api-impl: misc additions for Oeffi

src/api-impl/android/app/Activity.java

@@ -378,6 +378,10 @@ public class Activity extends ContextThemeWrapper implements Window.Callback {
 		dialog.show();
 	}
 
+	public boolean showDialog(int id, Bundle args) {
+		return false;
+	}
+
 	public void removeDialog(int id) {
 		Dialog dialog = dialogs.remove(id);
 		if (dialog != null)
@@ -388,9 +392,9 @@ public class Activity extends ContextThemeWrapper implements Window.Callback {
 		runOnUiThread(new Runnable() {
 			@Override
 			public void run() {
-				if (window != null) {
+				if (window != null && window.native_window != 0) {
 					nativeFinish(getWindow().native_window);
-					window = null;
+					window.native_window = 0;
 				}
 			}
 		});
@@ -575,4 +579,5 @@ public class Activity extends ContextThemeWrapper implements Window.Callback {
 	public Uri getReferrer() { return null; }
 	public void setDefaultKeyMode(int flag) {}
 	public void registerForContextMenu(View view) {}
+	public boolean isInMultiWindowMode() { return true; }
 }

src/api-impl/android/app/ActivityManager.java

@@ -78,4 +78,6 @@ public class ActivityManager {
 		throws SecurityException {
 			return new ArrayList<>();
 	}
+
+	public int getLargeMemoryClass() {return getMemoryClass();}
 }

src/api-impl/android/app/AlertDialog.java

@@ -35,6 +35,10 @@ public class AlertDialog extends Dialog implements DialogInterface {
 			dialog = new AlertDialog(context);
 		}
 
+		public Builder(Context context, int themeResId) {
+			dialog = new AlertDialog(context, themeResId);
+		}
+
 		public AlertDialog.Builder setPositiveButton(int textId, DialogInterface.OnClickListener listener) {
 			return setPositiveButton(dialog.getContext().getText(textId), listener);
 		}
@@ -92,6 +96,10 @@ public class AlertDialog extends Dialog implements DialogInterface {
 			return this;
 		}
 
+		public AlertDialog.Builder setItems(int itemsId, final DialogInterface.OnClickListener listener) {
+			return setItems(dialog.getContext().getResources().getTextArray(itemsId), listener);
+		}
+
 		public Builder setOnCancelListener(OnCancelListener onCancelListener) {
 			return this;
 		}

src/api-impl/android/app/ProgressDialog.java

@@ -13,4 +13,8 @@ public class ProgressDialog extends AlertDialog {
 	}
 
 	public void setIndeterminate(boolean indeterminate) {}
+
+	public static ProgressDialog show(Context context, CharSequence title, CharSequence message, boolean indeterminate, boolean cancelable, OnCancelListener cancelListener) {
+		return new ProgressDialog(context);
+	}
 }