アプリケーションの円形画像ビューでFBプロファイル写真を表示する
FBからユーザーのプロフィール写真を取得してアプリに円形の画像で表示しようとしています。FacebookSDKが提供するProfilePictureViewウィジェットで表示写真を取得して表示できます。しかし、その画像のビットマップを取得して円形の画像ビューに配置しようとすると、デフォルトのFB表示画像が表示されます。これは、表示画像がない場合に全員に割り当てられます。この問題を解決できません。これは、ProfilePictureViewからビットマップを取得し、それを円形ビューに設定するために行うことです。
if (session == Session.getActiveSession()) {
if (user != null) {
// Set the id for the ProfilePictureView
// view that in turn displays the profile picture.
profilePictureView.setDrawingCacheEnabled(true);
profilePictureView.setProfileId(user.getId());
Bitmap bitmap = profilePictureView.getDrawingCache();
Bitmap circleBitmap = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Bitmap.Config.ARGB_8888);
BitmapShader shader = new BitmapShader (bitmap, TileMode.CLAMP, TileMode.CLAMP);
Paint paint = new Paint();
Paint.setShader(shader);
Canvas c = new Canvas(circleBitmap);
c.drawCircle(bitmap.getWidth()/2, bitmap.getHeight()/2, bitmap.getWidth()/2, Paint);
profilePic.setImageBitmap(circleBitmap);
//profilePictureView.draw(c);
//c.drawCircle(bitmap.getWidth()/2, bitmap.getHeight()/2, bitmap.getWidth()/2, Paint);
}
ここで、profilePicは私が円の形を配置しようとしているImageViewであり、profilePictureViewは表示画像を持つProfilePictureViewIDです。
Facebookのプロフィール写真ビューからコードを取得して少し変更しました。
コードは次のとおりです。
package com.myapp.mypackage.view;
/**
* Copyright 2010-present Facebook.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.Apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import Android.content.Context;
import Android.content.res.TypedArray;
import Android.graphics.Bitmap;
import Android.graphics.BitmapFactory;
import Android.graphics.Canvas;
import Android.graphics.Paint;
import Android.graphics.PorterDuff;
import Android.graphics.PorterDuffXfermode;
import Android.graphics.Rect;
import Android.graphics.RectF;
import Android.os.Bundle;
import Android.os.Parcelable;
import Android.util.AttributeSet;
import Android.util.Log;
import Android.util.TypedValue;
import Android.view.ViewGroup;
import Android.widget.FrameLayout;
import Android.widget.ImageView;
import com.facebook.FacebookException;
import com.facebook.LoggingBehavior;
import com.facebook.Android.R;
import com.facebook.internal.ImageDownloader;
import com.facebook.internal.ImageRequest;
import com.facebook.internal.ImageResponse;
import com.facebook.internal.Logger;
import com.facebook.internal.Utility;
import Java.net.URISyntaxException;
/**
* View that displays the profile photo of a supplied profile ID, while conforming
* to user specified dimensions.
*/
public class ProfilePictureView extends FrameLayout {
/**
* Callback interface that will be called when a network or other error is encountered
* while retrieving profile pictures.
*/
public interface OnErrorListener {
/**
* Called when a network or other error is encountered.
*
* @param error a FacebookException representing the error that was encountered.
*/
void onError(FacebookException error);
}
/**
* Tag used when logging calls are made by ProfilePictureView
*/
public static final String TAG = ProfilePictureView.class.getSimpleName();
/**
* Indicates that the specific size of the View will be set via layout params.
* ProfilePictureView will default to NORMAL X NORMAL, if the layout params set on
* this instance do not have a fixed size.
* Used in calls to setPresetSize() and getPresetSize().
* Corresponds with the preset_size Xml attribute that can be set on ProfilePictureView.
*/
public static final int CUSTOM = -1;
/**
* Indicates that the profile image should fit in a SMALL X SMALL space, regardless
* of whether the cropped or un-cropped version is chosen.
* Used in calls to setPresetSize() and getPresetSize().
* Corresponds with the preset_size Xml attribute that can be set on ProfilePictureView.
*/
public static final int SMALL = -2;
/**
* Indicates that the profile image should fit in a NORMAL X NORMAL space, regardless
* of whether the cropped or un-cropped version is chosen.
* Used in calls to setPresetSize() and getPresetSize().
* Corresponds with the preset_size Xml attribute that can be set on ProfilePictureView.
*/
public static final int NORMAL = -3;
/**
* Indicates that the profile image should fit in a LARGE X LARGE space, regardless
* of whether the cropped or un-cropped version is chosen.
* Used in calls to setPresetSize() and getPresetSize().
* Corresponds with the preset_size Xml attribute that can be set on ProfilePictureView.
*/
public static final int LARGE = -4;
private static final int MIN_SIZE = 1;
private static final boolean IS_CROPPED_DEFAULT_VALUE = true;
private static final String SUPER_STATE_KEY = "ProfilePictureView_superState";
private static final String PROFILE_ID_KEY = "ProfilePictureView_profileId";
private static final String PRESET_SIZE_KEY = "ProfilePictureView_presetSize";
private static final String IS_CROPPED_KEY = "ProfilePictureView_isCropped";
private static final String BITMAP_KEY = "ProfilePictureView_bitmap";
private static final String BITMAP_WIDTH_KEY = "ProfilePictureView_width";
private static final String BITMAP_HEIGHT_KEY = "ProfilePictureView_height";
private static final String PENDING_REFRESH_KEY = "ProfilePictureView_refresh";
private String profileId;
private int queryHeight = ImageRequest.UNSPECIFIED_DIMENSION;
private int queryWidth = ImageRequest.UNSPECIFIED_DIMENSION;
private boolean isCropped = IS_CROPPED_DEFAULT_VALUE;
private Bitmap imageContents;
private ImageView image;
private int presetSizeType = CUSTOM;
private ImageRequest lastRequest;
private OnErrorListener onErrorListener;
private Bitmap customizedDefaultProfilePicture = null;
/**
* Constructor
*
* @param context Context for this View
*/
public ProfilePictureView(Context context) {
super(context);
initialize(context);
}
/**
* Constructor
*
* @param context Context for this View
* @param attrs AttributeSet for this View.
* The attribute 'preset_size' is processed here
*/
public ProfilePictureView(Context context, AttributeSet attrs) {
super(context, attrs);
initialize(context);
parseAttributes(attrs);
}
/**
* Constructor
*
* @param context Context for this View
* @param attrs AttributeSet for this View.
* The attribute 'preset_size' is processed here
* @param defStyle Default style for this View
*/
public ProfilePictureView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
initialize(context);
parseAttributes(attrs);
}
/**
* Gets the current preset size type
*
* @return The current preset size type, if set; CUSTOM if not
*/
public final int getPresetSize() {
return presetSizeType;
}
/**
* Apply a preset size to this profile photo
*
* @param sizeType The size type to apply: SMALL, NORMAL or LARGE
*/
public final void setPresetSize(int sizeType) {
switch (sizeType) {
case SMALL:
case NORMAL:
case LARGE:
case CUSTOM:
this.presetSizeType = sizeType;
break;
default:
throw new IllegalArgumentException("Must use a predefined preset size");
}
requestLayout();
}
/**
* Indicates whether the cropped version of the profile photo has been chosen
*
* @return True if the cropped version is chosen, false if not.
*/
public final boolean isCropped() {
return isCropped;
}
/**
* Sets the profile photo to be the cropped version, or the original version
*
* @param showCroppedVersion True to select the cropped version
* False to select the standard version
*/
public final void setCropped(boolean showCroppedVersion) {
isCropped = showCroppedVersion;
// No need to force the refresh since we will catch the change in required dimensions
refreshImage(false);
}
/**
* Returns the profile Id for the current profile photo
*
* @return The profile Id
*/
public final String getProfileId() {
return profileId;
}
/**
* Sets the profile Id for this profile photo
*
* @param profileId The profileId
* NULL/Empty String will show the blank profile photo
*/
public final void setProfileId(String profileId) {
boolean force = false;
if (Utility.isNullOrEmpty(this.profileId) || !this.profileId.equalsIgnoreCase(profileId)) {
// Clear out the old profilePicture before requesting for the new one.
setBlankProfilePicture();
force = true;
}
this.profileId = profileId;
refreshImage(force);
}
/**
* Returns the current OnErrorListener for this instance of ProfilePictureView
*
* @return The OnErrorListener
*/
public final OnErrorListener getOnErrorListener() {
return onErrorListener;
}
/**
* Sets an OnErrorListener for this instance of ProfilePictureView to call into when
* certain exceptions occur.
*
* @param onErrorListener The Listener object to set
*/
public final void setOnErrorListener(OnErrorListener onErrorListener) {
this.onErrorListener = onErrorListener;
}
/**
* The ProfilePictureView will display the provided image while the specified
* profile is being loaded, or if the specified profile is not available.
*
* @param inputBitmap The bitmap to render until the actual profile is loaded.
*/
public final void setDefaultProfilePicture(Bitmap inputBitmap) {
customizedDefaultProfilePicture = inputBitmap;
}
/**
* Overriding onMeasure to handle the case where WRAP_CONTENT might be
* specified in the layout. Since we don't know the dimensions of the profile
* photo, we need to handle this case specifically.
* <p/>
* The approach is to default to a NORMAL sized amount of space in the case that
* a preset size is not specified. This logic is applied to both width and height
*/
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
ViewGroup.LayoutParams params = getLayoutParams();
boolean customMeasure = false;
int newHeight = MeasureSpec.getSize(heightMeasureSpec);
int newWidth = MeasureSpec.getSize(widthMeasureSpec);
if (MeasureSpec.getMode(heightMeasureSpec) != MeasureSpec.EXACTLY &&
params.height == ViewGroup.LayoutParams.WRAP_CONTENT) {
newHeight = getPresetSizeInPixels(true); // Default to a preset size
heightMeasureSpec = MeasureSpec.makeMeasureSpec(newHeight, MeasureSpec.EXACTLY);
customMeasure = true;
}
if (MeasureSpec.getMode(widthMeasureSpec) != MeasureSpec.EXACTLY &&
params.width == ViewGroup.LayoutParams.WRAP_CONTENT) {
newWidth = getPresetSizeInPixels(true); // Default to a preset size
widthMeasureSpec = MeasureSpec.makeMeasureSpec(newWidth, MeasureSpec.EXACTLY);
customMeasure = true;
}
if (customMeasure) {
// Since we are providing custom dimensions, we need to handle the measure
// phase from here
setMeasuredDimension(newWidth, newHeight);
measureChildren(widthMeasureSpec, heightMeasureSpec);
} else {
// Rely on FrameLayout to do the right thing
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
}
}
/**
* In addition to calling super.Layout(), we also attempt to get a new image that
* is properly size for the layout dimensions
*/
@Override
protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
super.onLayout(changed, left, top, right, bottom);
// See if the image needs redrawing
refreshImage(false);
}
/**
* Some of the current state is returned as a Bundle to allow quick restoration
* of the ProfilePictureView object in scenarios like orientation changes.
*
* @return a Parcelable containing the current state
*/
@Override
protected Parcelable onSaveInstanceState() {
Parcelable superState = super.onSaveInstanceState();
Bundle instanceState = new Bundle();
instanceState.putParcelable(SUPER_STATE_KEY, superState);
instanceState.putString(PROFILE_ID_KEY, profileId);
instanceState.putInt(PRESET_SIZE_KEY, presetSizeType);
instanceState.putBoolean(IS_CROPPED_KEY, isCropped);
instanceState.putParcelable(BITMAP_KEY, imageContents);
instanceState.putInt(BITMAP_WIDTH_KEY, queryWidth);
instanceState.putInt(BITMAP_HEIGHT_KEY, queryHeight);
instanceState.putBoolean(PENDING_REFRESH_KEY, lastRequest != null);
return instanceState;
}
/**
* If the passed in state is a Bundle, an attempt is made to restore from it.
*
* @param state a Parcelable containing the current state
*/
@Override
protected void onRestoreInstanceState(Parcelable state) {
if (state.getClass() != Bundle.class) {
super.onRestoreInstanceState(state);
} else {
Bundle instanceState = (Bundle) state;
super.onRestoreInstanceState(instanceState.getParcelable(SUPER_STATE_KEY));
profileId = instanceState.getString(PROFILE_ID_KEY);
presetSizeType = instanceState.getInt(PRESET_SIZE_KEY);
isCropped = instanceState.getBoolean(IS_CROPPED_KEY);
queryWidth = instanceState.getInt(BITMAP_WIDTH_KEY);
queryHeight = instanceState.getInt(BITMAP_HEIGHT_KEY);
setImageBitmap((Bitmap) instanceState.getParcelable(BITMAP_KEY));
if (instanceState.getBoolean(PENDING_REFRESH_KEY)) {
refreshImage(true);
}
}
}
@Override
protected void onDetachedFromWindow() {
super.onDetachedFromWindow();
// Null out lastRequest. This way, when the response is returned, we can ascertain
// that the view is detached and hence should not attempt to update its contents.
lastRequest = null;
}
private void initialize(Context context) {
// We only want our ImageView in here. Nothing else is permitted
removeAllViews();
image = new ImageView(context);
LayoutParams imageLayout = new LayoutParams(
LayoutParams.MATCH_PARENT,
LayoutParams.MATCH_PARENT);
image.setLayoutParams(imageLayout);
// We want to prevent up-scaling the image, but still have it fit within
// the layout bounds as best as possible.
image.setScaleType(ImageView.ScaleType.CENTER_INSIDE);
addView(image);
}
private void parseAttributes(AttributeSet attrs) {
TypedArray a = getContext().obtainStyledAttributes(attrs, R.styleable.com_facebook_profile_picture_view);
setPresetSize(a.getInt(R.styleable.com_facebook_profile_picture_view_preset_size, CUSTOM));
isCropped = a.getBoolean(R.styleable.com_facebook_profile_picture_view_is_cropped, IS_CROPPED_DEFAULT_VALUE);
a.recycle();
}
private void refreshImage(boolean force) {
boolean changed = updateImageQueryParameters();
// Note: do not use Utility.isNullOrEmpty here as this will cause the Eclipse
// Graphical Layout editor to fail in some cases
if (profileId == null || profileId.length() == 0 ||
((queryWidth == ImageRequest.UNSPECIFIED_DIMENSION) &&
(queryHeight == ImageRequest.UNSPECIFIED_DIMENSION))) {
setBlankProfilePicture();
} else if (changed || force) {
sendImageRequest(true);
}
}
private void setBlankProfilePicture() {
if (customizedDefaultProfilePicture == null) {
int blankImageResource = isCropped() ?
R.drawable.com_facebook_profile_picture_blank_square :
R.drawable.com_facebook_profile_picture_blank_portrait;
setImageBitmap(BitmapFactory.decodeResource(getResources(), blankImageResource));
} else {
// Update profile image dimensions.
updateImageQueryParameters();
// Resize inputBitmap to new dimensions of queryWidth and queryHeight.
Bitmap scaledBitmap = Bitmap.createScaledBitmap(customizedDefaultProfilePicture, queryWidth, queryHeight, false);
setImageBitmap(scaledBitmap);
}
}
private void setImageBitmap(Bitmap imageBitmap) {
if (image != null && imageBitmap != null) {
imageContents = imageBitmap; // Hold for save-restore cycles
image.setImageBitmap(ProfilePictureView.getRoundedBitmap(imageBitmap));
}
}
private void sendImageRequest(boolean allowCachedResponse) {
try {
ImageRequest.Builder requestBuilder = new ImageRequest.Builder(
getContext(),
ImageRequest.getProfilePictureUrl(profileId, queryWidth, queryHeight));
ImageRequest request = requestBuilder.setAllowCachedRedirects(allowCachedResponse)
.setCallerTag(this)
.setCallback(
new ImageRequest.Callback() {
@Override
public void onCompleted(ImageResponse response) {
processResponse(response);
}
}
)
.build();
// Make sure to cancel the old request before sending the new one to prevent
// accidental cancellation of the new request. This could happen if the URL and
// caller tag stayed the same.
if (lastRequest != null) {
ImageDownloader.cancelRequest(lastRequest);
}
lastRequest = request;
ImageDownloader.downloadAsync(request);
} catch (URISyntaxException e) {
Logger.log(LoggingBehavior.REQUESTS, Log.ERROR, TAG, e.toString());
}
}
private void processResponse(ImageResponse response) {
// First check if the response is for the right request. We may have:
// 1. Sent a new request, thus super-ceding this one.
// 2. Detached this view, in which case the response should be discarded.
if (response.getRequest() == lastRequest) {
lastRequest = null;
Bitmap responseImage = response.getBitmap();
Exception error = response.getError();
if (error != null) {
OnErrorListener listener = onErrorListener;
if (listener != null) {
listener.onError(new FacebookException(
"Error in downloading profile picture for profileId: " + getProfileId(), error));
} else {
Logger.log(LoggingBehavior.REQUESTS, Log.ERROR, TAG, error.toString());
}
} else if (responseImage != null) {
setImageBitmap(responseImage);
if (response.isCachedRedirect()) {
sendImageRequest(false);
}
}
}
}
private boolean updateImageQueryParameters() {
int newHeightPx = getHeight();
int newWidthPx = getWidth();
if (newWidthPx < MIN_SIZE || newHeightPx < MIN_SIZE) {
// Not enough space laid out for this View yet. Or something else is awry.
return false;
}
int presetSize = getPresetSizeInPixels(false);
if (presetSize != ImageRequest.UNSPECIFIED_DIMENSION) {
newWidthPx = presetSize;
newHeightPx = presetSize;
}
// The cropped version is square
// If full version is desired, then only one dimension is required.
if (newWidthPx <= newHeightPx) {
newHeightPx = isCropped() ? newWidthPx : ImageRequest.UNSPECIFIED_DIMENSION;
} else {
newWidthPx = isCropped() ? newHeightPx : ImageRequest.UNSPECIFIED_DIMENSION;
}
boolean changed = (newWidthPx != queryWidth) || (newHeightPx != queryHeight);
queryWidth = newWidthPx;
queryHeight = newHeightPx;
return changed;
}
private int getPresetSizeInPixels(boolean forcePreset) {
int dimensionId;
switch (presetSizeType) {
case SMALL:
dimensionId = R.dimen.com_facebook_profilepictureview_preset_size_small;
break;
case NORMAL:
dimensionId = R.dimen.com_facebook_profilepictureview_preset_size_normal;
break;
case LARGE:
dimensionId = R.dimen.com_facebook_profilepictureview_preset_size_large;
break;
case CUSTOM:
if (!forcePreset) {
return ImageRequest.UNSPECIFIED_DIMENSION;
} else {
dimensionId = R.dimen.com_facebook_profilepictureview_preset_size_normal;
break;
}
default:
return ImageRequest.UNSPECIFIED_DIMENSION;
}
return getResources().getDimensionPixelSize(dimensionId);
}
public static Bitmap getRoundedBitmap(Bitmap bitmap) {
Bitmap output = Bitmap.createBitmap(bitmap.getWidth(), bitmap
.getHeight(), Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(output);
final int color = 0xff424242;
final Paint paint = new Paint();
final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());
final RectF rectF = new RectF(rect);
Paint.setAntiAlias(true);
canvas.drawARGB(0, 0, 0, 0);
Paint.setColor(color);
canvas.drawOval(rectF, Paint);
Paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
canvas.drawBitmap(bitmap, rect, rect, Paint);
return output;
}
}
下部に新しいメソッドが表示されます：getRoundedBitmap
ここで説明されているように： FrameLayout、あなたの最高のUIフレンド FrameLayoutを使用して、画像の上に描画可能なものを配置できます。特に、ProfilePictureViewの上に画像またはSVGパス（APIレベル21以上）を配置できます。
たとえば、次のレイアウトを使用できます。
<FrameLayout
Android:layout_width="match_parent"
Android:layout_height="match_parent"
Android:layout_alignParentTop="true"
Android:layout_alignParentRight="true"
Android:layout_alignParentEnd="true"
Android:layout_alignParentLeft="true"
Android:layout_alignParentStart="true">
<com.facebook.login.widget.ProfilePictureView
Android:id="@+id/profile_picture"
Android:layout_width="160dp"
Android:layout_height="160dp"></com.facebook.login.widget.ProfilePictureView>
<ImageView
Android:id="@+id/Android"
Android:layout_width="160dp"
Android:layout_height="160dp"
Android:src="@drawable/subtracted_circle"
Android:contentDescription="@null" />
</FrameLayout>
減算された円を持つ長方形を表す次のSVGパスとともに：
<?xml version="1.0" encoding="utf-8"?>
<!-- res/drawable/subtracted_circle.xml -->
<vector xmlns:Android="http://schemas.Android.com/apk/res/Android"
Android:height="160dp"
Android:width="160dp"
Android:viewportWidth="48"
Android:viewportHeight="48">
<group Android:name="subtracted_circle">
<path
Android:pathData="M 0,0 0,24 C 0,10.745166 10.745166,0 24,0 L 0,0 z M 24,0 C 37.254834,0 48,10.745166 48,24 L 48,0 24,0 z M 48,24 C 48,37.254834 37.254834,48 24,48 l 24,0 0,-24 z M 24,48 C 10.745166,48 0,37.254834 0,24 l 0,24 24,0 z"
Android:strokeWidth="0"
Android:fillColor="@color/background_floating_material_light"
Android:strokeMiterLimit="4"/>
</group>
</vector>
そして、あなたはこのようなものを手に入れるでしょう：
FrameLayoutアプローチを使用して、いくつかのPNGファイル（中央に透明度がある）でgusridd回答を適応させることができます。ベクター（API +21）を使用する代わりに、drawable/extract_circleはres/drawable /subtracted_circle.pngのファイルになります。このファイルを生成する必要がある場合でも、任意の形状を使用できます。また、画像の背景と同じ色を使用する必要があります。
<FrameLayout
Android:layout_width="match_parent"
Android:layout_height="match_parent"
Android:layout_alignParentTop="true"
Android:layout_alignParentRight="true"
Android:layout_alignParentEnd="true"
Android:layout_alignParentLeft="true"
Android:layout_alignParentStart="true">
<com.facebook.login.widget.ProfilePictureView
Android:id="@+id/profile_picture"
Android:layout_width="160dp"
Android:layout_height="160dp"></com.facebook.login.widget.ProfilePictureView>
<ImageView
Android:id="@+id/Android"
Android:layout_width="160dp"
Android:layout_height="160dp"
Android:src="@drawable/subtracted_circle"
Android:contentDescription="@null" />
</FrameLayout>
ここで役立つ実用的なコードを見つけました。それが役に立てば幸い。 http://curious-blog.blogspot.in/2014/05/create-circle-bitmap-in-Android.html
activity_main.xml
<LinearLayout xmlns:Android="http://schemas.Android.com/apk/res/Android"
xmlns:tools="http://schemas.Android.com/tools"
Android:id="@+id/container"
Android:layout_width="match_parent"
Android:layout_height="match_parent"
Android:gravity="center"
Android:background="@Android:color/darker_gray"
tools:context="com.example.circlebitmaptest.MainActivity" >
<ImageView
Android:id="@+id/image"
Android:layout_width="200dp"
Android:layout_height="200dp"
Android:scaleType="fitXY"/>
</LinearLayout>
getCircleBitmap関数
private Bitmap getCircleBitmap(Bitmap bitmap) {
final Bitmap output = Bitmap.createBitmap(bitmap.getWidth(),
bitmap.getHeight(), Bitmap.Config.ARGB_8888);
final Canvas canvas = new Canvas(output);
final int color = Color.RED;
final Paint paint = new Paint();
final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());
final RectF rectF = new RectF(rect);
Paint.setAntiAlias(true);
canvas.drawARGB(0, 0, 0, 0);
Paint.setColor(color);
canvas.drawOval(rectF, Paint);
Paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
canvas.drawBitmap(bitmap, rect, rect, Paint);
bitmap.recycle();
return output;
}
MainActivityクラス
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// create bitmap from resource
Bitmap bm = BitmapFactory.decodeResource(getResources(),
R.drawable.simple_image);
// set circle bitmap
ImageView mImage = (ImageView) findViewById(R.id.image);
mImage.setImageBitmap(getCircleBitmap(bm));
}
Facebookの円形のプロフィール画像を表示するためのオプションを調査するのにかなりの時間を費やしました。Android SDKを脇に置いて、既存の画像ライブラリの変換を活用するのが最も簡単だと思います。
FacebookのProfilePictureViewを使用する代わりに、ImageViewを使用します。次に、ピカソ、グライド、または任意のライブラリを使用して画像を読み込みます。以下では、Picasso-TransformationsでPicassoを使用しています。
今：
ImageView profilePic = (ImageView) findViewById(R.id.ivProfilePic);
Picasso.with(this)
.load("https://graph.facebook.com/v2.2/" + user.getUserId() + "/picture?height=120&type=normal") //extract as User instance method
.transform(new CropCircleTransformation())
.resize(120, 120)
.into(profilePic);
前：
ProfilePictureView profilePic = (ProfilePictureView)findViewById(R.id.ivProfilePic);
profilePic.setProfileId(user.getUserId());
//custom transformation code
PHPでのこれに対する私の解決策はこれでした：