Cuiu's Home

import android.os.Bundle;
import android.app.Activity;
import android.gesture.GestureOverlayView;
import android.view.GestureDetector;
import android.view.GestureDetector.OnGestureListener;
import android.view.Menu;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnTouchListener;
import android.widget.Toast;

public class MainActivity extends Activity implements OnTouchListener,
		OnGestureListener {

	GestureDetector det;
	//OnGestureListener,手勢
	
	GestureOverlayView gov;
	//OnTouchListener
	//一層透明的view,是一個軌跡,蓋在Activity上面

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		det=new GestureDetector(this);
		gov=(GestureOverlayView) this.findViewById(R.id.gestures);
		gov.setOnTouchListener(this);
	}


	@Override
	public boolean onDown(MotionEvent arg0) {
		// TODO Auto-generated method stub
		return false;
	}

	//快速滑動onFling
	@Override
	public boolean onFling(MotionEvent arg0, MotionEvent arg1, float arg2,
			float arg3) {
		//50是自行定義的數字,左上角的座標(0,0)
		//arg0是右邊,arg1是左邊
		if(arg0.getX()-arg1.getX() > 50)
		{
			
			Toast.makeText(MainActivity.this,"右往左滑",Toast.LENGTH_SHORT).show();
			return true;
			
		}else if(arg0.getX()-arg1.getX() < -50)
		{
			Toast.makeText(MainActivity.this,"左往右滑",Toast.LENGTH_SHORT).show();
			return true;
					
		}else if(arg0.getY()-arg1.getY() > 50)
		{//arg0是下面,arg1是上面
			Toast.makeText(MainActivity.this,"下往上滑",Toast.LENGTH_SHORT).show();
			return true;
				
		}
		else if(arg0.getY()-arg1.getY() < -50)
		{
			Toast.makeText(MainActivity.this,"上往下滑",Toast.LENGTH_SHORT).show();
			return true;
		}
		
		
		
		
		return false;
	}

	@Override
	public void onLongPress(MotionEvent arg0) {
		// TODO Auto-generated method stub

	}
	//慢速滑動onFling,行為也可以寫在這
	@Override
	public boolean onScroll(MotionEvent arg0, MotionEvent arg1, float arg2,
			float arg3) {
		// TODO Auto-generated method stub
		return false;
	}

	@Override
	public void onShowPress(MotionEvent arg0) {
		// TODO Auto-generated method stub

	}

	@Override
	public boolean onSingleTapUp(MotionEvent arg0) {
		// TODO Auto-generated method stub
		return false;
	}
	 // OnTouchListener Event
	@Override
	public boolean onTouch(View arg0, MotionEvent event) {
		det.onTouchEvent(event);
		return false;
	}
}

main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <TextView
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="FlingTest" />

    <android.gesture.GestureOverlayView
        android:id="@+id/gestures"
        android:layout_width="fill_parent"
        android:layout_height="0dip"
        android:layout_weight="1.0" >

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent" >
        </LinearLayout>

    </android.gesture.GestureOverlayView>

</LinearLayout>