BundleUtils.java 文件源码

public static void waitBundleStarted(Bundle bundle) {
    if ((bundle.adapt(BundleRevision.class).getTypes() & BundleRevision.TYPE_FRAGMENT) != 0) {
        return;
    }

    BundleContext ctx;
    int state;

    // 自旋锁
    for (;;) {
        state = bundle.getState();
        if (state != Bundle.STARTING && state != Bundle.ACTIVE) {
            return;
        }
        ctx = bundle.getBundleContext();
        if (ctx == null) {
            Thread.yield();
        } else {
            return;
        }
    }
}