If launching an http intent fails, then fallback to WebView (because

Android TV doesn't have Chrome, I guess).  This resolves the conundrum of
what to do about the one Samsung Note 7 out there that doesn't have
Chrome, too.

NOTES

@@ -1011,11 +1011,6 @@ Luckily, even though the list of requirements is long, it is largely
 irrelevant or redundant, so I'm just about there.
 
 
-XXX - android TV support
- - doc should start a WebView instead of a URL
- - make the backgrounds of the buttons more vividly demonstrate focus
- - make nextFocusDown/Left/Right/Up overrides for some buttons
-
 
 XXX - figure out how to force a refresh on eink devices (onyx boox) when the password is displayed (Roman)
 XXX - Tasker on Android 9 can't trigger the new START/STOP intents? (Kumaran)

app/src/main/AndroidManifest.xml

@@ -11,7 +11,8 @@
     <uses-feature android:name="android.software.leanback" android:required="false" />
     <uses-feature android:name="android.hardware.touchscreen" android:required="false" />
     <application android:label="SimpleSSHD" android:icon="@drawable/icon"
-	  android:allowBackup="false" android:banner="@drawable/tvbanner">
+	  android:allowBackup="false" android:banner="@drawable/tvbanner"
+	  android:usesCleartextTraffic="true">
         <activity android:name="SimpleSSHD" android:label="SimpleSSHD"
 	    android:launchMode="singleTask">
             <intent-filter>
@@ -28,6 +29,9 @@
             </intent-filter>
         </activity>
 	<activity android:name="Settings" android:label="Settings" />
+	<activity android:name="DocActivity" android:label="Documentation" />
+	<activity android:name="DocActivityTV" android:label="Documentation"
+	    android:theme="@style/Theme.Leanback" />
 	<service android:name="SimpleSSHDService"
 	    android:label="SimpleSSHDService" />
 	<receiver android:name="BootReceiver">

app/src/main/java/org/galexander/sshd/DocActivity.java

@@ -0,0 +1,27 @@
+package org.galexander.sshd;
+
+import android.app.Activity;
+import android.os.Bundle;
+import android.webkit.WebView;
+
+public class DocActivity extends Activity
+{
+	public static final String url =
+			"http://www.galexander.org/software/simplesshd";
+	private WebView wv = null;
+
+	public void onCreate(Bundle savedInstanceState) {
+		super.onCreate(savedInstanceState);
+		setContentView(R.layout.doc);
+		wv = (WebView)findViewById(R.id.docview);
+	}
+
+	public void onResume() {
+		super.onResume();
+		wv.loadUrl(url);
+	}
+
+	public void onPause() {
+		super.onPause();
+	}
+}

app/src/main/java/org/galexander/sshd/DocActivityTV.java

@@ -0,0 +1,5 @@
+package org.galexander.sshd;
+
+public class DocActivityTV extends DocActivity
+{
+}

app/src/main/java/org/galexander/sshd/SimpleSSHD.java

@@ -114,19 +114,11 @@ public class SimpleSSHD extends Activity
 	public void doc_clicked(View v) {
 		try {
 			Intent i = new Intent(Intent.ACTION_VIEW);
-			i.setData(Uri.parse("http://www.galexander.org/software/simplesshd"));
+			i.setData(Uri.parse(DocActivity.url));
 			startActivity(i);
 		} catch (Exception e) {
-			new AlertDialog.Builder(this)
-				.setCancelable(true)
-				.setPositiveButton("OK",
-	new DialogInterface.OnClickListener() {
-	public void onClick(DialogInterface di, int which) { }
-	})
-				.setIcon(android.R.drawable.ic_dialog_info)
-				.setTitle("no browser")
-				.setMessage("YOU: a note 7 owner with no browser installed on your android?\nME: an app developer who keeps getting crash reports and wants to hear your story. email nobrowserdroid@galexander.org")
-				.show();
+			startActivity(new Intent(this, (is_tv
+				? DocActivityTV.class : DocActivity.class)));
 		}
 	}
 	public void about_clicked(View v) {

app/src/main/res/layout/doc.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<WebView xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/docview"
+    android:layout_width="fill_parent"
+    android:layout_height="fill_parent" />