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Cómo agregar una sombra y un borde en imageView circular Android?

Question

Creé un CircularImageView con esta pregunta: Crear vista de imagen circular en Android

Descargar proyecto en GitHub

1) Esta es la clase CircularImageView:

public class CircularImageView extends ImageView {
public CircularImageView(Context context) {
super(context);
}
public CircularImageView(Context context, AttributeSet attrs) {
super(context, attrs);
}
public CircularImageView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
@Override
protected void onDraw(Canvas canvas) {
Drawable drawable = getDrawable();
if (drawable == null) {
return;
}
if (getWidth() == 0 || getHeight() == 0) {
return;
}
Bitmap b = ((BitmapDrawable)drawable).getBitmap() ;
Bitmap bitmap = b.copy(Bitmap.Config.ARGB_8888, true);
Bitmap roundBitmap = getCroppedBitmap(bitmap, getWidth());
canvas.drawBitmap(roundBitmap, 0, 0, null);
}
public static Bitmap getCroppedBitmap(Bitmap bmp, int radius) {
Bitmap sbmp;
if(bmp.getWidth() != radius || bmp.getHeight() != radius)
sbmp = Bitmap.createScaledBitmap(bmp, radius, radius, false);
else
sbmp = bmp;
Bitmap output = Bitmap.createBitmap(sbmp.getWidth(), sbmp.getHeight(), Bitmap.Config.ARGB_8888);
final Rect rect = new Rect(0, 0, sbmp.getWidth(), sbmp.getHeight());
Paint paint = new Paint();
paint.setAntiAlias(true);
paint.setFilterBitmap(true);
paint.setDither(true);
paint.setColor(Color.parseColor("#BAB399"));
Canvas c = new Canvas(output);
c.drawARGB(0, 0, 0, 0);
c.drawCircle(sbmp.getWidth() / 2+0.7f, sbmp.getHeight() / 2+0.7f, sbmp.getWidth() / 2+0.1f, paint);
paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));
c.drawBitmap(sbmp, rect, rect, paint);
return output;
}
}

2) Uso en mi diseño de esta manera:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#cccccc"
android:gravity="center"
android:orientation="vertical"
android:padding="10dp" >
<com.mikhaellopez.circularimageview.CircularImageView
android:id="@+id/imageViewCircular"
android:layout_width="@dimen/image_view_size"
android:layout_height="@dimen/image_view_size"
android:layout_gravity="center"
android:background="@drawable/border"
android:src="@drawable/image" />
</LinearLayout>

3) resultado actual en la imagen:

¿Cómo cambio este código para tener una sombra y un borde circular alrededor de mi imageView?

Resultado Objectif:

Editar 15/10/2015:

Puede utilizar o descargar mi biblioteca GitHub GitHub con todas las correcciones usando la dependencia gradle :

compile ''com.mikhaellopez:circularimageview:2.0.1''

Answer 1

1. Añada canvas.drawCircle(getWidth() / 2, getWidth() / 2, getWidth() / 2, paint); antes de canvas.drawBitmap(roundBitmap, 0, 0, null);
2. Cambie c.drawCircle(sbmp.getWidth() / 2, sbmp.getHeight() / 2, sbmp.getWidth() / 2, paint); a c.drawCircle(sbmp.getWidth() / 2, sbmp.getHeight() / 2, sbmp.getWidth() / 2 - "the border with you prefer", paint);

Espero eso ayude.

Quizás una mejor solución aquí .

Answer 2

Cree un dibujable personalizado y utilícelo para definir su atributo de fondo de su ImageView. Puede usar un LayeredDrawable para crear tantos componentes diferentes para el componente como desee.

Verifique esta respuesta, que crea un rectángulo personalizado (pero es exactamente lo mismo con un círculo oval): ¿cómo crear la interfaz de usuario de tarjetas de Google + en una vista de lista?

Answer 3

Encontré una biblioteca que haciendo exactamente lo que deseaste funcionó bien para mí. Echale un vistazo. https://android-arsenal.com/details/1/932

Answer 4

Esta clase es una vista de imagen circular personalizada con sombra, trazo, saturación y con esta vista circular de imagen personalizada puede hacer que su imagen tenga forma circular con radio. Chicos para Circular Shadow ImageView No es necesario Github esta clase es suficiente.

Agregar CircularImageView a su diseño

// Bitmap myimage = BitmapFactory.decodeResource (getResources (), R.drawable.pic); CircularImageView c = new CircularImageView (esto, ancho de pantalla, altura de pantalla, myimage Bitmap); yourLayout.addView (c); **

public class CircularImageView extends android.support.v7.widget.AppCompatImageView
{
private final Context context;
private final int width, height;
private final Paint paint;
private final Paint paintBorder,imagePaint;
private final Bitmap bitmap2;
private final Paint paint3;
private Bitmap bitmap;
private BitmapShader shader;
private float radius = 4.0f;
float x = 0.0f;
float y = 8.0f;
private float stroke;
private float strokeWidth = 0.0f;
private Bitmap bitmap3;
private int corner_radius=50;
public CircularImageView(Context context, int width, int height, Bitmap bitmap) {
super(context);
this.context = context;
this.width = width;
this.height = height;
//here "bitmap" is the square shape(width* width) scaled bitmap ..
this.bitmap = bitmap;
paint = new Paint(Paint.ANTI_ALIAS_FLAG);
paint.setAntiAlias(true);
paint.setFilterBitmap(true);
paint.setDither(true);
paint3=new Paint();
paint3.setStyle(Paint.Style.STROKE);
paint3.setColor(Color.WHITE);
paint3.setAntiAlias(true);
paintBorder = new Paint();
imagePaint= new Paint();
paintBorder.setColor(Color.WHITE);
paintBorder.setAntiAlias(true);
this.setLayerType(LAYER_TYPE_SOFTWARE, paintBorder);
this.bitmap2 = Bitmap.createScaledBitmap(bitmap, (bitmap.getWidth() - 40), (bitmap.getHeight() - 40), true);
imagePaint.setAntiAlias(true);
invalidate();
}
@Override
protected void onDraw(Canvas canvas)
{
super.onDraw(canvas);
Shader b;
if (bitmap3 != null)
b = new BitmapShader(bitmap3, Shader.TileMode.CLAMP, Shader.TileMode.CLAMP);
else
b = new BitmapShader(bitmap2, Shader.TileMode.CLAMP, Shader.TileMode.CLAMP);
imagePaint.setShader(b);
canvas.drawBitmap(maskedBitmap(), 20, 20, null);
}
private Bitmap maskedBitmap()
{
Bitmap l1 = Bitmap.createBitmap(width,width, Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(l1);
paintBorder.setShadowLayer(radius, x, y, Color.parseColor("#454645"));
paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
final RectF rect = new RectF();
rect.set(20, 20, bitmap2.getWidth(), bitmap2.getHeight());
canvas.drawRoundRect(rect, corner_radius, corner_radius, paintBorder);
canvas.drawRoundRect(rect, corner_radius, corner_radius, imagePaint);
if (strokeWidth!=0.0f)
{
paint3.setStrokeWidth(strokeWidth);
canvas.drawRoundRect(rect, corner_radius, corner_radius, paint3);
}
paint.setXfermode(null);
return l1;
}
// use seekbar here, here you have to pass "0 -- 250" here corner radius will change
public void setCornerRadius(int corner_radius)
{
this.corner_radius = corner_radius;
invalidate();
}
-------->use seekbar here, here you have to pass "0 -- 10.0f" here shadow radius will change
public void setShadow(float radius)
{
this.radius = radius;
invalidate();
}
// use seekbar here, here you have to pass "0 -- 10.0f" here stroke size will change
public void setStroke(float stroke)
{
this.strokeWidth = stroke;
invalidate();
}
private Bitmap updateSat(Bitmap src, float settingSat)
{
int w = src.getWidth();
int h = src.getHeight();
Bitmap bitmapResult =
Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888);
Canvas canvasResult = new Canvas(bitmapResult);
Paint paint = new Paint();
ColorMatrix colorMatrix = new ColorMatrix();
colorMatrix.setSaturation(settingSat);
ColorMatrixColorFilter filter = new ColorMatrixColorFilter(colorMatrix);
paint.setColorFilter(filter);
canvasResult.drawBitmap(src, 0, 0, paint);
return bitmapResult;
}
// use seekbar here, here you have to pass "0 -- 2.0f" here saturation will change
public void setSaturation(float sat)
{
System.out.println("qqqqqqqqqq "+sat);
bitmap3=updateSat(bitmap2, sat);
invalidate();
}
}
// Seekbar to change radius
radius_seekbar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
@Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser)
{
text_radius.setText(""+progress);
circularImageView.setCornerRadius(progress);
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
}
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
}
});
// Seekbar to change shadow
shadow_seekbar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
@Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser)
{
float f= 4+progress/10.0f;
text_shadow.setText(""+progress);
circularImageView.setShadow(f);
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
}
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
}
});
// Seekbar to change saturation
saturation_seekbar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
@Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser)
{
int progressSat = saturation_seekbar.getProgress();
float sat = (float) ((progressSat*4 / 100.0f)-1.0f);
circularImageView.setSaturation(sat);
text_saturation.setText(""+progressSat);
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
}
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
}
});
// Seekbar to change stroke
stroke_seekbar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
@Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser)
{
if (progress==0)
{
float f=(progress*10.0f/100.0f);
circularImageView.setStroke(f);
}
else
{
float f=(progress*10.0f/100.0f);
circularImageView.setStroke(f);
}
text_stroke.setText(""+progress);
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
}
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
}
});
//radius seekbar in xml file
<SeekBar
android:layout_width="match_parent"
android:layout_gravity="center"
android:progress="50"
android:max="250"
android:id="@+id/radius_seekbar"
android:layout_height="wrap_content" />
//saturation seekbar in xml file
<SeekBar
android:layout_width="match_parent"
android:layout_gravity="center"
android:progress="50"
android:max="100"
android:id="@+id/saturation_seekbar"
android:layout_height="wrap_content" />
//shadow seekbar in xml file
<SeekBar
android:layout_width="match_parent"
android:layout_gravity="center"
android:progress="0"
android:max="100"
android:id="@+id/shadow_seekbar"
android:layout_height="wrap_content" />
//stroke seekbar in xml file
<SeekBar
android:layout_width="match_parent"
android:layout_gravity="center"
android:progress="0"
android:max="100"
android:id="@+id/stroke _seekbar"
android:layout_height="wrap_content" />

Answer 5

Modifiqué la CircularImageView que se encuentra aquí para lograr lo que quieres.

Para crear una sombra alrededor del borde, simplemente usé estas dos líneas:

this.setLayerType(LAYER_TYPE_SOFTWARE, paintBorder);
paintBorder.setShadowLayer(4.0f, 0.0f, 2.0f, Color.BLACK);

Necesita setLayerType debido a la aceleración de hardware en HoneyComb y superior. No funcionó sin eso cuando lo probé.

Aquí está el código completo:

import android.annotation.SuppressLint;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapShader;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Shader;
import android.graphics.drawable.BitmapDrawable;
import android.util.AttributeSet;
import android.widget.ImageView;
public class CircularImageView extends ImageView
{
private int borderWidth = 4;
private int viewWidth;
private int viewHeight;
private Bitmap image;
private Paint paint;
private Paint paintBorder;
private BitmapShader shader;
public CircularImageView(Context context)
{
super(context);
setup();
}
public CircularImageView(Context context, AttributeSet attrs)
{
super(context, attrs);
setup();
}
public CircularImageView(Context context, AttributeSet attrs, int defStyle)
{
super(context, attrs, defStyle);
setup();
}
private void setup()
{
// init paint
paint = new Paint();
paint.setAntiAlias(true);
paintBorder = new Paint();
setBorderColor(Color.WHITE);
paintBorder.setAntiAlias(true);
this.setLayerType(LAYER_TYPE_SOFTWARE, paintBorder);
paintBorder.setShadowLayer(4.0f, 0.0f, 2.0f, Color.BLACK);
}
public void setBorderWidth(int borderWidth)
{
this.borderWidth = borderWidth;
this.invalidate();
}
public void setBorderColor(int borderColor)
{
if (paintBorder != null)
paintBorder.setColor(borderColor);
this.invalidate();
}
private void loadBitmap()
{
BitmapDrawable bitmapDrawable = (BitmapDrawable) this.getDrawable();
if (bitmapDrawable != null)
image = bitmapDrawable.getBitmap();
}
@SuppressLint("DrawAllocation")
@Override
public void onDraw(Canvas canvas)
{
// load the bitmap
loadBitmap();
// init shader
if (image != null)
{
shader = new BitmapShader(Bitmap.createScaledBitmap(image, canvas.getWidth(), canvas.getHeight(), false), Shader.TileMode.CLAMP, Shader.TileMode.CLAMP);
paint.setShader(shader);
int circleCenter = viewWidth / 2;
// circleCenter is the x or y of the view''s center
// radius is the radius in pixels of the cirle to be drawn
// paint contains the shader that will texture the shape
canvas.drawCircle(circleCenter + borderWidth, circleCenter + borderWidth, circleCenter + borderWidth - 4.0f, paintBorder);
canvas.drawCircle(circleCenter + borderWidth, circleCenter + borderWidth, circleCenter - 4.0f, paint);
}
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec)
{
int width = measureWidth(widthMeasureSpec);
int height = measureHeight(heightMeasureSpec, widthMeasureSpec);
viewWidth = width - (borderWidth * 2);
viewHeight = height - (borderWidth * 2);
setMeasuredDimension(width, height);
}
private int measureWidth(int measureSpec)
{
int result = 0;
int specMode = MeasureSpec.getMode(measureSpec);
int specSize = MeasureSpec.getSize(measureSpec);
if (specMode == MeasureSpec.EXACTLY)
{
// We were told how big to be
result = specSize;
}
else
{
// Measure the text
result = viewWidth;
}
return result;
}
private int measureHeight(int measureSpecHeight, int measureSpecWidth)
{
int result = 0;
int specMode = MeasureSpec.getMode(measureSpecHeight);
int specSize = MeasureSpec.getSize(measureSpecHeight);
if (specMode == MeasureSpec.EXACTLY)
{
// We were told how big to be
result = specSize;
}
else
{
// Measure the text (beware: ascent is a negative number)
result = viewHeight;
}
return (result + 2);
}
}

¡Espero que ayude!

.

EDITAR

Bifurqué su CircularImageView y agregué soporte para superposiciones de selector. También mejoré el rendimiento del dibujo significativamente ...

https://github.com/Pkmmte/CircularImageView

Answer 6

Para agregar un borde haciendo ImageView como un círculo, he hecho algo simple, utilicé esta clase para hacer que mi imagen sea un círculo

package com.fidenz.fexceller.fexceller;
/**
* Created by Chathu Hettiarachchi on 5/18/2015.
*/
import android.graphics.Bitmap;
import android.graphics.BitmapShader;
import android.graphics.Canvas;
import android.graphics.ColorFilter;
import android.graphics.Paint;
import android.graphics.PixelFormat;
import android.graphics.Rect;
import android.graphics.RectF;
import android.graphics.Shader;
import android.graphics.drawable.Drawable;
public class RoundedImg extends Drawable {
private final Bitmap mBitmap;
private final Paint mPaint;
private final RectF mRectF;
private final int mBitmapWidth;
private final int mBitmapHeight;
public RoundedImg(Bitmap bitmap) {
mBitmap = bitmap;
mRectF = new RectF();
mPaint = new Paint();
mPaint.setAntiAlias(true);
mPaint.setDither(true);
final BitmapShader shader = new BitmapShader(bitmap, Shader.TileMode.CLAMP, Shader.TileMode.CLAMP);
mPaint.setShader(shader);
mBitmapWidth = mBitmap.getWidth();
mBitmapHeight = mBitmap.getHeight();
}
@Override
public void draw(Canvas canvas) {
canvas.drawOval(mRectF, mPaint);
}
@Override
protected void onBoundsChange(Rect bounds) {
super.onBoundsChange(bounds);
mRectF.set(bounds);
}
@Override
public void setAlpha(int alpha) {
if (mPaint.getAlpha() != alpha) {
mPaint.setAlpha(alpha);
invalidateSelf();
}
}
@Override
public void setColorFilter(ColorFilter cf) {
mPaint.setColorFilter(cf);
}
@Override
public int getOpacity() {
return PixelFormat.TRANSLUCENT;
}
@Override
public int getIntrinsicWidth() {
return mBitmapWidth;
}
@Override
public int getIntrinsicHeight() {
return mBitmapHeight;
}
public void setAntiAlias(boolean aa) {
mPaint.setAntiAlias(aa);
invalidateSelf();
}
@Override
public void setFilterBitmap(boolean filter) {
mPaint.setFilterBitmap(filter);
invalidateSelf();
}
@Override
public void setDither(boolean dither) {
mPaint.setDither(dither);
invalidateSelf();
}
public Bitmap getBitmap() {
return mBitmap;
}
}

y al usar esto en onCreate he llamado a la imagen para configurarlo,

profilePic = (ImageView)findViewById(R.id.img_home_profile_pic);
Bitmap bm = BitmapFactory.decodeResource(getResources(), R.drawable.no_image);
roundedImage = new RoundedImg(bm);
profilePic.setImageDrawable(roundedImage);

para agregar un borde, creé un XML de forma de círculo como este,

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="oval" >
<gradient android:startColor="@color/ring_color" android:endColor="@color/ring_color"
android:angle="270"/>
</shape>

Luego, usando diseños, agregué un RelativeLayout con ImageView dentro de él, usando relleno y fondo wrap_content con wrap_content . Establecí mi RelativeLayout como este

<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/lay_rel_img"
android:layout_gravity="center"
android:padding="5dp"
android:background="@drawable/circle">
<ImageView
android:layout_width="150dp"
android:layout_height="150dp"
android:layout_gravity="center"
android:id="@+id/img_home_profile_pic"
android:src="@drawable/no_image"
android:layout_centerHorizontal="true"/>
</RelativeLayout>

ahora se muestra así, no sé agregar la sombra, lo siento por eso también

Answer 7

simplemente use el método drawCircle () con más ancho y alto antes de dibujar la imagen real. Aumente el ancho y alto de esa nueva llamada de método de acuerdo con su deseo, y configure otro color que desee en la pintura