Java ReflectionHelpers.callInstanceMethod方法代码示例

import org.robolectric.util.ReflectionHelpers; //导入方法依赖的package包/类
private void resetWindowManager() {
    Class clazz = ReflectionHelpers.loadClass(getClass().getClassLoader(), "android.view.WindowManagerGlobal");
    Object instance = ReflectionHelpers.callStaticMethod(clazz, "getInstance");

    // We essentially duplicate what's in {@link WindowManagerGlobal#closeAll} with what's below.
    // The closeAll method has a bit of a bug where it's iterating through the "roots" but
    // bases the number of objects to iterate through by the number of "views." This can result in
    // an {@link java.lang.IndexOutOfBoundsException} being thrown.
    Object lock = ReflectionHelpers.getField(instance, "mLock");

    ArrayList<Object> roots = ReflectionHelpers.getField(instance, "mRoots");
    //noinspection SynchronizationOnLocalVariableOrMethodParameter
    synchronized (lock) {
        for (int i = 0; i < roots.size(); i++) {
            ReflectionHelpers.callInstanceMethod(instance, "removeViewLocked",
                    ReflectionHelpers.ClassParameter.from(int.class, i),
                    ReflectionHelpers.ClassParameter.from(boolean.class, false));
        }
    }

    // Views will still be held by this array. We need to clear it out to ensure
    // everything is released.
    Collection<View> dyingViews = ReflectionHelpers.getField(instance, "mDyingViews");
    dyingViews.clear();

}
 

import org.robolectric.util.ReflectionHelpers; //导入方法依赖的package包/类
@Test
public void onBrowserSwitchResult_whenResultIsError_reportsError() {
    BrowserSwitchResult result = BrowserSwitchResult.ERROR;
    ReflectionHelpers.callInstanceMethod(result, "setErrorMessage",
            new ReflectionHelpers.ClassParameter<>(String.class, "Browser switch error"));

    mPopupBridge.onBrowserSwitchResult(1, result, null);

    assertEquals("new Error('Browser switch error')", mWebView.mError);
}
 

import org.robolectric.util.ReflectionHelpers; //导入方法依赖的package包/类
@SuppressLint("NewApi")
@After
public void resetWindowManager() throws Exception {
    // https://github.com/robolectric/robolectric/pull/1741
    final Class<?> btclass = Class.forName("com.android.internal.os.BackgroundThread");
    Object backgroundThreadSingleton = ReflectionHelpers.getStaticField(btclass,"sInstance");
    if (backgroundThreadSingleton!=null) {
        btclass.getMethod("quit").invoke(backgroundThreadSingleton);
        ReflectionHelpers.setStaticField(btclass, "sInstance", null);
        ReflectionHelpers.setStaticField(btclass, "sHandler", null);
    }

    // https://github.com/robolectric/robolectric/issues/2068
    Class clazz = ReflectionHelpers.loadClass(getClass().getClassLoader(), "android.view.WindowManagerGlobal");
    Object instance = ReflectionHelpers.callStaticMethod(clazz, "getInstance");

    // We essentially duplicate what's in {@link WindowManagerGlobal#closeAll} with what's below.
    // The closeAll method has a bit of a bug where it's iterating through the "roots" but
    // bases the number of objects to iterate through by the number of "views." This can result in
    // an {@link java.lang.IndexOutOfBoundsException} being thrown.
    Object lock = ReflectionHelpers.getField(instance, "mLock");

    ArrayList<Object> roots = ReflectionHelpers.getField(instance, "mRoots");
    //noinspection SynchronizationOnLocalVariableOrMethodParameter
    synchronized (lock) {
        for (int i = 0; i < roots.size(); i++) {
            ReflectionHelpers.callInstanceMethod(instance, "removeViewLocked",
                    ReflectionHelpers.ClassParameter.from(int.class, i),
                    ReflectionHelpers.ClassParameter.from(boolean.class, false));
        }
    }

    // Views will still be held by this array. We need to clear it out to ensure
    // everything is released.
    ArraySet<View> dyingViews = ReflectionHelpers.getField(instance, "mDyingViews");
    dyingViews.clear();
}
 

import org.robolectric.util.ReflectionHelpers; //导入方法依赖的package包/类
/**
 * Try and avoid Robolectric OOM errors
 * Probably this: https://github.com/robolectric/robolectric/issues/2068
 * Based on code from https://github.com/robolectric/robolectric/issues/1700#issuecomment-163943815
 */
@After
public void globalTearDown() throws ClassNotFoundException, NoSuchMethodException, InvocationTargetException, IllegalAccessException {
    // https://github.com/robolectric/robolectric/pull/1741
    final Class<?> btclass = Class.forName("com.android.internal.os.BackgroundThread");
    Object backgroundThreadSingleton = ReflectionHelpers.getStaticField(btclass,"sInstance");
    if (backgroundThreadSingleton!=null) {
        btclass.getMethod("quit").invoke(backgroundThreadSingleton);
        ReflectionHelpers.setStaticField(btclass, "sInstance", null);
        ReflectionHelpers.setStaticField(btclass, "sHandler", null);
    }

    // https://github.com/robolectric/robolectric/issues/2068
    Class clazz = ReflectionHelpers.loadClass(getClass().getClassLoader(), "android.view.WindowManagerGlobal");
    Object instance = ReflectionHelpers.callStaticMethod(clazz, "getInstance");

    // We essentially duplicate what's in {@link WindowManagerGlobal#closeAll} with what's below.
    // The closeAll method has a bit of a bug where it's iterating through the "roots" but
    // bases the number of objects to iterate through by the number of "views." This can result in
    // an {@link java.lang.IndexOutOfBoundsException} being thrown.
    Object lock = ReflectionHelpers.getField(instance, "mLock");

    ArrayList<Object> roots = ReflectionHelpers.getField(instance, "mRoots");
    //noinspection SynchronizationOnLocalVariableOrMethodParameter
    synchronized (lock) {
        for (int i = 0; i < roots.size(); i++) {
            ReflectionHelpers.callInstanceMethod(instance, "removeViewLocked",
                    ReflectionHelpers.ClassParameter.from(int.class, i),
                    ReflectionHelpers.ClassParameter.from(boolean.class, false));
        }
    }

    // Views will still be held by this array. We need to clear it out to ensure
    // everything is released.
    Collection<View> dyingViews = ReflectionHelpers.getField(instance, "mDyingViews");
    dyingViews.clear();
}
 

import org.robolectric.util.ReflectionHelpers; //导入方法依赖的package包/类
private static List<OnAttachStateChangeListener> getAttachStateListeners(View view) {
    Object listenerInfo = ReflectionHelpers.callInstanceMethod(view, "getListenerInfo");
    return ReflectionHelpers.getField(listenerInfo, "mOnAttachStateChangeListeners");
}
 

import org.robolectric.util.ReflectionHelpers; //导入方法依赖的package包/类
private void exitLayout() {
    if (recyclerView != null && recyclerView.isComputingLayout()) {
        ReflectionHelpers.callInstanceMethod(recyclerView, "onExitLayoutOrScroll");
    }
}
 

import org.robolectric.util.ReflectionHelpers; //导入方法依赖的package包/类
/**
 * Manually retrieve the view's attach state change listeners of an event. Robolectric
 * doesn't currently support manually firing these, and it would seem the events are not called
 * in normal Robolectric usage either.
 *
 * @param view View with listeners to notify
 */
static CopyOnWriteArrayList<View.OnAttachStateChangeListener> getAttachStateChangeListeners(View view) {
    Object listenerInfo = ReflectionHelpers.callInstanceMethod(view, "getListenerInfo");
    return ReflectionHelpers.getField(listenerInfo, "mOnAttachStateChangeListeners");
}