androidcanvasimageviewpaintgeometry
Setting border to circular imageview is not working when paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
I want to set border to circular Image view and also want the image view to be inside the circle, so below is my code-
public static Bitmap getRoundedRectBitmap(Bitmap bitmap, int pixels) {
Bitmap result = null;
try {
result = Bitmap.createBitmap(pixels, pixels, Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(result);
Paint paint = new Paint();
Rect rect = new Rect(0, 0, pixels*2, pixels*2);
// paint.setAntiAlias(true);
//; canvas.drawARGB(0, 0, 0, 0);
paint.setStyle(Paint.Style.FILL);
paint.setColor(Color.WHITE);
canvas.drawCircle(pixels/2, pixels/2, pixels/2, paint);
paint.setStyle(Paint.Style.STROKE);
paint.setStrokeWidth(15);
paint.setColor(Color.parseColor("#17B3F0"));
canvas.drawCircle(pixels/2+0.7f, pixels/2+0.7f, pixels/2+0.1f, paint);
paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
canvas.drawBitmap(bitmap, rect, rect, paint);
} catch (NullPointerException e) {
} catch (OutOfMemoryError o) {
}
return result;
}
So the problem is with the line paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
If I am commenting this line, it's making all the properties added to paint object visible but making image comes out of the circle. But I want the Image to be inside the circle as well as a border to be set. Any help is appreciated.Thanks.
Updated from Here -
I have created a custom class which MyCustomAdapter and Inside getView I am setting the imageView onStateChangeListener as below -
@Override public View getView(int position, View convertView, ViewGroup parent) {
int type = getItemViewType(position);
View view = inflater.inflate(type == List_Section ? R.layout.section : R.layout.listitem, parent, false);
if (type == List_Section) {
departments = ((TextView) view.findViewById(R.id.tv_li_section));
departments.setText(list_complete_data.get(position).toString());
} else {
//StateListDrawable stateListDrawable = (StateListDrawable) view.getBackground();
Emp_name = (TextView) view.findViewById(R.id.emp_name);
Emp_number = (TextView) view.findViewById(R.id.emp_no);
small_profile =(CircleImageView)view.findViewById(R.id.small_profile);
Log.e(TAG,"small_profile====="+small_profile);
Log.e(TAG,"inside getView=====");
small_profile.setOnStateChangedListener(new OnStateChangeListener() {
@Override
public void onStateChanged(int state) {
Log.e(TAG,"onStateistener and state=="+state+".,,,R.attr.state_on==="+R.attr.state_on+",,,R.attr.state_off=="+R.attr.state_off);
switch (state){
case R.attr.state_on :
small_profile.setBorderColor(Color.parseColor("#ffffff"));
break;
case R.attr.state_off:
small_profile.setBorderColor(Color.parseColor("#000000"));
break;
}
}
});
Solution
EDIT : I have made some changes to the code according to your requirements:
add the following interface to your project:
public interface OnStateChangeListener {
void onStateChanged(int state);
}
and then make then I made some changes in the CircleImageView
public class CircleImageView extends ImageView implements View.OnTouchListener {
private static final int[] mStates = { R.attr.state_notset, R.attr.state_on, R.attr.state_off };
private int mStateIndex = 0; // first state is "notset"
private OnStateChangeListener mListener;
private static final ScaleType SCALE_TYPE = ScaleType.CENTER_CROP;
private static final Bitmap.Config BITMAP_CONFIG = Bitmap.Config.ARGB_8888;
private static final int COLORDRAWABLE_DIMENSION = 2;
private static final int DEFAULT_BORDER_WIDTH = 0;
private static final int DEFAULT_BORDER_COLOR = Color.BLACK;
private static final int DEFAULT_FILL_COLOR = Color.TRANSPARENT;
private static final boolean DEFAULT_BORDER_OVERLAY = false;
private final RectF mDrawableRect = new RectF();
private final RectF mBorderRect = new RectF();
private final Matrix mShaderMatrix = new Matrix();
private final Paint mBitmapPaint = new Paint();
private final Paint mBorderPaint = new Paint();
private final Paint mFillPaint = new Paint();
private int mBorderColor = DEFAULT_BORDER_COLOR;
private int mBorderWidth = DEFAULT_BORDER_WIDTH;
private int mFillColor = DEFAULT_FILL_COLOR;
private Bitmap mBitmap;
private BitmapShader mBitmapShader;
private int mBitmapWidth;
private int mBitmapHeight;
private float mDrawableRadius;
private float mBorderRadius;
private ColorFilter mColorFilter;
private boolean mReady;
private boolean mSetupPending;
private boolean mBorderOverlay;
public CircleImageView(Context context) {
super(context);
init();
}
public CircleImageView(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public CircleImageView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.CircleImageView, defStyle, 0);
mBorderWidth = a.getDimensionPixelSize(R.styleable.CircleImageView_civ_border_width, DEFAULT_BORDER_WIDTH);
mBorderColor = a.getColor(R.styleable.CircleImageView_civ_border_color, DEFAULT_BORDER_COLOR);
mBorderOverlay = a.getBoolean(R.styleable.CircleImageView_civ_border_overlay, DEFAULT_BORDER_OVERLAY);
mFillColor = a.getColor(R.styleable.CircleImageView_civ_fill_color, DEFAULT_FILL_COLOR);
a.recycle();
init();
}
private void init() {
super.setScaleType(SCALE_TYPE);
mReady = true;
if (mSetupPending) {
setup();
mSetupPending = false;
}
}
@Override
public ScaleType getScaleType() {
return SCALE_TYPE;
}
@Override
public void setScaleType(ScaleType scaleType) {
if (scaleType != SCALE_TYPE) {
throw new IllegalArgumentException(String.format("ScaleType %s not supported.", scaleType));
}
}
@Override
public void setAdjustViewBounds(boolean adjustViewBounds) {
if (adjustViewBounds) {
throw new IllegalArgumentException("adjustViewBounds not supported.");
}
}
@Override
protected void onDraw(Canvas canvas) {
if (mBitmap == null) {
return;
}
if (mFillColor != Color.TRANSPARENT) {
canvas.drawCircle(getWidth() / 2.0f, getHeight() / 2.0f, mDrawableRadius, mFillPaint);
}
canvas.drawCircle(getWidth() / 2.0f, getHeight() / 2.0f, mDrawableRadius, mBitmapPaint);
if (mBorderWidth != 0) {
canvas.drawCircle(getWidth() / 2.0f, getHeight() / 2.0f, mBorderRadius, mBorderPaint);
}
}
@Override
protected void onSizeChanged(int w, int h, int oldw, int oldh) {
super.onSizeChanged(w, h, oldw, oldh);
setup();
}
public int getBorderColor() {
return mBorderColor;
}
public void setBorderColor(@ColorInt int borderColor) {
if (borderColor == mBorderColor) {
return;
}
mBorderColor = borderColor;
mBorderPaint.setColor(mBorderColor);
invalidate();
}
public void setBorderColorResource(@ColorRes int borderColorRes) {
setBorderColor(getContext().getResources().getColor(borderColorRes));
}
public int getFillColor() {
return mFillColor;
}
public void setFillColor(@ColorInt int fillColor) {
if (fillColor == mFillColor) {
return;
}
mFillColor = fillColor;
mFillPaint.setColor(fillColor);
invalidate();
}
public void setFillColorResource(@ColorRes int fillColorRes) {
setFillColor(getContext().getResources().getColor(fillColorRes));
}
public int getBorderWidth() {
return mBorderWidth;
}
public void setBorderWidth(int borderWidth) {
if (borderWidth == mBorderWidth) {
return;
}
mBorderWidth = borderWidth;
setup();
}
public boolean isBorderOverlay() {
return mBorderOverlay;
}
public void setBorderOverlay(boolean borderOverlay) {
if (borderOverlay == mBorderOverlay) {
return;
}
mBorderOverlay = borderOverlay;
setup();
}
@Override
public void setImageBitmap(Bitmap bm) {
super.setImageBitmap(bm);
mBitmap = bm;
setup();
}
@Override
public void setImageDrawable(Drawable drawable) {
super.setImageDrawable(drawable);
mBitmap = getBitmapFromDrawable(drawable);
setup();
}
@Override
public void setImageResource(@DrawableRes int resId) {
super.setImageResource(resId);
mBitmap = getBitmapFromDrawable(getDrawable());
setup();
}
@Override
public void setImageURI(Uri uri) {
super.setImageURI(uri);
mBitmap = uri != null ? getBitmapFromDrawable(getDrawable()) : null;
setup();
}
@Override
public void setColorFilter(ColorFilter cf) {
if (cf == mColorFilter) {
return;
}
mColorFilter = cf;
applyColorFilter();
invalidate();
}
@Override
public ColorFilter getColorFilter() {
return mColorFilter;
}
private void applyColorFilter() {
if (mBitmapPaint != null) {
mBitmapPaint.setColorFilter(mColorFilter);
}
}
private Bitmap getBitmapFromDrawable(Drawable drawable) {
if (drawable == null) {
return null;
}
if (drawable instanceof BitmapDrawable) {
return ((BitmapDrawable) drawable).getBitmap();
}
try {
Bitmap bitmap;
if (drawable instanceof ColorDrawable) {
bitmap = Bitmap.createBitmap(COLORDRAWABLE_DIMENSION, COLORDRAWABLE_DIMENSION, BITMAP_CONFIG);
} else {
bitmap = Bitmap.createBitmap(drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight(), BITMAP_CONFIG);
}
Canvas canvas = new Canvas(bitmap);
drawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight());
drawable.draw(canvas);
return bitmap;
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
private void setup() {
if (!mReady) {
mSetupPending = true;
return;
}
if (getWidth() == 0 && getHeight() == 0) {
return;
}
if (mBitmap == null) {
invalidate();
return;
}
mBitmapShader = new BitmapShader(mBitmap, Shader.TileMode.CLAMP, Shader.TileMode.CLAMP);
mBitmapPaint.setAntiAlias(true);
mBitmapPaint.setShader(mBitmapShader);
mBorderPaint.setStyle(Paint.Style.STROKE);
mBorderPaint.setAntiAlias(true);
mBorderPaint.setColor(mBorderColor);
mBorderPaint.setStrokeWidth(mBorderWidth);
mFillPaint.setStyle(Paint.Style.FILL);
mFillPaint.setAntiAlias(true);
mFillPaint.setColor(mFillColor);
mBitmapHeight = mBitmap.getHeight();
mBitmapWidth = mBitmap.getWidth();
mBorderRect.set(0, 0, getWidth(), getHeight());
mBorderRadius = Math.min((mBorderRect.height() - mBorderWidth) / 2.0f, (mBorderRect.width() - mBorderWidth) / 2.0f);
mDrawableRect.set(mBorderRect);
if (!mBorderOverlay) {
mDrawableRect.inset(mBorderWidth, mBorderWidth);
}
mDrawableRadius = Math.min(mDrawableRect.height() / 2.0f, mDrawableRect.width() / 2.0f);
applyColorFilter();
updateShaderMatrix();
invalidate();
}
private void updateShaderMatrix() {
float scale;
float dx = 0;
float dy = 0;
mShaderMatrix.set(null);
if (mBitmapWidth * mDrawableRect.height() > mDrawableRect.width() * mBitmapHeight) {
scale = mDrawableRect.height() / (float) mBitmapHeight;
dx = (mDrawableRect.width() - mBitmapWidth * scale) * 0.5f;
} else {
scale = mDrawableRect.width() / (float) mBitmapWidth;
dy = (mDrawableRect.height() - mBitmapHeight * scale) * 0.5f;
}
mShaderMatrix.setScale(scale, scale);
mShaderMatrix.postTranslate((int) (dx + 0.5f) + mDrawableRect.left, (int) (dy + 0.5f) + mDrawableRect.top);
mBitmapShader.setLocalMatrix(mShaderMatrix);
}
@Override
public int[] onCreateDrawableState(int extraSpace) {
final int[] drawableState = super.onCreateDrawableState(extraSpace+1);
int [] state = { mStates[mStateIndex] };
mergeDrawableStates(drawableState, state);
return drawableState;
}
public void setOnStateChangedListener(OnStateChangeListener l) {
this.mListener = l;
}
@Override
public boolean onTouch(View v, MotionEvent event) {
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
Log.e("STATETOUCH", "onTouch: down");
mStateIndex = 1;
if(mListener != null) mListener.onStateChanged(mStates[1]);
return true;
case MotionEvent.ACTION_UP:
Log.e("STATETOUCH", "onTouch: up");
mStateIndex = 2;
if(mListener != null) mListener.onStateChanged(mStates[2]);
return false;
}
return false;
}
}
EDIT in attrs.xml:
and this in attrs.xml
<declare-styleable name="CircleImageView">
<attr name="civ_border_width" format="dimension" />
<attr name="civ_border_color" format="color" />
<attr name="civ_border_overlay" format="boolean" />
<attr name="civ_fill_color" format="color" />
<attr name="state_on" format="boolean" />
<attr name="state_off" format="boolean" />
</declare-styleable>
and use it like this in your code :
<com.yourpackagename.CircleImageView
android:layout_width="64dp"
android:layout_height="64dp"
android:id="@+id/img"
app:civ_border_width="1dp"
app:civ_border_color="#000"
android:src="@drawable/profile_pic"/>
and then in your code do the following:
yourImageView.setOnStateChangedListener(new OnStateChangeListener() {
@Override
public void onStateChanged(int state) {
switch (state){
case R.attr.state_on:
yourImageView.setBorderColor(Color.parseColor("#00ff00"));
break;
case R.attr.state_off:
yourImageView.setBorderColor(Color.parseColor("#ff00ff"));
//do anything you would do after onclick of this imageview here, like open a new activity.
break;
}
Log.e("STATECHANGE", "State changed to: " + context.getResources().getResourceEntryName(state));
}
});
reference : https://stackoverflow.com/a/21969864/2251837
As you can see this code works fine for me. Can you post your code, how you did it, then may be I will be able to help?
EDIT: This is what you need to change in your getView() method :
view.setOnTouchListener(new View.OnTouchListener() { // here view is this view : View view = inflater.inflate(type == List_Section ? R.layout.section : R.layout.listitem, parent, false);
@Override
public boolean onTouch(View v, MotionEvent event) {
small_profile.dispatchTouchEvent(event);
return false;
}
});