protected override void Dispose(bool disposing)
{
if (this.class_ref != IntPtr.Zero)
{
JNIEnv.DeleteGlobalRef(this.class_ref);
}
this.class_ref = IntPtr.Zero;
base.Dispose(disposing);
}
public void ConversionsAndThreadsAndInstanceMappingsOhMy()
{
IntPtr lrefJliArray = JNIEnv.NewObjectArray <int> (new[] { 1 });
IntPtr grefJliArray = JNIEnv.NewGlobalRef(lrefJliArray);
JNIEnv.DeleteLocalRef(lrefJliArray);
Java.Lang.Object[] jarray = (Java.Lang.Object[])
JNIEnv.GetArray(grefJliArray, JniHandleOwnership.DoNotTransfer, typeof(Java.Lang.Object));
Exception ignore_t1 = null;
Exception ignore_t2 = null;
var t1 = new Thread(() => {
int[] output_array1 = new int[1];
for (int i = 0; i < 2000; ++i)
{
Console.WriteLine("# t1 iter: {0}", i);
try {
JNIEnv.CopyObjectArray(grefJliArray, output_array1);
} catch (Exception e) {
ignore_t1 = e;
break;
}
}
});
var t2 = new Thread(() => {
for (int i = 0; i < 2000; ++i)
{
Console.WriteLine("# t2 iter: {0}", i);
try {
JNIEnv.GetArray <int>(jarray);
} catch (Exception e) {
ignore_t2 = e;
break;
}
}
});
t1.Start();
t2.Start();
t1.Join();
t2.Join();
for (int i = 0; i < jarray.Length; ++i)
{
jarray [i].Dispose();
jarray [i] = null;
}
JNIEnv.DeleteGlobalRef(grefJliArray);
Assert.IsNull(ignore_t1, string.Format("No exception should be thrown [t1]! Got: {0}", ignore_t1));
Assert.IsNull(ignore_t2, string.Format("No exception should be thrown [t2]! Got: {0}", ignore_t2));
}
private static void DeleteRef(IntPtr handle, JniHandleOwnership transfer)
{
if (transfer == JniHandleOwnership.TransferLocalRef)
{
JNIEnv.DeleteLocalRef(handle);
}
else if (transfer == JniHandleOwnership.TransferGlobalRef)
{
JNIEnv.DeleteGlobalRef(handle);
}
}
internal static void StaticDestroy()
{
JNIEnv.DeleteGlobalRef(blankJavaDataBuffer);
// release created audio tracks and java buffers.
foreach (var trackInfo in audioTrackPool)
{
trackInfo.Dispose();
}
audioTrackPool.Clear();
}
/// <summary>
/// Equivalent of Display.GetRealSize (introduced in API 17), except this version works as far back as
/// API 14.
/// </summary>
static AG.Point GetRealSize(Display display)
{
var realSize = new AG.Point();
var klassDisplay = JNIEnv.FindClass("android/view/Display");
var displayHandle = JNIEnv.ToJniHandle(display);
try {
// If the OS is running Jelly Bean (API 17), we can call Display.GetRealSize via JNI
if ((int)Build.VERSION.SdkInt >= 17 /*BuildVersionCodes.JellyBeanMr1*/)
{
var getRealSizeMethodId = JNIEnv.GetMethodID(
klassDisplay,
"getRealSize",
"(Landroid/graphics/Point;)V");
JNIEnv.CallVoidMethod(
displayHandle, getRealSizeMethodId, new JValue(realSize));
}
else if (Build.VERSION.SdkInt >= BuildVersionCodes.IceCreamSandwich)
{
// Otherwise, this OS is older. As long as it's API 14-16, these private
// methods can get the real size.
var rawHeightMethodId = JNIEnv.GetMethodID(
klassDisplay,
"getRawHeight",
"()I");
var rawWidthMethodId = JNIEnv.GetMethodID(
klassDisplay,
"getRawWidth",
"()I");
var height = JNIEnv.CallIntMethod(displayHandle, rawHeightMethodId);
var width = JNIEnv.CallIntMethod(displayHandle, rawWidthMethodId);
realSize = new AG.Point(width, height);
}
else
{
// Just return something for API < 14
display.GetSize(realSize);
}
} finally {
JNIEnv.DeleteGlobalRef(klassDisplay);
}
return(realSize);
}
public void MoarThreadingTests()
{
IntPtr lrefJliArray = JNIEnv.NewObjectArray <int> (new[] { 1 });
IntPtr grefJliArray = JNIEnv.NewGlobalRef(lrefJliArray);
JNIEnv.DeleteLocalRef(lrefJliArray);
Exception ignore_t1 = null;
Exception ignore_t2 = null;
var t1 = new Thread(() => {
int[] output_array1 = new int[1];
for (int i = 0; i < 2000; ++i)
{
Console.WriteLine("# t1 iter: {0}", i);
try {
JNIEnv.CopyObjectArray(grefJliArray, output_array1);
} catch (Exception e) {
ignore_t1 = e;
break;
}
}
});
var t2 = new Thread(() => {
for (int i = 0; i < 2000; ++i)
{
Console.WriteLine("# t2 iter: {0}", i);
try {
JNIEnv.GetObjectArray(grefJliArray, new[] { typeof(int) });
} catch (Exception e) {
ignore_t2 = e;
break;
}
}
});
t1.Start();
t2.Start();
t1.Join();
t2.Join();
JNIEnv.DeleteGlobalRef(grefJliArray);
Assert.IsNull(ignore_t1, string.Format("No exception should be thrown [t1]! Got: {0}", ignore_t1));
Assert.IsNull(ignore_t2, string.Format("No exception should be thrown [t2]! Got: {0}", ignore_t2));
}
public ActivityTrackerWrapper()
{
var monodroidDll = Assembly.GetAssembly(typeof(Application));
trackerType = monodroidDll.GetType("Android.App.ActivityTracker");
tracker = Activator.CreateInstance(trackerType);
// We cannot use the C# APIs to perform registration, because if there is a custom Application
// subclass used for the app, accessing it at this time generates a MCW for the underlying Java
// class, ultimately causing an infinite loop and stack overflow, since this is being called
// during RegisterJniNatives.
//
// So, we use JNI to make sure the calls happen in Java land. This JNI code is equivalent to:
//
// ((Application)Application.Context).RegisterActivityLifecycleCallbacks (
// (Application.IActivityLifecycleCallbacks) tracker);
var trackerJValue =
new JValue(JNIEnv.ToJniHandle((Application.IActivityLifecycleCallbacks)tracker));
var klassMonoApp = JNIEnv.FindClass("mono/MonoPackageManager");
var klassAndroidApp = JNIEnv.FindClass("android/app/Application");
try {
var contextFieldId = JNIEnv.GetStaticFieldID(
klassMonoApp, "Context", "Landroid/content/Context;");
var contextLref = JNIEnv.GetStaticObjectField(klassMonoApp, contextFieldId);
var registerMethodId = JNIEnv.GetMethodID(
klassAndroidApp,
"registerActivityLifecycleCallbacks",
"(Landroid/app/Application$ActivityLifecycleCallbacks;)V");
JNIEnv.CallNonvirtualVoidMethod(
contextLref, klassAndroidApp, registerMethodId, trackerJValue);
} finally {
JNIEnv.DeleteGlobalRef(klassMonoApp);
JNIEnv.DeleteGlobalRef(klassAndroidApp);
}
// Uncomment if we need access to ActivityStarted event:
//var activityStartedEvent = trackerType.GetEvent ("ActivityStarted");
//Action<object, EventArgs> handler = OnActivityStarted;
//var d = Delegate.CreateDelegate (activityStartedEvent.EventHandlerType, this, "OnActivityStarted");
//activityStartedEvent.AddEventHandler (tracker, d);
}
protected override bool ReleaseHandle()
{
try
{
if (handle != IntPtr.Zero)
{
JNIEnv env = JNIEnv.GetEnvNoThrow(javaVM);
if (env == null)
{
return(false);
}
env.DeleteGlobalRef(this);
}
return(true);
}
finally
{
handle = IntPtr.Zero;
}
}
protected virtual void Dispose(bool disposing)
{
// free native resources if there are any.
foreach (KeyValuePair <string, IntPtr> javaClass in usedClasses)
{
if (javaClass.Value != IntPtr.Zero)
{
env.DeleteGlobalRef(javaClass.Value);
usedClasses[javaClass.Key] = IntPtr.Zero;
}
}
for (int i = 0, end = usedObject.Count; i < end; ++i)
{
IntPtr javaObject = usedObject[i];
if (javaObject != IntPtr.Zero)
{
env.DeleteLocalRef(javaObject);
usedObject[i] = IntPtr.Zero;
}
}
if (disposing)
{
// free managed resources
if (jvm != null)
{
jvm.Dispose();
jvm = null;
}
if (env != null)
{
env.Dispose();
env = null;
}
}
}
internal static void Dispose(IJavaPeerable instance, ref IntPtr handle, IntPtr key_handle, JObjectRefType handle_type)
{
if (handle == IntPtr.Zero)
{
return;
}
if (Logger.LogGlobalRef)
{
JNIEnv._monodroid_gref_log(
string.Format("Disposing handle 0x{0}\n", handle.ToString("x")));
}
JNIEnv.AndroidValueManager.RemovePeer(instance, key_handle);
switch (handle_type)
{
case JObjectRefType.Global:
lock (instance) {
JNIEnv.DeleteGlobalRef(handle);
handle = IntPtr.Zero;
}
break;
case JObjectRefType.WeakGlobal:
lock (instance) {
JNIEnv.DeleteWeakGlobalRef(handle);
handle = IntPtr.Zero;
}
break;
default:
throw new InvalidOperationException("Trying to dispose handle of type '" +
handle_type + "' which is not supported.");
}
}
public void InvokeOverriddenAbsListView_AdapterProperty()
{
IntPtr grefAbsListView_class = JNIEnv.FindClass("android/widget/AbsListView");
// AbsListView doesn't override getAdapter(), and thus it inherits the
// AdapterView method; no need to check its behavior.
IntPtr AbsListView_setAdapter = IntPtr.Zero;
if ((int)Build.VERSION.SdkInt >= 11)
{
AbsListView_setAdapter = JNIEnv.GetMethodID(grefAbsListView_class, "setAdapter", "(Landroid/widget/ListAdapter;)V");
}
IntPtr grefAdapterView_class = JNIEnv.FindClass("android/widget/AdapterView");
IntPtr AdapterView_getAdapter = JNIEnv.GetMethodID(grefAdapterView_class, "getAdapter", "()Landroid/widget/Adapter;");
IntPtr AdapterView_setAdapter = JNIEnv.GetMethodID(grefAdapterView_class, "setAdapter", "(Landroid/widget/Adapter;)V");
JNIEnv.DeleteGlobalRef(grefAbsListView_class);
JNIEnv.DeleteGlobalRef(grefAdapterView_class);
using (var adapter = new CanOverrideAbsListView_Adapter(Application.Context)) {
var a = Java.Lang.Object.GetObject <IListAdapter>(
JNIEnv.CallObjectMethod(adapter.Handle, AdapterView_getAdapter), JniHandleOwnership.TransferLocalRef);
Assert.AreSame(adapter.AdapterValue, a);
if (AbsListView_setAdapter != IntPtr.Zero)
{
adapter.AdapterSetterInvoked = false;
JNIEnv.CallVoidMethod(adapter.Handle, AbsListView_setAdapter, new JValue(IntPtr.Zero));
Assert.IsTrue(adapter.AdapterSetterInvoked);
}
adapter.AdapterSetterInvoked = false;
JNIEnv.CallVoidMethod(adapter.Handle, AdapterView_setAdapter, new JValue(IntPtr.Zero));
Assert.IsTrue(adapter.AdapterSetterInvoked);
}
}
public void Dispose()
{
Track.Release();
Track.Dispose();
JNIEnv.DeleteGlobalRef(javaDataBuffer);
}