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Code Issues Packages Projects Releases Wiki Activity

auto find main activity using AndroidManifest.xml

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This commit is contained in:
Julian Winkler
2023-05-20 19:23:40 +02:00
parent 12e9e9788a
commit 997642d93a
3 changed files with 31 additions and 7 deletions
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5
src/api-impl-jni/util.c
View File

@@ -43,10 +43,11 @@ void set_up_handle_cache(JNIEnv *env, char *apk_main_activity_class)
{
(*env)->GetJavaVM(env, &jvm);
handle_cache.apk_main_activity.class = _REF((*env)->FindClass(env, apk_main_activity_class));
handle_cache.apk_main_activity.class = _REF((*env)->FindClass(env, "android/app/Activity"));
if((*env)->ExceptionCheck(env))
(*env)->ExceptionDescribe(env);
handle_cache.apk_main_activity.object = _REF((*env)->NewObject(env, handle_cache.apk_main_activity.class, _METHOD(handle_cache.apk_main_activity.class, "<init>", "()V")));
jmethodID createMainActivity = _STATIC_METHOD(handle_cache.apk_main_activity.class, "createMainActivity", "(Ljava/lang/String;)Landroid/app/Activity;");
handle_cache.apk_main_activity.object = _REF((*env)->CallStaticObjectMethod(env, handle_cache.apk_main_activity.class, createMainActivity, _JSTRING(apk_main_activity_class)));
if((*env)->ExceptionCheck(env))
(*env)->ExceptionDescribe(env);
handle_cache.apk_main_activity.onCreate = _METHOD(handle_cache.apk_main_activity.class, "onCreate", "(Landroid/os/Bundle;)V");

28
src/api-impl/android/app/Activity.java
View File

@@ -18,14 +18,42 @@ import android.view.WindowManagerImpl;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserFactory;
import com.reandroid.arsc.chunk.xml.AndroidManifestBlock;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.StringReader;
import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;
public class Activity extends Context {
LayoutInflater layout_inflater;
Window window = new Window();
int requested_orientation = -1 /*ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED*/; // dummy
/**
* Helper function to be called from native code to construct main activity
*
* @param className class name of activity or null
* @return instance of main activity class
*/
private static Activity createMainActivity(String className) throws ClassNotFoundException, NoSuchMethodException, SecurityException, InstantiationException, IllegalAccessException, IllegalArgumentException, InvocationTargetException, IOException {
if (className == null) {
InputStream inStream = ClassLoader.getSystemClassLoader().getResourceAsStream("AndroidManifest.xml");
AndroidManifestBlock block = AndroidManifestBlock.load(inStream);
className = block.getMainActivity().searchAttributeByResourceId(AndroidManifestBlock.ID_name).getValueAsString();
if (className.startsWith(".")) {
className = block.getPackageName() + className;
}
} else {
className = className.replace('/', '.');
}
Class<? extends Activity> cls = Class.forName(className).asSubclass(Activity.class);
Constructor<? extends Activity> constructor = cls.getConstructor();
return constructor.newInstance();
}
protected void set_window(long native_window) {
window.native_window = native_window;
}

5
src/main-executable/main.c
View File

@@ -280,11 +280,6 @@ static void open(GtkApplication *app, GFile** files, gint nfiles, const gchar* h
free(app_lib_dir);
if(!d->apk_main_activity_class) {
printf("error: missing required option --launch-activity <activity>.\nyou can specify --help to see the list of options\n");
exit(1);
}
set_up_handle_cache(env, d->apk_main_activity_class);
jclass display_class = (*env)->FindClass(env, "android/view/Display");