Yes Vegard, Indeed i work with a custom View, and it is a fragment and i do not make refence to the default Layout (XML) here i put the code Im using (a little messy maybe)
import android.app.Activity; import android.app.AlertDialog; import android.app.Fragment; import android.app.FragmentManager; import android.content.Context; import android.content.DialogInterface; import android.graphics.Bitmap; import android.graphics.BlurMaskFilter; import android.graphics.Canvas; import android.graphics.EmbossMaskFilter; import android.graphics.MaskFilter; import android.graphics.Paint; import android.graphics.Path; import android.graphics.PorterDuff; import android.graphics.PorterDuffXfermode; import android.os.Bundle; import android.os.Environment; import android.support.v4.app.FragmentActivity; import android.view.LayoutInflater; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; import android.view.MotionEvent; import android.view.View; import android.view.ViewGroup; import android.widget.EditText; import android.widget.LinearLayout; import android.widget.RelativeLayout;
import java.io.File; import java.io.FileOutputStream;
public class PintarActivity extends Fragment implements MenuDialog.OnColorChangedListener {
protected RelativeLayout lLayout;
protected FragmentActivity faActivity;
MyView mv;
AlertDialog dialog;
public View onCreateView(LayoutInflater inflater, ViewGroup container , Bundle savedInstanceState) {
faActivity = (FragmentActivity) super.getActivity();
lLayout = (RelativeLayout) inflater.inflate(R.layout.activity_pintar, container, false);
mv= new MyView(this);
mv.setDrawingCacheEnabled(true);
//mv.setBackgroundResource(R.drawable.afor);//poner un background
mv.setBackgroundColor(0xFFFFFFFF);
mPaint = new Paint();
mPaint.setAntiAlias(true);
mPaint.setDither(true);
mPaint.setColor(0xFF000000);
mPaint.setStyle(Paint.Style.STROKE);
mPaint.setStrokeJoin(Paint.Join.ROUND);
mPaint.setStrokeCap(Paint.Cap.ROUND);
mPaint.setStrokeWidth(10);
mEmboss = new EmbossMaskFilter(new float[] { 1, 1, 1 },
0.4f, 6, 3.5f);
mBlur = new BlurMaskFilter(8, BlurMaskFilter.Blur.NORMAL);
return mv;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setHasOptionsMenu(true);
}
private Paint mPaint;
private MaskFilter mEmboss;
private MaskFilter mBlur;
public void colorChanged(int color) {
mPaint.setColor(color);
}
public class MyView extends View {
private static final float MINP = 0.25f;
private static final float MAXP = 0.75f;
private Bitmap mBitmap;
private Canvas mCanvas;
private Path mPath;
private Paint mBitmapPaint;
Context context;
public MyView(Fragment c) {
super(c.getActivity());
context=c.getActivity();
mPath = new Path();
mBitmapPaint = new Paint(Paint.DITHER_FLAG);
}
@Override
protected void onSizeChanged(int w, int h, int oldw, int oldh) {
super.onSizeChanged(w, h, oldw, oldh);
mBitmap = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888);
mCanvas = new Canvas(mBitmap);
}
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
canvas.drawBitmap(mBitmap, 0, 0, mBitmapPaint);
canvas.drawPath(mPath, mPaint);
}
private float mX, mY;
private static final float TOUCH_TOLERANCE = 4;
private void touch_start(float x, float y) {
//showDialog(); mPath.reset(); mPath.moveTo(x, y); mX = x; mY = y;
}
private void touch_move(float x, float y) {
float dx = Math.abs(x - mX);
float dy = Math.abs(y - mY);
if (dx >= TOUCH_TOLERANCE || dy >= TOUCH_TOLERANCE) {
mPath.quadTo(mX, mY, (x + mX)/2, (y + mY)/2);
mX = x;
mY = y;
}
}
private void touch_up() {
mPath.lineTo(mX, mY);
// commit the path to our offscreen mCanvas.drawPath(mPath, mPaint); // con este codigo no se ve el camino que vamos siguiendo / mPath.reset(); mPaint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SCREEN)); mPaint.setMaskFilter(null);/ }
@Override
public boolean onTouchEvent(MotionEvent event) {
float x = event.getX();
float y = event.getY();
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
touch_start(x, y);
invalidate();
break;
case MotionEvent.ACTION_MOVE:
touch_move(x, y);
invalidate();
break;
case MotionEvent.ACTION_UP:
touch_up();
invalidate();
break;
}
return true;
}
}
private static final int COLOR_MENU_ID = Menu.FIRST;
//private static final int EMBOSS_MENU_ID = Menu.FIRST + 1;
//private static final int BLUR_MENU_ID = Menu.FIRST + 2;
private static final int ERASE_MENU_ID = Menu.FIRST + 3;
// private static final int SRCATOP_MENU_ID = Menu.FIRST + 4;
//private static final int Save = Menu.FIRST + 5;
private static final int VOLVER_NEGRO_ID =Menu.FIRST+1 ;
@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
super.onCreateOptionsMenu(menu,inflater);
menu.add(0, COLOR_MENU_ID, 0, "Color").setShortcut('3', 'c');
// menu.add(0, EMBOSS_MENU_ID, 0, "relieve").setShortcut('4', 's');
//menu.add(0, BLUR_MENU_ID, 0, "Blur").setShortcut('5', 'z');
menu.add(0, ERASE_MENU_ID, 0, "Borrar").setShortcut('5', 'z');
// menu.add(0, SRCATOP_MENU_ID, 0, "SrcATop").setShortcut('5', 'z');
menu.add(0, VOLVER_NEGRO_ID ,0,"Color negro").setShortcut('5','z');
//menu.add(0, Save, 0, "Save").setShortcut('5', 'z');
}
@Override public void onPrepareOptionsMenu(Menu menu) { super.onPrepareOptionsMenu(menu); //return true; }
@Override
public boolean onOptionsItemSelected(MenuItem item) {
mPaint.setXfermode(null);
mPaint.setAlpha(0xFF);
switch (item.getItemId()) {
case COLOR_MENU_ID:
new MenuDialog(this.getActivity(),this,mPaint.getColor()).show();
mPaint.setStrokeWidth(10);
return true;
/*case EMBOSS_MENU_ID:
if (mPaint.getMaskFilter() != mEmboss) {
mPaint.setMaskFilter(mEmboss);
} else {
mPaint.setMaskFilter(null);
}
return true;*/
/*case BLUR_MENU_ID:
if (mPaint.getMaskFilter() != mBlur) {
mPaint.setMaskFilter(mBlur);
} else {
mPaint.setMaskFilter(null);
}
return true;*/
case ERASE_MENU_ID:
mPaint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.CLEAR));
mPaint.setAlpha(0x80);
mPaint.setStrokeWidth(40);
return true;
/* case SRCATOP_MENU_ID:
mPaint.setXfermode(new PorterDuffXfermode(
PorterDuff.Mode.SRC_ATOP));
mPaint.setAlpha(0x80);
return true;*/
case VOLVER_NEGRO_ID:
mPaint.setStrokeWidth(10);
mPaint.setColor(0xFF000000);
return true;
/* case Save:
AlertDialog.Builder editalert = new AlertDialog.Builder(PintarActivity.this.getActivity());
editalert.setTitle("Ingresa el nombre con el cual deseas Guardar");
final EditText input = new EditText(PintarActivity.this.getActivity());
LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.FILL_PARENT,
LinearLayout.LayoutParams.FILL_PARENT);
input.setLayoutParams(lp);
editalert.setView(input);
editalert.setPositiveButton("OK", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
String name= input.getText().toString();
Bitmap bitmap = mv.getDrawingCache();
String path = Environment.getExternalStorageDirectory().getAbsolutePath();
File file = new File("/sdcard/"+name+".png");
try
{
if(!file.exists())
{
file.createNewFile();
}
FileOutputStream ostream = new FileOutputStream(file);
bitmap.compress(Bitmap.CompressFormat.PNG, 10, ostream);
ostream.close();
mv.invalidate();
}
catch (Exception e)
{
e.printStackTrace();
}finally
{
mv.setDrawingCacheEnabled(false);
}
}
});
editalert.show();
return true;*/
}
return super.onOptionsItemSelected(item);
}
}