Hello guys,
Please I would like some help on this.
I have 2 Buttons that would receive the same touch types and perform different actions which is a message that should appear in TextView depending on touch type.
Please guide me through this
Thank you.
here is my code :
Activity Main XML
Please I would like some help on this.
I have 2 Buttons that would receive the same touch types and perform different actions which is a message that should appear in TextView depending on touch type.
Please guide me through this
Thank you.
here is my code :
Java:
package com.example.vuelve;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.view.GestureDetector;
import android.view.MotionEvent;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
public class MainActivity extends AppCompatActivity implements View.OnTouchListener,
GestureDetector.OnDoubleTapListener,
GestureDetector.OnGestureListener {
public Button GreenBoton, RedBoton;
public TextView Message;
public GestureDetector GD;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
GreenBoton = findViewById(R.id.IDBotonV);
RedBoton = findViewById(R.id.IDBotonR);
Message = findViewById(R.id.IDTexto);
GD = new GestureDetector(this, this);
GD.setOnDoubleTapListener(this);
}
@Override
public boolean onTouch(View v, MotionEvent event) {
this.GD.onTouchEvent(event);
event.getAction();
if(v.getId()== R.id.IDBotonV){
if(onSingleTapConfirmed(event)){Message.setText("Blue SingleTap");}
if(onDoubleTap(event)){Message.setText("Blue onDoubleTap");}
if(onDoubleTapEvent(event)){Message.setText("Blue DoubleTap");}
if(onDown(event)){Message.setText("Blue Down");}}
if(v.getId()== R.id.IDBotonR){
if(onSingleTapConfirmed(event)){Message.setText("Red SingleTap");}
if(onDoubleTap(event)){Message.setText("Red onDoubleTap");}
if(onDoubleTapEvent(event)){Message.setText("Red DoubleTap");}
if(onDown(event)){Message.setText("Red Down");}
}
return true;
}
@Override
public boolean onSingleTapConfirmed(MotionEvent e) {
GreenBoton.setOnTouchListener(this);
RedBoton.setOnTouchListener(this);
return false;
}
@Override
public boolean onDoubleTap(MotionEvent e) {
GreenBoton.setOnTouchListener(this);
RedBoton.setOnTouchListener(this);
return true;
}
@Override
public boolean onDoubleTapEvent(MotionEvent e) {
GreenBoton.setOnTouchListener(this);
RedBoton.setOnTouchListener(this);
return true;
}
@Override
public boolean onDown(MotionEvent e) {
GreenBoton.setOnTouchListener(this);
RedBoton.setOnTouchListener(this);
return true;
}
@Override
public void onShowPress(MotionEvent e) {
}
@Override
public boolean onSingleTapUp(MotionEvent e) {
return false;
}
@Override
public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) {
return false;
}
@Override
public void onLongPress(MotionEvent e) {
}
@Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
return false;
}
}
Activity Main XML
Code:
<?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"
android:background="#64AEE9"
tools:context=".MainActivity">
<Button
android:id="@+id/IDBotonV"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="50dp"
android:layout_marginTop="240dp"
android:background="#4CAF50"
android:text="Verde"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/IDTexto" />
<TextView
android:id="@+id/IDTexto"
android:layout_width="242dp"
android:layout_height="56dp"
android:layout_marginTop="124dp"
android:background="#FFEB3B"
android:gravity="center_horizontal|center_vertical"
android:hint="Motion"
android:textSize="30sp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.497"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<Button
android:id="@+id/IDBotonR"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="240dp"
android:layout_marginEnd="50dp"
android:background="#F44336"
android:text="Rojo"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toBottomOf="@+id/IDTexto" />
</androidx.constraintlayout.widget.ConstraintLayout>