package com.example.lsh.capstonp;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Path;
import android.graphics.PorterDuff;
import android.graphics.PorterDuffXfermode;
import android.graphics.Xfermode;
import android.media.Image;
import android.os.Bundle;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.util.AttributeSet;
import android.util.Log;
import android.view.MotionEvent;
import android.view.View;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.ImageButton;
import android.widget.LinearLayout;
public class MainActivity extends AppCompatActivity {
private touchView1 drawView;
private ImageButton currPaint;
ImageButton imageButton;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
drawView = (touchView1) findViewById(R.id.drawing);
imageButton = (ImageButton) findViewById(R.id.erase_btn);
}
void btn_click(View v){
switch(v.getId()){
case R.id.erase_btn:
}
}
}
// 그림그리는 도화지
class touchView1 extends View {
private Paint paint = new Paint();
private Path path = new Path();
private int paintColor = 0xFF000000;
private Paint canvasPaint;
private Canvas drawCanvas;
private Bitmap canvasBitmap;
public touchView1(Context context, AttributeSet attrs) {
super(context, attrs);
paint.setAntiAlias(true);
paint.setStrokeWidth(10f);
paint.setColor(paintColor);
paint.setStyle(Paint.Style.STROKE);
paint.setStrokeJoin(Paint.Join.ROUND);
}
@Override
protected void onSizeChanged(int w, int h, int oldw, int oldh) {
super.onSizeChanged(w, h, oldw, oldh);
canvasBitmap = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888);
drawCanvas = new Canvas(canvasBitmap);
canvasPaint = new Paint(Paint.DITHER_FLAG);
}
@Override
public boolean onTouchEvent(MotionEvent event) {
float touchX = event.getX();
float touchY = event.getY();
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
path.moveTo(touchX, touchY);
break;
case MotionEvent.ACTION_MOVE:
path.lineTo(touchX, touchY);
break;
case MotionEvent.ACTION_UP:
drawCanvas.drawPath(path, paint);
path.reset();
break;
default:
return false;
}
invalidate();
return true;
}
@Override
public void onDraw(Canvas canvas) {
canvas.drawBitmap(canvasBitmap, 0, 0, canvasPaint);
canvas.drawPath(path, paint);
}
}
코드는 여기까지 작성해봣습니다 1.초기화 2.저장하기 3.뒤로가기 코드를 만들고 싶은데 어떻게 추가하면 될까요?
