မ်က္​ႏွာျပင္​ ႏွစ္​ခါ ကလစ္​လ်ွင္​ အလုပ္​လုပ္​ျခင္​းသင္​ခန္​းစာ

main.xml
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<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/RelativeLayout1"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#FFF3E0">
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="စကရင္ နွစ္ခါ နွိပ္ျခင္းျဖင့္ Activity (သို့) Toast Message ျပျခင္း"
        android:layout_centerVertical="true"
        android:layout_centerHorizontal="true"
        android:gravity="center"
        android:textSize="25dp"
        android:textColor="#000000"/>
</RelativeLayout>

MainActivity.java
*****************


import android.os.Bundle;
import android.view.GestureDetector;
import android.view.MotionEvent;
import android.widget.Toast;
import android.app.*;

public class MainActivity extends Activity implements GestureDetector.OnGestureListener,
GestureDetector.OnDoubleTapListener {

    GestureDetector gestureDetector;

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

        gestureDetector = new GestureDetector(MainActivity.this, MainActivity.this);

    }

    @Override
    public boolean onTouchEvent(MotionEvent event){
        this.gestureDetector.onTouchEvent(event);
        return super.onTouchEvent(event);
    }

    @Override
    public boolean onDown(MotionEvent event) {

        return true;
    }

    @Override
    public boolean onFling(MotionEvent event1, MotionEvent event2,
                           float velocityX, float velocityY) {

        return false;
    }

    @Override
    public void onLongPress(MotionEvent event) {

    }

    @Override
    public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX,
                            float distanceY) {

        return false;
    }

    @Override
    public void onShowPress(MotionEvent event) {

    }

    @Override
    public boolean onSingleTapUp(MotionEvent event) {

        return false;
    }

    @Override
    public boolean onDoubleTap(MotionEvent event) {

        Toast.makeText(MainActivity.this, "Double Tap on Screen is Working.", Toast.LENGTH_LONG).show();

        return true;
    }

    @Override
    public boolean onDoubleTapEvent(MotionEvent event) {

        return true;
    }

    @Override
    public boolean onSingleTapConfirmed(MotionEvent event) {

        return false;
    }

}


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This is BMMA Lessons For Android.