Ich habe eine App erstellt in CodenameOne läuft auf Android, die NullPinterExpections wirft nach dem Versuch, zu viele Bilder zu skalieren. Ich habe CacheMap verwendet, um die Situation zu verbessern, bekomme aber immer noch das Problem, nachdem ich zu viele Bilder geladen habe.NullPointer auf Bitmap.getWidth in Codenameone Android App
meinen Code Hier ist das das Problem löst, aus InfiniteContainer fetchComponents
Image i = (Image) MoveService.getInstance().getImage(thumbnail_url);
if (i == null) {
i = theme.getImage(move.getThumbnail_url());
if (i != null) {
i = i.fill(width+20, (width/2) * 3);
MoveService.getInstance().putImage(move.getThumbnail_url(), i);
}
}
Und hier ist das, was ich aus den Protokollen erhalten:
[EDT] 0:8:57,596 - Exception: java.lang.NullPointerException - Attempt to invoke virtual method 'int android.graphics.Bitmap.getWidth()' on a null object reference
java.lang.NullPointerException: Attempt to invoke virtual method 'int android.graphics.Bitmap.getWidth()' on a null object reference
at android.graphics.Bitmap.createScaledBitmap(Bitmap.java:748)
at com.codename1.impl.android.c.a(AndroidImplementation.java:1688)
at com.codename1.k.s.c(Image.java:1008)
at com.codename1.k.s.c_(Image.java:954)
at com.codename1.k.s.b(Image.java:919)
at com.codename1.impl.android.c$8.a(AndroidImplementation.java:6216)
at com.codename1.k.n.a(EncodedImage.java:627)
at com.codename1.k.n.b(EncodedImage.java:654)
at com.codename1.k.s.e(Image.java:903)
at com.codename1.k.s.f(Image.java:974)
at com.altitude.studios.polebible.e$b.<init>(Unknown Source)
at com.altitude.studios.polebible.e$16.a(Unknown Source)
at com.codename1.k.u.m(InfiniteContainer.java:143)
at com.codename1.k.u$5.run(InfiniteContainer.java:172)
at com.codename1.k.m.l(Display.java:1154)
at com.codename1.k.m.j(Display.java:1098)
at com.codename1.k.m.i(Display.java:999)
at com.codename1.k.ad.run(RunnableWrapper.java:120)
at com.codename1.impl.b$1.run(CodenameOneThread.java:60)
at java.lang.Thread.run(Thread.java:818)