10일차 TouchEvent

manifast.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.gusfree.touchevent"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk android:minSdkVersion="8" />

    <application
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name" >
        <activity
            android:name=".TouchEventActivity"
            android:label="@string/app_name" 
            android:theme="@android:style/Theme.NoTitleBar.Fullscreen">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

TouchEventActivity.java

package com.gusfree.touchevent;

import android.app.Activity;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Color;
import android.os.Bundle;
import android.view.Display;
import android.view.MotionEvent;
import android.view.View;
import android.view.WindowManager;
import android.widget.LinearLayout;
import android.widget.LinearLayout.LayoutParams;

public class TouchEventActivity extends Activity {

	MyView myView;
	float x,y;
	int width,height;
	Bitmap bitmap;
	
	@Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        myView = new MyView(this);
        LinearLayout layout = new LinearLayout(this);//배경
        LayoutParams params = 
        		new LayoutParams(LayoutParams.FILL_PARENT,LayoutParams.FILL_PARENT);
        layout.setLayoutParams(params);
        layout.setBackgroundColor(Color.WHITE);
        layout.addView(myView);
        setContentView(layout);
        
        WindowManager manager =(WindowManager)getSystemService(WINDOW_SERVICE);
        Display display = manager.getDefaultDisplay();
        
        width=display.getWidth();//내 화면의 가로 사이즈
        height=display.getHeight();//내 화면의 세로 사이즈
        x=width/2;//초기값
        y=height/2;
        bitmap=BitmapFactory.decodeResource(getResources(), R.drawable.snoopy);
    }
	
	class MyView extends View{

		public MyView(Context context) {
			super(context);
		}
		
		@Override
		protected void onDraw(Canvas canvas) {
			super.onDraw(canvas);
			
			canvas.drawBitmap(bitmap,x,y,null);
		}
	}
	@Override
	public boolean dispatchTouchEvent(MotionEvent ev) {
		x=ev.getRawX();
		y=ev.getRawY();
		
		myView.postInvalidate();//다시 그려라
		return super.dispatchTouchEvent(ev);
	}
}