[안드로이드 기초] 손가락 터치 제스쳐 이벤트

손가락 터치 제스쳐 이벤트

#화면xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
   
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    >
 
    <View
        android:id="@+id/view"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="1"
        android:background="@android:color/holo_blue_bright"></View>
 
    <View
        android:id="@+id/view2"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="1"
        android:background="@android:color/holo_orange_dark"></View>
 
    <ScrollView
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="1">
 
        <TextView
            android:id="@+id/textView"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:textColor="#000000"
            android:textSize="16dp" />
 
    </ScrollView>
 
    <EditText
        android:id="@+id/editText"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:ems="10"
        android:background="@drawable/my_selector"
        android:inputType="text"
        android:text=""
        />
 
</LinearLayout>
 

참고!

android:background="@drawable/my_selector"

배경화면을 drawable 안에 있는 xml로 만들었다.

#main.java

package me.happygate.myapplication777;
 
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.GestureDetector;
import android.view.KeyEvent;
import android.view.MotionEvent;
import android.view.View;
import android.widget.TextView;
import android.widget.Toast;
 
public class MainActivity extends AppCompatActivity {
 
    TextView textView;
 
    //제스쳐 할때
    GestureDetector detector;
 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
 
        textView=(TextView)findViewById(R.id.textView);
 
        View view = findViewById(R.id.view);
 
        //첫번재 뷰에 손가락 터치 했을 때
        view.setOnTouchListener(new View.OnTouchListener() {
 
            @Override
            public boolean onTouch(View v, MotionEvent event) {
                int action = event.getAction();
                float curY = event.getY();
                float curX = event.getX();
 
 
 
                if(action == MotionEvent.ACTION_DOWN){
 
                    println("손가락 눌렀음:"+curX+","+curY);
                }else if (action == MotionEvent.ACTION_MOVE){
 
                    println("손가락 움직임:"+curX+","+curY);
 
                }else if(action == MotionEvent.ACTION_UP){
 
                    println("손가락 때졌음:"+curX+","+curY);
                }
 
                return true;
            }
        });
 
 
 
 
 
        //제스쳐
        detector = new GestureDetector(this, new GestureDetector.OnGestureListener() {
            @Override
            public boolean onDown(MotionEvent e) {
 
                println("onDown 호출됨");
                return true;
            }
 
            @Override
            public void onShowPress(MotionEvent e) {
                println("onShowPress 호출됨");
            }
 
            @Override
            public boolean onSingleTapUp(MotionEvent e) {
                println("onSingleTapUp 호출됨");
                return true;
            }
 
            @Override
            public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) {
 
                println("onScroll 호출됨:"+distanceX+","+distanceY);
                return true;
            }
 
            @Override
            public void onLongPress(MotionEvent e) {
                println("onLongPress 호출됨");
 
            }
 
            @Override
            public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
                println("onFling 호출됨:"+velocityX+","+velocityY);
                return true;
            }
        });
 

//두번째 view에 제스쳐 했을 때 
        View view2 = findViewById(R.id.view2);
        view2.setOnTouchListener(new View.OnTouchListener() {
            @Override
            public boolean onTouch(View v, MotionEvent event) {
                detector.onTouchEvent(event);
                return true;
            }
        });
    }
 
 
 
    //키가 눌렸을 때 발생하는 이벤트
    @Override
    public boolean onKeyDown(int keyCode, KeyEvent event) {
 
        if(keyCode == KeyEvent.KEYCODE_BACK){
 
            Toast.makeText(this,"시스템 back 버튼 눌림",Toast.LENGTH_LONG).show();
            return true;
        }
 
            return  false;
    }
 
    //출력 함수
    public void println(String data){
        textView.append(data+"\n");
    }
}