android_java_handleの弱い参照
1366 ワード
handle static ,
Activity finish , 1 , 。 Activity Handler , Handler Activity。 , Activity , Activity 。
WeakReference SoftReference , 。
WeakReference , GC 。 , GC , Debug、 。 , GC 。
JDK Proxy Weakrefrence ,Proxy Class Weakrefrence Map Cache。
SoftReference , , JVM OutOfMemory, GC 。 Cache。 Cache, , JVM , OutOfMemoryError , JVM Cache , Load Cache 。 。
private static class MainHandler extends Handler {
private final WeakReference<BaseScanActivity> weakReference;
BaseScanActivity activity;
public MainHandler(BaseScanActivity activity) {
weakReference = new WeakReference<BaseScanActivity>(activity);
activity = weakReference.get();
}
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case HadwareControll.BARCODE_READ: {
activity.onBarcodeRead(msg.obj + "
");
break;
}
}
};
}