make test app use auto-scroll

* on special request of Samuel :)

3 files changed, 45 insertions, 2 deletions

diff --git a/tests/res/layout/cgeo_tests_activity.xml b/tests/res/layout/cgeo_tests_activity.xml
index ba87829..43225ac 100644
--- a/tests/res/layout/cgeo_tests_activity.xml
+++ b/tests/res/layout/cgeo_tests_activity.xml
@@ -21,7 +21,7 @@
         android:text="@string/logcat"
         android:textAppearance="?android:attr/textAppearanceLarge" />
 
-    <ScrollView
+    <cgeo.geocaching.test.BottomAwareScrollView
         android:id="@+id/scrollView"
         android:layout_width="match_parent"
         android:layout_height="fill_parent"
@@ -35,7 +35,7 @@
             android:layout_height="wrap_content"
             android:textSize="8sp"
             tools:ignore="SmallSp" />
-    </ScrollView>
+    </cgeo.geocaching.test.BottomAwareScrollView>
 
     <Button
         android:id="@+id/buttonRun"
diff --git a/tests/src/cgeo/geocaching/test/BottomAwareScrollView.java b/tests/src/cgeo/geocaching/test/BottomAwareScrollView.java
new file mode 100644
index 0000000..5735241
--- /dev/null
+++ b/tests/src/cgeo/geocaching/test/BottomAwareScrollView.java
@@ -0,0 +1,36 @@
+package cgeo.geocaching.test;
+
+import android.content.Context;
+import android.util.AttributeSet;
+import android.view.View;
+import android.widget.ScrollView;
+
+public class BottomAwareScrollView extends ScrollView {
+
+    private boolean isAtBottom = true;
+
+    public BottomAwareScrollView(Context context, AttributeSet attrs, int defStyle) {
+        super(context, attrs, defStyle);
+    }
+
+    public BottomAwareScrollView(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    public BottomAwareScrollView(Context context) {
+        super(context);
+    }
+
+    @Override
+    protected void onScrollChanged(int l, int t, int oldl, int oldt) {
+        View lastChildView = getChildAt(getChildCount() - 1);
+        int diff = (lastChildView.getBottom() - (getHeight() + getScrollY()));
+        isAtBottom = diff <= 0;
+        super.onScrollChanged(l, t, oldl, oldt);
+    }
+
+    public boolean isAtBottom() {
+        return isAtBottom;
+    }
+
+}
diff --git a/tests/src/cgeo/geocaching/test/CgeoTestsActivity.java b/tests/src/cgeo/geocaching/test/CgeoTestsActivity.java
index 8b86f35..0f41cef 100644
--- a/tests/src/cgeo/geocaching/test/CgeoTestsActivity.java
+++ b/tests/src/cgeo/geocaching/test/CgeoTestsActivity.java
@@ -25,6 +25,8 @@ public class CgeoTestsActivity extends Activity {
     private TextView logView;
     private LogcatAsyncTask logCatTask;
 
+    private BottomAwareScrollView scrollView;
+
     private class LogcatAsyncTask extends AsyncTask<Integer, String, Void> {
         // TestRunner and silence others
         private static final String CMD = "logcat -v brief TestRunner:I cgeo:I *:S";
@@ -44,8 +46,12 @@ public class CgeoTestsActivity extends Activity {
         @Override
         protected void onProgressUpdate(String... values) {
             final String line = values[0];
+            final boolean isAtBottom = scrollView.isAtBottom();
             if (!TextUtils.isEmpty(line)) {
                 logView.append(Html.fromHtml("<font color=\"" + color(line) + "\">" + line + "</font><br/>"));
+                if (isAtBottom) {
+                    scrollView.scrollTo(0, logView.getBottom());
+                }
             }
         }
 
@@ -85,6 +91,7 @@ public class CgeoTestsActivity extends Activity {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.cgeo_tests_activity);
         logView = (TextView) findViewById(R.id.logOutput);
+        scrollView = (BottomAwareScrollView) findViewById(R.id.scrollView);
     }
 
     @Override