以前我得到这样的 Facebook 用户个人资料图片,直到最近一切正常。
但是现在每次都返回null。
这是网址:
"http://graph.facebook.com/"+userID+"/picture?height=100&type=normal&width=100"
这会不会是因为来自 Facebook 的重定向?因为如果您在浏览器中打开此 URL,您将被重定向到类似这样的内容:https://fbcdn-profile-a.akamaihd.net/......
。
有办法解决这个问题吗?
这是我的异步任务:
public class GetUserPicture extends AsyncTask<String, Void, Bitmap> {
ImageView profileImage;
public GetUserPicture(ImageView profileImage) {
this.profileImage = profileImage;
}
@Override
protected Bitmap doInBackground(String... urls) {
String urldisplay = urls[0];
Log.d("SHOW CORRECT URL", urldisplay);
Bitmap bitmap = null;
try {
URL url = new URL(urldisplay);
bitmap = BitmapFactory.decodeStream(url.openConnection().getInputStream());
HttpURLConnection.setFollowRedirects(true);
} catch (Exception e) {
e.printStackTrace();
}
return bitmap;
}
@Override
protected void onPostExecute(Bitmap result) {
if (result != null) {
Log.d("Not null", "NOT NULLL");
}
profileImage.setImageBitmap(getRoundedCornerBitmap(result, 70));
}
protected static Bitmap getRoundedCornerBitmap(Bitmap bitmap, int pixels) {
Bitmap output = Bitmap.createBitmap(bitmap.getWidth(), bitmap
.getHeight(), Config.ARGB_8888);
BitmapShader bitmapShader = new BitmapShader(bitmap, Shader.TileMode.CLAMP, Shader.TileMode.CLAMP);
Paint pnt = new Paint();
pnt.setAntiAlias(true);
pnt.setShader(bitmapShader);
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);
final float roundPx = pixels;
paint.setAntiAlias(true);
canvas.drawARGB(0, 0, 0, 0);
paint.setColor(color);
canvas.drawRoundRect(rectF, roundPx, roundPx, paint);
paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));
canvas.drawBitmap(bitmap, rect, rect, paint);
return output;
}
我正在从 facebook 获取这张图片,将其弄圆然后显示。但是两周前它曾经工作得很好!如果我传递看起来像这样的重定向 url:https://fbcdn-profile-a.akamaihd.net/hprofile-ak-prn1/t1.0-1/c12.12.155.155/s100x100/。 ...jpg
然后显示图像!
这里是错误:
03-31 12:05:08.482: D/skia(14479): --- SkImageDecoder::Factory returned null
03-31 12:05:08.482: D/AndroidRuntime(14479): Shutting down VM
03-31 12:05:08.482: W/dalvikvm(14479): threadid=1: thread exiting with uncaught exception (group=0x41675d40)
03-31 12:05:08.484: E/AndroidRuntime(14479): FATAL EXCEPTION: main
03-31 12:05:08.484: E/AndroidRuntime(14479): Process: com.hitchhiker.mobile, PID: 14479
03-31 12:05:08.484: E/AndroidRuntime(14479): java.lang.NullPointerException
03-31 12:05:08.484: E/AndroidRuntime(14479): at com.hitchhiker.mobile.asynctasks.GetUserPicture.getRoundedCornerBitmap(GetUserPicture.java:54)
03-31 12:05:08.484: E/AndroidRuntime(14479): at com.hitchhiker.mobile.asynctasks.GetUserPicture.onPostExecute(GetUserPicture.java:50)
03-31 12:05:08.484: E/AndroidRuntime(14479): at com.hitchhiker.mobile.asynctasks.GetUserPicture.onPostExecute(GetUserPicture.java:1)
03-31 12:05:08.484: E/AndroidRuntime(14479): at android.os.AsyncTask.finish(AsyncTask.java:632)
03-31 12:05:08.484: E/AndroidRuntime(14479): at android.os.AsyncTask.access$600(AsyncTask.java:177)
03-31 12:05:08.484: E/AndroidRuntime(14479): at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:645)
03-31 12:05:08.484: E/AndroidRuntime(14479): at android.os.Handler.dispatchMessage(Handler.java:102)
03-31 12:05:08.484: E/AndroidRuntime(14479): at android.os.Looper.loop(Looper.java:136)
03-31 12:05:08.484: E/AndroidRuntime(14479): at android.app.ActivityThread.main(ActivityThread.java:5102)
03-31 12:05:08.484: E/AndroidRuntime(14479): at java.lang.reflect.Method.invokeNative(Native Method)
03-31 12:05:08.484: E/AndroidRuntime(14479): at java.lang.reflect.Method.invoke(Method.java:515)
03-31 12:05:08.484: E/AndroidRuntime(14479): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)
03-31 12:05:08.484: E/AndroidRuntime(14479): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
03-31 12:05:08.484: E/AndroidRuntime(14479): at dalvik.system.NativeStart.main(Native Method)
03-31 12:05:08.743: D/skia(14479): --- SkImageDecoder::Factory returned null
03-31 12:05:09.023: D/skia(14479): --- SkImageDecoder::Factory returned null
03-31 12:05:09.286: D/skia(14479): --- SkImageDecoder::Factory returned null
03-31 12:05:09.526: D/skia(14479): --- SkImageDecoder::Factory returned null
03-31 12:05:09.813: D/skia(14479): --- SkImageDecoder::Factory returned null
最佳答案
我不确定,但您可以尝试使用实际网址(fb 重定向到的网址)。
要获取此 url,请使用 redirect=0
,就像这样-
"http://graph.facebook.com/"+userID+"/picture?height=100&type=normal&width=100&redirect=0"
然后你会得到响应——
{
data: {
url: "https://fbcdn-profile-a.akamaihd.net/hprofile-ak-prn1/t5.0-1/23122_595273610_9552621_q.jpg",
is_silhouette: false
}
}
从字典中获取此 url,然后尝试。我不确定,但它有帮助。
但如果它不起作用,那么它与您的代码有关,我建议您打印确切的错误/异常。
编辑:
我发现:
Auto redirection works automatically when original and redirected protocols are same.
因此,尝试从 https 而不是 http 加载图像:“https://graph.facebook.com/USER_ID/picture ”;因为图片的 url 是“https://fbcdn-profile-a.akamaihd.net/ ...”
然后 BitmapFactory.decodeStream
将再次工作。
关于android - Facebook 个人资料图片 Android 返回 null,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/22755247/