implement URL opening using libportal

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

@@ -296,6 +296,11 @@ public class Activity extends Context implements Window.Callback {
 
 	public void startActivity(Intent intent) {
 		System.out.println("startActivity(" + intent + ") called");
+		if (intent.getComponent() == null) {
+			System.out.println("starting extern activity with intent: " + intent);
+			nativeOpenURI(String.valueOf(intent.getData()));
+			return;
+		}
 		try {
 			Class<? extends Activity> cls = Class.forName(intent.getComponent().getClassName()).asSubclass(Activity.class);
 			Constructor<? extends Activity> constructor = cls.getConstructor();
@@ -336,6 +341,7 @@ public class Activity extends Context implements Window.Callback {
 
 	private native void nativeFinish(long native_window);
 	private static native void nativeStartActivity(Activity activity);
+	private static native void nativeOpenURI(String uri);
 
 	@Override
 	public void onContentChanged() {

src/api-impl/android/content/Intent.java

@@ -8,15 +8,30 @@ import java.io.Serializable;
 public class Intent {
 	private ComponentName component;
 	private Bundle extras = new Bundle();
+	private String action;
+	private Uri data;
 
 	public Intent() {}
-	public Intent(Intent o) {}
-	public Intent(String action) {}
-	public Intent(String action, Uri uri) {}
+	public Intent(Intent o) {
+		this.action = o.action;
+		this.data = o.data;
+		this.extras = o.extras;
+		this.component = o.component;
+	}
+	public Intent(String action) {
+		this.action = action;
+	}
+	public Intent(String action, Uri uri) {
+		this.action = action;
+		this.data = uri;
+	}
 	public Intent(Context packageContext, Class<?> cls) {
 		setClass(packageContext, cls);
 	}
-	public Intent(String action, Uri uri, Context packageContext, Class<?> cls) {}
+	public Intent(String action, Uri uri, Context packageContext, Class<?> cls) {
+		this(action, uri);
+		setClass(packageContext, cls);
+	}
 
 	public Intent addFlags(int flags) {
 		return this; //??
@@ -159,7 +174,7 @@ public class Intent {
 	}
 
 	public Uri getData() {
-		return null;
+		return data;
 	}
 
 	public boolean getBooleanExtra(String name, boolean defaultValue) {
@@ -209,7 +224,11 @@ public class Intent {
 
 	@Override
 	public String toString() {
-		return "Intent [component=" + component + ", extras=" + extras + "]";
+		return "Intent [component=" + component + ", extras=" + extras + ", action=" + action + ", uri=" + data + "]";
+	}
+
+	public static Intent createChooser(Intent target, CharSequence title) {
+		return target;
 	}
 
 }

src/api-impl/android/content/pm/PackageItemInfo.java

@@ -80,6 +80,7 @@ public class PackageItemInfo {
 
 	public PackageItemInfo() {
 		metaData = new Bundle();
+		packageName = "android";
 	}
 
 	public PackageItemInfo(PackageItemInfo orig) {

src/api-impl/android/content/pm/PackageManager.java

@@ -2132,7 +2132,7 @@ public class PackageManager {
 	 * @see #GET_RESOLVED_FILTER
 	 */
 	public ResolveInfo resolveActivity(Intent intent, int flags) {
-		return null;
+		return new ResolveInfo();
 	}
 
 	/**

src/api-impl/android/content/pm/ResolveInfo.java

@@ -1,4 +1,5 @@
 package android.content.pm;
 
 public class ResolveInfo {
+	public ActivityInfo activityInfo = new ActivityInfo();
 }

src/api-impl/android/net/Uri.java

@@ -1,8 +1,17 @@
 package android.net;
 
+import java.net.URI;
+
 public class Uri {
+	private URI uri;
+
 	public static Uri parse(String s) {
-		return new Uri();
+		Uri ret = new Uri();
+		try {
+			ret.uri = URI.create(s);
+		} catch (IllegalArgumentException e) {
+		}
+		return ret;
 	}
 
 	public Builder buildUpon() {
@@ -14,4 +23,9 @@ public class Uri {
 			return this;
 		}
 	}
+
+	@Override
+	public String toString() {
+		return String.valueOf(uri);
+	}
 }