Insert(onConflict = OnConflictStrategy.IGNORE)
        suspend fun insertAll(bloques: List<bloque>) : List<Long>
        @Update
        suspend fun update(vararg bloques: bloque)

        @Delete
        suspend fun delete(blo: bloque)

        @Transaction
        suspend fun upsert(bloq: bloque) = insert(bloq).takeIf { it == -1L }.run { update(bloq) }

        @Transaction
        suspend fun upsert(bloques: List<bloque>) = insertAll(bloques)
        .withIndex()
        .filter { it.value == -1L }
        .map { bloques[it.index] }
        .let { if (it.isNotEmpty()) update(*it.toTypedArray()) }
    }

What I have tried is this way:

val arrlay: Array<@LayoutRes Int> =[R.layout.tab_basales,R.layout.tab_pcs,R.layout.tab_portadores]

but it gives me the following error

Unsupported [Collection literals outside of annotations]
This annotation is not applicable to target 'type usage'

I have implemented the entire structure of an MVVM architecture with jetpack but I don't know how to observe each position of an array, to observe a property it is only done like this:

var normales=""
    @Bindable get
    set(v){
        field=v
        notifyPropertyChanged(BR.normales)
    }

With an array of type map<String, String> I would need the index because it would not be convenient to go through the entire array to know which change, to observe the change I have it like this:

inner class ArrayWrapper(vararg pairs: Pair<String, String>) :LinkedHashMap<String, String>(pairs.size) {
    override fun put(key: String, value: String): String {
        notifyPropertyChanged(BR.calibre)
        return super.put(key,value)!!
    }
}

var calibre= ArrayWrapper("C2" to "", "C3" to "", "C4" to "", "C5" to "", "C6+" to "")
    @Bindable get

This works very well but currently I have the observer like this:

viewModel.addOnPropertyChangedCallback(object: Observable.OnPropertyChangedCallback(){
        override fun onPropertyChanged(sender: Observable?, propertyId: Int) {
            when(propertyId){
                BR.calibre-> Log.i("cambio calibres","asi "+ viewModel.calibre.toString())
                else-> Log.i("hola","notificaron")
            }
        }
    })

and the output gives me:

I/cambio calibres: asi {C2=56, C3=4, C4=, C5=, C6+=}
I/cambio calibres: asi {C2=56, C3=4, C4=, C5=5, C6+=}

So how can I know which index changed?

I have implemented one ViewModelbut I need to change the values ​​of some properties based on their name, more exactly add one

FormViewModel

class FormViewModel : ViewModel(), Observable {
    ...
    var c2=""
        @Bindable get
        set(v){
            field=v
            notifyPropertyChanged(BR.c2)
        }
    var c3=""
        @Bindable get
        set(v){
            field=v
            notifyPropertyChanged(BR.c3)
        }
    var c4=""
        @Bindable get
        set(v){
            field=v
            notifyPropertyChanged(BR.c4)
        }
    var c5=""
        @Bindable get
        set(v){
            field=v
            notifyPropertyChanged(BR.c5)
        }
    var c6=""
        @Bindable get
        set(v){
            field=v
            notifyPropertyChanged(BR.c6)
        }
    ...
    fun onMore(num:Int){
        this["c"+num]=this["c"+num].toInt()+1//esto no sirve pero es lo que quiero
    }
}

How could I do this? I have read something about class delegation but I don't know how to implement it in aViewModel

Reason

I have two buttons for each of the fields and I just want to assign a click function to all of them

they must add or subtract 1 according to the button they press

capture_fragment

        <androidx.constraintlayout.widget.ConstraintLayout
            android:id="@+id/contpor"
            android:layout_width="match_parent"
            android:layout_height="0dp"
            android:contentDescription="Portadores"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintTop_toBottomOf="@id/contpdc">

            <androidx.constraintlayout.widget.ConstraintLayout
                android:id="@+id/textC2"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                app:layout_constraintLeft_toLeftOf="parent"
                app:layout_constraintRight_toLeftOf="@id/textC3"
                app:layout_constraintTop_toTopOf="@id/textC3"
                app:layout_constraintWidth_percent="0.3">
                <TextView
                    android:id="@+id/labc2"
                    android:layout_width="0dp"
                    android:layout_height="wrap_content"
                    android:text="@{@string/c(`2`)}"
                    android:labelFor="@id/editc2"
                    app:layout_constraintTop_toTopOf="parent"
                    app:layout_constraintLeft_toLeftOf="parent"/>
                <EditText
                    android:id="@+id/editc2"
                    android:layout_width="0dp"
                    android:layout_height="wrap_content"
                    android:inputType="number"
                    android:selectAllOnFocus="true"
                    android:text="@={modelo.c2}"
                    android:background="#eee"
                    android:textAlignment="center"
                    android:textSize="30sp"
                    app:layout_constraintTop_toBottomOf="@id/labc2"
                    app:layout_constraintLeft_toLeftOf="parent"
                    app:layout_constraintRight_toLeftOf="@id/morec2" />

                <androidx.appcompat.widget.AppCompatImageButton
                    android:id="@+id/morec2"
                    android:layout_width="wrap_content"
                    android:layout_height="0dp"
                    android:background="#00E676"
                    android:src="@drawable/ic_more"
                    android:paddingHorizontal="8dp"
                    android:onClick="@{()->modelo.onMore()}"
                    app:layout_constraintLeft_toRightOf="@id/editc2"
                    app:layout_constraintRight_toRightOf="parent"
                    app:layout_constraintBottom_toTopOf="@id/lessc2"
                    app:layout_constraintTop_toTopOf="parent" />
                <androidx.appcompat.widget.AppCompatImageButton
                    android:id="@+id/lessc2"
                    android:layout_width="wrap_content"
                    android:layout_height="0dp"
                    android:src="@drawable/ic_less"
                    android:background="#FF6E40"
                    android:paddingHorizontal="8dp"
                    app:layout_constraintLeft_toRightOf="@id/editc2"
                    app:layout_constraintRight_toRightOf="parent"
                    app:layout_constraintTop_toBottomOf="@id/morec2"
                    app:layout_constraintBottom_toBottomOf="parent"/>
            </androidx.constraintlayout.widget.ConstraintLayout>

            <androidx.constraintlayout.widget.ConstraintLayout
                android:id="@+id/textC3"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                app:layout_constraintBottom_toTopOf="@id/textC5"
                app:layout_constraintLeft_toRightOf="@id/textC2"
                app:layout_constraintRight_toLeftOf="@id/textC4"
                app:layout_constraintTop_toTopOf="parent"
                app:layout_constraintWidth_percent="0.3">
                <TextView
                    android:id="@+id/labc3"
                    android:layout_width="0dp"
                    android:layout_height="wrap_content"
                    android:text="@{@string/c(`3`)}"
                    android:labelFor="@id/editc3"
                    app:layout_constraintTop_toTopOf="parent"
                    app:layout_constraintLeft_toLeftOf="parent"/>
                <EditText
                    android:id="@+id/editc3"
                    android:layout_width="0dp"
                    android:layout_height="wrap_content"
                    android:inputType="number"
                    android:selectAllOnFocus="true"
                    android:text="@={modelo.c3}"
                    android:background="#eee"
                    android:textAlignment="center"
                    android:textSize="30sp"
                    app:layout_constraintTop_toBottomOf="@id/labc3"
                    app:layout_constraintLeft_toLeftOf="parent"
                    app:layout_constraintRight_toLeftOf="@id/morec3" />

                <androidx.appcompat.widget.AppCompatImageButton
                    android:id="@+id/morec3"
                    android:layout_width="wrap_content"
                    android:layout_height="0dp"
                    android:background="#00E676"
                    android:src="@drawable/ic_more"
                    android:paddingHorizontal="8dp"
                    app:layout_constraintLeft_toRightOf="@id/editc3"
                    app:layout_constraintRight_toRightOf="parent"
                    app:layout_constraintBottom_toTopOf="@id/lessc3"
                    app:layout_constraintTop_toTopOf="parent" />
                <androidx.appcompat.widget.AppCompatImageButton
                    android:id="@+id/lessc3"
                    android:layout_width="wrap_content"
                    android:layout_height="0dp"
                    android:src="@drawable/ic_less"
                    android:background="#FF6E40"
                    android:paddingHorizontal="8dp"
                    app:layout_constraintLeft_toRightOf="@id/editc3"
                    app:layout_constraintRight_toRightOf="parent"
                    app:layout_constraintTop_toBottomOf="@id/morec3"
                    app:layout_constraintBottom_toBottomOf="parent"/>
            </androidx.constraintlayout.widget.ConstraintLayout>
       ...
       </androidx.constraintlayout.widget.ConstraintLayout>

If you have a better way to do this design, I would really appreciate if you tell me which one.

Hello, I am creating a drawable with canvasKotlin but I would like to reduce the code and I have many paints:

        val lado=440 // preferiblemente un multiplo de 8
        val ladmit=lado/2f
        val textmed=(ladmit*resources.displayMetrics.density/4)+6
        val bitmap: Bitmap = Bitmap.createBitmap(lado, lado, Bitmap.Config.ARGB_8888)
        bitmap.density=resources.displayMetrics.densityDpi
        bitmap.eraseColor(Color.argb(0,0,0,0))
        val canva = Canvas(bitmap)
        canva.drawColor(Color.argb(0, 0, 0, 0));
        val pback :Paint= Paint().apply {
            isAntiAlias = true
            style = Paint.Style.FILL
            color = Color.WHITE
            setShadowLayer(10f, -5f, -5f, Color.GRAY)
        }
        val pcol :Paint= Paint().apply {
            isAntiAlias = true
            style = Paint.Style.FILL
            color= "FFCC80".toInt(16) - 0xffffff
        }
        val pbord = Paint().apply {
            isAntiAlias = true
            style = Paint.Style.STROKE
            color = Color.BLACK
            strokeWidth=4f
        }
        val p = Paint().apply{
            color=Color.BLACK
            textSize=textmed
            textAlign=Paint.Align.CENTER
        }
        RectF(10f, 10f, lado-10f, lado-10f).let {
            canva.drawRoundRect(it, 25f, 25f, pback)
            canva.drawRoundRect(RectF(10f, 10f, lado-10f, ladmit), 25f, 25f, pcol)
            canva.drawRoundRect(it, 25f, 25f, pbord)
        }
        RectF(10f, ladmit/2+10f, lado/2f, lado/2f).let {
            pcol.color= Color.WHITE
            canva.drawRoundRect(it, 0f, 0f, pcol)
            canva.drawRoundRect(it, 0f, 0f, pbord)
        }
        RectF(ladmit, ladmit/2+10f, lado-10f, ladmit).let {
            pcol.color= "80CBC4".toInt(16) - 0xffffff
            canva.drawRoundRect(it, 0f, 0f, pcol)
            canva.drawRoundRect(it, 0f, 0f, pbord)
        }
        p.typeface = Typeface.create(Typeface.DEFAULT, Typeface.BOLD)
        canva.drawText((Math.random() * 50).toInt().toString(), ladmit, lado*0.75f+p.textSize/(2*resources.displayMetrics.density), p)
        p.textSize= (textmed*0.6).toFloat()
        canva.drawText("001", ladmit/2, (ladmit-10f)*0.75f+p.textSize/2, p)
        canva.drawText("IZQ", ladmit, (ladmit-10f)/4+p.textSize/2, p)
        canva.drawText("01", lado*0.75f, (ladmit-10f)*0.75f+p.textSize/2, p)
        val draw:Drawable =bitmap.toDrawable(resources)
        binding.imageView.setImageDrawable(draw)

this is the result

I would also like 44 to be the only text with bold, try also{}but it changes the attribute of the instance

canva.drawText(..., p.also {
            it.typeface = Typeface.create(Typeface.DEFAULT, Typeface.BOLD)
        })

Could someone tell me how I can clone this instance of paint

I am reviewing the bit offset in java but it seems very curious to me that bit 32 gives me a negative. I assume that it is due to the INT(32bits) data type and that it has a limit of bytes, but it would help me a lot if someone clarified it for me. .

For example:

here it moved 30 times, that is, it stayed in bit 31

System.out.println(0B1 << 30);// es 1073741824 en base 10

here I scroll 31 times I stay in bit 32

System.out.println(0B1 << 31);// es -2147483648 en base 10

here it moved 32 times, it stayed in bit 33, that is, it went to byte 5

System.out.println(0B1 << 32);// es 1 en base 10

I know that the function delay()allows to delay all the events but I only need it to delay the first 2, for example try this:

https://stackblitz.com/edit/k4xb43?file=index.ts

const clicks = fromEvent(document, "click");
const delayedClicks = clicks.pipe(
  take(2),
  delay(500)
); // each click emitted after 1 second
delayedClicks.subscribe(x => console.log(x));

it delays the execution but then I block all the events, how could I delay it only in the first 2 executions?

my target is a bit bigger but for now i just want to execute a function before the child routes are loaded, i have this:

features.module.ts

export function initializeApp(appInitService: AppInitService) {// esta funcion es la que quiero ejecutar
  return (): Promise<any> => {
    console.log("este si lo esta llamando");
    return appInitService.Init();
  }
}
const routes: Routes = [...];

@NgModule({
  declarations: [...],
  imports: [...,
    RouterModule.forChild(routes)// aquí cargo mis routers child
  ],
  schemas:[NO_ERRORS_SCHEMA],
  providers: [
    {
      provide: APP_INITIALIZER,// este es el tipo de provider
      useFactory: initializeApp,// aquí esta la promesa que quiero ejecutar
      multi: true,
      deps: [AppInitService]
    }
  ]
})
export class FeaturesModule { }

Here I have the function that will be executed when the module is called, and app.module.tsthat calls me FeaturesModuleby lazy loading:

app.module.ts

const routes: Routes = [
    {
      path: '', component: HomeComponent, canActivate: [AuthGuard],
      loadChildren: () =>   import('./features/features.module').then(m => m.FeaturesModule)
    },
    {
      path: 'login',
      component: LoginComponent
    }
  ];

@NgModule({
  declarations: [
    AppComponent,
    HomeComponent,
    LoginComponent
  ],
  imports: [...,
    RouterModule.forRoot(routes)
  ],
  schemas:[NO_ERRORS_SCHEMA],
  bootstrap: [AppComponent]
})
export class AppModule { }

but it is not working for me, it should tell me "this is calling it" in the browser console, I am guided by this answer stackoverflow.com

I wanted to delete the routing files and import them directly into the modules but it only worked for forRoot()me forChild()overwriting the routes forRoot()could someone tell me why or how I could do it

features.module.ts

const routes: Routes = [
  {
    path: '',
    component:ManualComponent,
    data:{"permi":"todo"}
  },
  {
    path: 'menu',
    component:MenuComponent
  },
  {
    path: 'settings',
    component:SettingsComponent
  }
];

@NgModule({
  declarations: ...,
  imports: [
    CommonModule,
    ReactiveFormsModule,
    FormsModule,
    SharedModule,
    MDBBootstrapModule.forRoot(),
    RouterModule.forChild(routes) // esta linea me esta sobrescribiendo las rutas
  ]
})
export class FeaturesModule { }

app.module.ts

const routes: Routes = [
  {
    path: '', component: HomeComponent, canActivate: [AuthGuard],
    //loadChildren: () =>   import('./features/features.module').then(m => m.FeaturesModule)
  },
  {
    path: 'login',
    component: LoginComponent
  }
];

@NgModule({
  declarations: [
    AppComponent,
    HomeComponent,
    LoginComponent
  ],
  imports: [
    ReactiveFormsModule,
    FormsModule,
    BrowserModule,
    RouterModule.forRoot(routes),// importo los routes
    CoreModule,
    FeaturesModule,// importo el modulo de feactures
    SharedModule
  ],
  bootstrap: [AppComponent]
})
export class AppModule { }

comment out the loadChildrenin app.module.ts to see if this was the problem, but it's not

I am trying to detect changes in the url but I am not succeeding, so far I have this:

homeComponent.ts

constructor(private router: Router,private activatedRoute: ActivatedRoute){}

ngOnInit() {
   this.activatedRoute.url.subscribe(url => console.log('The URL changed to: ' + url));
   this.activatedRoute.queryParams.subscribe(params => console.log('The URL changed to: ' + params["name"]));

   this.activatedRoute.paramMap.subscribe((params: ParamMap) => { console.log(params) });
}

homeComponent.html

<app-navbarcust (logout)="logout()"></app-navbarcust>
<div class="container mt-5" [ngClass]='{"pt-5":true}'>
    <router-outlet></router-outlet>
</div>

he <app-navbarcust>is the component of the navigation there are the routerLink they serve well, this I get in the console:

I already changed the route several times and I don't get the reactions, could someone please tell me what I'm doing wrong, another question I'm not unsubscribing in the ondestroy, is this wrong?

I'm reading the kotlin tutorial in codelads and this question came up, because in the codelabs they show us examples but not one of this type, so what I want is something like this:

var dirtyLevel = 20
val waterFilter: (Int) -> Int = { dirty -> dirty / 2}// funcion lambda
val updateDirty: Int = { dirty : Int, operation : (Int) -> Int -> operation(dirty)}// funcion lambda de orden superior
println(waterFilter(dirtyLevel))
println(updateDirty(30,waterFilter))

generates this error:

error: type mismatch: inferred type is (Int, (Int) -> Int) -> Int but Int was expected
val updateDirty: Int = { dirty : Int, operation : (Int) -> Int -> operation(dirty)}
                       ^

I also tried it like val updateDirty: Int = { (dirty : Int, operation : (Int) -> Int) -> operation(dirty)}this but it generates this error:

error: type mismatch: inferred type is (???) -> [ERROR : <ERROR FUNCTION RETURN TYPE>] but Int was expected
val updateDirty: Int = { (dirty : Int, operation : (Int) -> Int) -> operation(dirty)}

I am trying to make a custom menuitem but trying to get a property from the custom class gives mejava.lang.NullPointerException

this is my code:

activity_main.xml

<android.support.design.widget.NavigationView
     android:id="@+id/nav_view"
     android:layout_width="wrap_content"
     android:layout_height="match_parent"
     android:layout_gravity="start"
     android:fitsSystemWindows="true"
     app:headerLayout="@layout/nav_header_main"
     app:menu="@menu/main.xml" />

main.xml

<menu>
    
      <item
           android:id="@+id/nav_newversion"
           tools:ignore="MenuTitle"
           app:actionViewClass="com.package.meteorocorte.customitem" />
</menu>

customitem.java

public class customitem extends LinearLayout {
    TextView text=new TextView(getContext());

    public customitem(Context context) {
        super(context);
        setOrientation(VERTICAL);
        setLayoutParams(new LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT));
        setBackgroundColor(Color.GREEN);
        setPadding(0,12,0,12);
        text.setText(("hola"));
        text.setLayoutParams(new LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT));
        text.setTextColor(Color.BLACK);
        addView(text);
    }

    public TextView getText() {
        return text;
    }
}

MainActivity.java

MenuItem item=((NavigationView)findViewById(R.id.nav_view)).getMenu().getItem(0);
item.setVisible(true);
TextView text= ((customitem) item.getActionView()).getText();//aqui me da java.lang.NullPointerException

And if you were wondering if customization would work, I leave you the image:

hello developer community, I want to implement the same method in two anonymous classes to save myself from writing this method several times, the algorithm is a bit more complex but I want to give an example with this:

public class MainActivity extends AppCompatActivity {

    interface $miinterfaz{
        void primero(Integer entero);
        void segundo();
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        $miinterfaz inter1=new $miinterfaz(){//primera clase anónima

            @Override
            public void primero(Integer entero) {
                int nuevoentero=entero+10;//aca solo le sumo 10
                Log.i("este metodo cambia","entero = "+nuevoentero);
            }

            @Override
            public void segundo() {
                Log.i("este metodo es el mismo","solo quiero imprimir este mensaje");//este mensaje es igual en los dos casos
            }
        };
        $miinterfaz inter2=new $miinterfaz(){//segunda clase anónima

            @Override
            public void primero(Integer entero) {
                int nuevoentero=entero+50;//aquí es diferente el calculo sumándole 50
                Log.i("este metodo cambia","entero = "+nuevoentero);
            }

            @Override
            public void segundo() {
                Log.i("este metodo es el mismo","solo quiero imprimir este mensaje");
            }
        };
        
        ejecutar(inter1);
        ejecutar(inter2);
    }
    public void ejecutar($miinterfaz inter){
        inter.primero(8);
        inter.segundo();
    }
}

so the question is how do I copy the second method in the other anonymous class? or if there is another technique to avoid writing this method several times but taking into account that the first one does change, so the log remains:

I/este metodo cambia: entero = 18
I/este metodo es el mismo: solo quiero imprimir este mensaje
I/este metodo cambia: entero = 58
I/este metodo es el mismo: solo quiero imprimir este mensaje

Well, so that we are in tune, my idea is to create a logger

I already managed to make it have vertical scroll but how do I make it not fit the text in TextViewit I share the code:

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent">
    <EditText
        android:id="@+id/edit"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:textSize="20sp"
        android:hint="texto" />
    <Button
        android:id="@+id/send"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="enviar"
        app:layout_constraintTop_toBottomOf="@id/edit"/>
    <TextView
        android:id="@+id/test1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:lines="4"
        android:scrollbars="vertical|horizontal"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintTop_toTopOf="parent" />
</android.support.constraint.ConstraintLayout>

JAVA:

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity);

        final TextView textView = (TextView) findViewById(R.id.test1);
        Button but=(Button) findViewById(R.id.send);
        final EditText edit=(EditText) findViewById(R.id.edit);

        textView.setMovementMethod(new ScrollingMovementMethod());
        but.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                String text=edit.getText().toString();
                textView.append("\n"+text);
            }
        });
    }
}

RESULT:

This is how the vertical scroll works but not the horizontal

MOST ACCURATE ANSWER

<HorizontalScrollView
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintTop_toTopOf="parent">
    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content">
        <TextView
            android:id="@+id/test1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:lines="4"
            android:scrollbars="vertical" />
    </LinearLayout>
</HorizontalScrollView>

but : being wrap_content the size of the textview is not the best to facilitate vertical movement

my question originated when trying to compare 2 words of different origin, one from phpmyadmin and another from excel, which visually looked exact but when executed it gave false

the difference can be seen in sublime

but then in what case is 160 used and in what others is 32