如何保存画漆自定义视图的Android？自定义、视图、oid、Andr
2023-09-07 15:17:48
作者：再好的都毁在了备注
我使用下面的code。而我现在的储蓄。我是能够拯救位图图像，但是当保存BIMAP这也节省了我删去了也画有黑色
当越来越问题 公共类FingerPaint扩展GraphicsActivity
实现ColorPickerDialog.OnColorChangedListener {
@覆盖
保护无效的onCreate（包savedInstanceState）{
super.onCreate（savedInstanceState）;
的setContentView（新MyView的（这个））;
mPaint =新的油漆（）;
mPaint.setAntiAlias（真正的）;
mPaint.setDither（真正的）;
mPaint.setColor（0xFFFF0000地址）;
mPaint.setStyle（Paint.Style.STROKE）;
mPaint.setStrokeJoin（Paint.Join.ROUND）;
mPaint.setStrokeCap（Paint.Cap.ROUND）;
mPaint.setStrokeWidth（12）;
mEmboss =新EmbossMaskFilter（新浮法[] {1，1,1}，
0.4f，6，3.5F）;
运动模糊=新BlurMaskFilter（8，BlurMaskFilter.Blur.NORMAL）;
}
私人油漆mPaint;
私人MaskFilter将mEmboss;
私人MaskFilter将运动模糊;
公共无效colorChanged（INT颜色）{
mPaint.setColor（颜色）;
}
公共类MyView的扩展视图{
私有静态最终浮动MINP = 0.25f;
私有静态最终浮动MAXP = 0.75f;
私人位图mBitmap;
私人帆布mCanvas;
私人路径的mpath;
私人油漆mBitmapPaint;
公共MyView的（语境C）{
超级（C）;
mBitmap = Bitmap.createBitmap（320，480，Bitmap.Config.ARGB_8888）;
mCanvas =新的Canvas（mBitmap）;
的mpath =新路径（）;
mBitmapPaint =新的油漆（Paint.DITHER_FLAG）;
}
@覆盖
保护无效onSizeChanged（INT W，INT小时，INT oldw，诠释oldh）{
super.onSizeChanged（W，H，oldw，oldh）;
}
@覆盖
保护无效的OnDraw（帆布油画）{
canvas.drawColor（0xFFAAAAAA）;
canvas.drawBitmap（mBitmap，0，0，mBitmapPaint）;
canvas.drawPath（的mpath，mPaint）;
}
私人浮动MX，我的;
私有静态最终浮动TOUCH_TOLERANCE = 4;
私人无效touch_start（浮X，浮动Y）{
mPath.reset（）;
mPath.moveTo（X，Y）;
MX = X;
我= Y;
}
私人无效TOUCH_MOVE（浮X，浮动Y）{
浮DX = Math.abs（X - MX）;
浮DY = Math.abs（Y - 我的）;
如果（DX＆GT; = TOUCH_TOLERANCE || DY＆GT; = TOUCH_TOLERANCE）{
mPath.quadTo（MX，MY，（X + MX）/ 2，（Y +我）/ 2）;
MX = X;
我= Y;
}
}
私人无效touch_up（）{
mPath.lineTo（MX，MY）;
//提交路径，我们的屏幕外
mCanvas.drawPath（的mpath，mPaint）;
//杀了这个，所以我们不重复抽奖
mPath.reset（）;
}
@覆盖
公共布尔的onTouchEvent（MotionEvent事件）{
浮X = event.getX（）;
浮动Y = event.getY（）;
开关（event.getAction（））{
案例MotionEvent.ACTION_DOWN：
touch_start（X，Y）;
无效（）;
打破;
案例MotionEvent.ACTION_MOVE：
TOUCH_MOVE（X，Y）;
无效（）;
打破;
案例MotionEvent.ACTION_UP：
润色（）;
无效（）;
打破;
}
返回true;
}
}
私有静态最终诠释COLOR_MENU_ID = Menu.FIRST;
私有静态最终诠释EMBOSS_MENU_ID = Menu.FIRST + 1;
私有静态最终诠释BLUR_MENU_ID = Menu.FIRST + 2;
私有静态最终诠释ERASE_MENU_ID = Menu.FIRST + 3;
私有静态最终诠释SRCATOP_MENU_ID = Menu.FIRST + 4;
@覆盖
公共布尔onCreateOptionsMenu（功能菜单）{
super.onCreateOptionsMenu（菜单）;
menu.add（0，COLOR_MENU_ID，0，颜色）setShortcut（'3'，'c'）中。
menu.add（0，EMBOSS_MENU_ID，0，浮雕）setShortcut（'4'，'s'的）。
menu.add（0，BLUR_MENU_ID，0，模糊）setShortcut（'5'，'Z'）。
menu.add（0，ERASE_MENU_ID，0，擦除）setShortcut（'5'，'Z'）。
menu.add（0，SRCATOP_MENU_ID，0，SrcATop）setShortcut（'5'，'Z'）。
/ ****这是该机制与滤镜效果延伸？
意向意图=新的意图（空，getIntent（）的getData（））;
intent.addCategory（Intent.CATEGORY_ALTERNATIVE）;
menu.addIntentOptions（
Menu.ALTERNATIVE，0，
新的组件名（本，NotesList.class）
空，意向，0，NULL）;
***** /
返回true;
}
@覆盖
公共布尔prepareOptionsMenu（功能菜单）在{
super.on prepareOptionsMenu（菜单）;
返回true;
}
@覆盖
公共布尔onOptionsItemSelected（菜单项项）{
mPaint.setXfermode（空）;
mPaint.setAlpha（0xFF的）;
开关（item.getItemId（））{
案例COLOR_MENU_ID：
新ColorPickerDialog（这个，这个，mPaint.getColor（））显示（）。
返回true;
案例EMBOSS_MENU_ID：
如果（mPaint.getMaskFilter（）！= mEmboss）{
mPaint.setMaskFilter（mEmboss）;
} 其他 {
mPaint.setMaskFilter（空）;
}
返回true;
案例BLUR_MENU_ID：
如果（mPaint.getMaskFilter（）！=运动模糊）{
mPaint.setMaskFilter（运动模糊）;
} 其他 {
mPaint.setMaskFilter（空）;
}
返回true;
案例ERASE_MENU_ID：
mPaint.setXfermode（新PorterDuffXfermode（
PorterDuff.Mode.CLEAR））;
返回true;
案例SRCATOP_MENU_ID：
mPaint.setXfermode（新PorterDuffXfermode（
PorterDuff.Mode.SRC_ATOP））;
mPaint.setAlpha（0x80的）;
返回true;
}
返回super.onOptionsItemSelected（项目）;
}
}
解决方案
我做了一些改变你的code和它的作品。我还添加了一个保存选项。
公共类FingerPaintActivity扩展GraphicsActivity实现ColorPickerDialog.OnColorChangedListener {
MyView的MV;
@覆盖
保护无效的onCreate（包savedInstanceState）{
super.onCreate（savedInstanceState）;
MV =新的MyView的（这一点）;
mv.setDrawingCacheEnabled（真正的）;
的setContentView（MV）;
mPaint =新的油漆（）;
mPaint.setAntiAlias（真正的）;
mPaint.setDither（真正的）;
mPaint.setColor（0xFFFF0000地址）;
mPaint.setStyle（Paint.Style.STROKE）;
mPaint.setStrokeJoin（Paint.Join.ROUND）;
mPaint.setStrokeCap（Paint.Cap.ROUND）;
mPaint.setStrokeWidth（12）;
mEmboss =新EmbossMaskFilter（新浮法[] {1，1,1}，
0.4f，6，3.5F）;
运动模糊=新BlurMaskFilter（8，BlurMaskFilter.Blur.NORMAL）;
}
私人油漆mPaint;
私人MaskFilter将mEmboss;
私人MaskFilter将运动模糊;
公共无效colorChanged（INT颜色）{
mPaint.setColor（颜色）;
}
公共类MyView的扩展视图{
私有静态最终浮动MINP = 0.25f;
私有静态最终浮动MAXP = 0.75f;
私人位图mBitmap;
私人帆布mCanvas;
私人路径的mpath;
私人油漆mBitmapPaint;
上下文语境;
公共MyView的（语境C）{
超级（C）;
上下文= C;
// mBitmap = Bitmap.createBitmap（320，480，Bitmap.Config.ARGB_8888）;
的mpath =新路径（）;
mBitmapPaint =新的油漆（Paint.DITHER_FLAG）;
}
@覆盖
保护无效onSizeChanged（INT W，INT小时，INT oldw，诠释oldh）{
super.onSizeChanged（W，H，oldw，oldh）;
mBitmap = Bitmap.createBitmap（W，H，Bitmap.Config.ARGB_8888）;
mCanvas =新的Canvas（mBitmap）;
}
@覆盖
保护无效的OnDraw（帆布油画）{
canvas.drawColor（0xFFAAAAAA）;
canvas.drawBitmap（mBitmap，0，0，mBitmapPaint）;
canvas.drawPath（的mpath，mPaint）;
}
私人浮动MX，我的;
私有静态最终浮动TOUCH_TOLERANCE = 4;
私人无效touch_start（浮X，浮动Y）{
mPath.reset（）;
mPath.moveTo（X，Y）;
MX = X;
我= Y;
}
私人无效TOUCH_MOVE（浮X，浮动Y）{
浮DX = Math.abs（X - MX）;
浮DY = Math.abs（Y - 我的）;
如果（DX＆GT; = TOUCH_TOLERANCE || DY＆GT; = TOUCH_TOLERANCE）{
mPath.quadTo（MX，MY，（X + MX）/ 2，（Y +我）/ 2）;
MX = X;
我= Y;
}
}
私人无效touch_up（）{
mPath.lineTo（MX，MY）;
//提交路径，我们的屏幕外
mCanvas.drawPath（的mpath，mPaint）;
//杀了这个，所以我们不重复抽奖
mPath.reset（）;
mPaint.setXfermode（新PorterDuffXfermode（PorterDuff.Mode.SCREEN））;
mPaint.setMaskFilter（空）;
}
@覆盖
公共布尔的onTouchEvent（MotionEvent事件）{
浮X = event.getX（）;
浮动Y = event.getY（）;
开关（event.getAction（））{
案例MotionEvent.ACTION_DOWN：
touch_start（X，Y）;
无效（）;
打破;
案例MotionEvent.ACTION_MOVE：
TOUCH_MOVE（X，Y）;
无效（）;
打破;
案例MotionEvent.ACTION_UP：
润色（）;
无效（）;
打破;
}
返回true;
}
}
私有静态最终诠释COLOR_MENU_ID = Menu.FIRST;
私有静态最终诠释EMBOSS_MENU_ID = Menu.FIRST + 1;
私有静态最终诠释BLUR_MENU_ID = Menu.FIRST + 2;
私有静态最终诠释ERASE_MENU_ID = Menu.FIRST + 3;
私有静态最终诠释SRCATOP_MENU_ID = Menu.FIRST + 4;
私有静态最终诠释保存= Menu.FIRST + 5;
@覆盖
公共布尔onCreateOptionsMenu（功能菜单）{
super.onCreateOptionsMenu（菜单）;
menu.add（0，COLOR_MENU_ID，0，颜色）setShortcut（'3'，'c'）中。
menu.add（0，EMBOSS_MENU_ID，0，浮雕）setShortcut（'4'，'s'的）。
menu.add（0，BLUR_MENU_ID，0，模糊）setShortcut（'5'，'Z'）。
menu.add（0，ERASE_MENU_ID，0，擦除）setShortcut（'5'，'Z'）。
menu.add（0，SRCATOP_MENU_ID，0，SrcATop）setShortcut（'5'，'Z'）。
menu.add（0，保存，0，保存）setShortcut（'5'，'Z'）。
/ ****这是该机制与滤镜效果延伸？
意向意图=新的意图（空，getIntent（）的getData（））;
intent.addCategory（Intent.CATEGORY_ALTERNATIVE）;
menu.addIntentOptions（
Menu.ALTERNATIVE，0，
新的组件名（本，NotesList.class）
空，意向，0，NULL）;
***** /
返回true;
}
@覆盖
公共布尔prepareOptionsMenu（功能菜单）在{
super.on prepareOptionsMenu（菜单）;
返回true;
}
@覆盖
公共布尔onOptionsItemSelected（菜单项项）{
mPaint.setXfermode（空）;
mPaint.setAlpha（0xFF的）;
开关（item.getItemId（））{
案例COLOR_MENU_ID：
新ColorPickerDialog（这个，这个，mPaint.getColor（））显示（）。
返回true;
案例EMBOSS_MENU_ID：
如果（mPaint.getMaskFilter（）！= mEmboss）{
mPaint.setMaskFilter（mEmboss）;
} 其他 {
mPaint.setMaskFilter（空）;
}
返回true;
案例BLUR_MENU_ID：
如果（mPaint.getMaskFilter（）！=运动模糊）{
mPaint.setMaskFilter（运动模糊）;
} 其他 {
mPaint.setMaskFilter（空）;
}
返回true;
案例ERASE_MENU_ID：
mPaint.setXfermode（新PorterDuffXfermode（
PorterDuff.Mode.CLEAR））;
返回true;
案例SRCATOP_MENU_ID：
mPaint.setXfermode（新PorterDuffXfermode（
PorterDuff.Mode.SRC_ATOP））;
mPaint.setAlpha（0x80的）;
返回true;
情况下节省：
AlertDialog.Builder editalert =新AlertDialog.Builder（FingerPaintActivity.this）;
editalert.setTitle（请输入与您要保存的名字）;
最后的EditText输入=新的EditText（FingerPaintActivity.this）;
LinearLayout.LayoutParams LP =新LinearLayout.LayoutParams（
LinearLayout.LayoutParams.FILL_PARENT，
LinearLayout.LayoutParams.FILL_PARENT）;
input.setLayoutParams（LP）;
editalert.setView（输入）;
editalert.setPositiveButton（OK，新DialogInterface.OnClickListener（）{
公共无效的onClick（DialogInterface对话，诠释whichButton）{
字符串名称= input.getText（）的toString（）。
点阵位图= mv.getDrawingCache（）;
字符串路径= Environment.getExternalStorageDirectory（）getAbsolutePath（）。
档案文件=新的文件（/ SD卡/+姓名+PNG）;
尝试
{
如果（！file.exists（））
{
file.createNewFile（）;
}
FileOutputStream中的ostream =新的FileOutputStream（文件）;
bitmap.com preSS（比较pressFormat.PNG，10，ostream的）;
的System.out.println（节约.......................................... ............+路径）;
ostream.close（）;
mv.invalidate（）;
}
赶上（例外五）
{
e.printStackTrace（）;
}最后
{
mv.setDrawingCacheEnabled（假）;
}
}
}）;
editalert.show（）;
返回true;
}
返回super.onOptionsItemSelected（项目）;
}
}
编辑：
@覆盖
保护无效onSizeChanged（INT W，INT小时，INT oldw，诠释oldh）{
super.onSizeChanged（W，H，oldw，oldh）;
mBitmap = Bitmap.createBitmap（W，H，Bitmap.Config.ARGB_8888）;
mCanvas =新的Canvas（mBitmap）;
BMP位= BitmapFactory.de codeResource（getResources（），R.drawable.afor）;
mCanvas.drawBitmap（BMP，0，0，mPaint）;
}
I am using following code . and i am getting problem when saving images .i am able to save bitmap but when save bimap it saves also i erased paint also with black color
public class FingerPaint extends GraphicsActivity
implements ColorPickerDialog.OnColorChangedListener {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(new MyView(this));
mPaint = new Paint();
mPaint.setAntiAlias(true);
mPaint.setDither(true);
mPaint.setColor(0xFFFF0000);
mPaint.setStyle(Paint.Style.STROKE);
mPaint.setStrokeJoin(Paint.Join.ROUND);
mPaint.setStrokeCap(Paint.Cap.ROUND);
mPaint.setStrokeWidth(12);
mEmboss = new EmbossMaskFilter(new float[] { 1, 1, 1 },
0.4f, 6, 3.5f);
mBlur = new BlurMaskFilter(8, BlurMaskFilter.Blur.NORMAL);
}
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;
public MyView(Context c) {
super(c);
mBitmap = Bitmap.createBitmap(320, 480, Bitmap.Config.ARGB_8888);
mCanvas = new Canvas(mBitmap);
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);
}
@Override
protected void onDraw(Canvas canvas) {
canvas.drawColor(0xFFAAAAAA);
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) {
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);
// kill this so we don't double draw
mPath.reset();
}
@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;
@Override
public boolean onCreateOptionsMenu(Menu menu) {
super.onCreateOptionsMenu(menu);
menu.add(0, COLOR_MENU_ID, 0, "Color").setShortcut('3', 'c');
menu.add(0, EMBOSS_MENU_ID, 0, "Emboss").setShortcut('4', 's');
menu.add(0, BLUR_MENU_ID, 0, "Blur").setShortcut('5', 'z');
menu.add(0, ERASE_MENU_ID, 0, "Erase").setShortcut('5', 'z');
menu.add(0, SRCATOP_MENU_ID, 0, "SrcATop").setShortcut('5', 'z');
/**** Is this the mechanism to extend with filter effects?
Intent intent = new Intent(null, getIntent().getData());
intent.addCategory(Intent.CATEGORY_ALTERNATIVE);
menu.addIntentOptions(
Menu.ALTERNATIVE, 0,
new ComponentName(this, NotesList.class),
null, intent, 0, null);
*****/
return true;
}
@Override
public boolean 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 ColorPickerDialog(this, this, mPaint.getColor()).show();
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));
return true;
case SRCATOP_MENU_ID:
mPaint.setXfermode(new PorterDuffXfermode(
PorterDuff.Mode.SRC_ATOP));
mPaint.setAlpha(0x80);
return true;
}
return super.onOptionsItemSelected(item);
}
}
解决方案
I made a few changes to your code and it works. I also added a save option.
public class FingerPaintActivity extends GraphicsActivity implements ColorPickerDialog.OnColorChangedListener {
MyView mv;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mv= new MyView(this);
mv.setDrawingCacheEnabled(true);
setContentView(mv);
mPaint = new Paint();
mPaint.setAntiAlias(true);
mPaint.setDither(true);
mPaint.setColor(0xFFFF0000);
mPaint.setStyle(Paint.Style.STROKE);
mPaint.setStrokeJoin(Paint.Join.ROUND);
mPaint.setStrokeCap(Paint.Cap.ROUND);
mPaint.setStrokeWidth(12);
mEmboss = new EmbossMaskFilter(new float[] { 1, 1, 1 },
0.4f, 6, 3.5f);
mBlur = new BlurMaskFilter(8, BlurMaskFilter.Blur.NORMAL);
}
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(Context c) {
super(c);
context=c;
//mBitmap = Bitmap.createBitmap(320, 480, Bitmap.Config.ARGB_8888);
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) {
canvas.drawColor(0xFFAAAAAA);
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) {
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);
// kill this so we don't double draw
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;
@Override
public boolean onCreateOptionsMenu(Menu menu) {
super.onCreateOptionsMenu(menu);
menu.add(0, COLOR_MENU_ID, 0, "Color").setShortcut('3', 'c');
menu.add(0, EMBOSS_MENU_ID, 0, "Emboss").setShortcut('4', 's');
menu.add(0, BLUR_MENU_ID, 0, "Blur").setShortcut('5', 'z');
menu.add(0, ERASE_MENU_ID, 0, "Erase").setShortcut('5', 'z');
menu.add(0, SRCATOP_MENU_ID, 0, "SrcATop").setShortcut('5', 'z');
menu.add(0, Save, 0, "Save").setShortcut('5', 'z');
/**** Is this the mechanism to extend with filter effects?
Intent intent = new Intent(null, getIntent().getData());
intent.addCategory(Intent.CATEGORY_ALTERNATIVE);
menu.addIntentOptions(
Menu.ALTERNATIVE, 0,
new ComponentName(this, NotesList.class),
null, intent, 0, null);
*****/
return true;
}
@Override
public boolean 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 ColorPickerDialog(this, this, mPaint.getColor()).show();
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));
return true;
case SRCATOP_MENU_ID:
mPaint.setXfermode(new PorterDuffXfermode(
PorterDuff.Mode.SRC_ATOP));
mPaint.setAlpha(0x80);
return true;
case Save:
AlertDialog.Builder editalert = new AlertDialog.Builder(FingerPaintActivity.this);
editalert.setTitle("Please Enter the name with which you want to Save");
final EditText input = new EditText(FingerPaintActivity.this);
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(CompressFormat.PNG, 10, ostream);
System.out.println("saving......................................................"+path);
ostream.close();
mv.invalidate();
}
catch (Exception e)
{
e.printStackTrace();
}finally
{
mv.setDrawingCacheEnabled(false);
}
}
});
editalert.show();
return true;
}
return super.onOptionsItemSelected(item);
}
}
Edit :
@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);
Bitmap bmp = BitmapFactory.decodeResource(getResources(), R.drawable.afor);
mCanvas.drawBitmap(bmp, 0, 0, mPaint);
}
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