1 files changed, 99 insertions, 0 deletions
diff --git a/sample/src/main/java/com/davemorrissey/labs/subscaleview/test/AbstractPagesActivity.java b/sample/src/main/java/com/davemorrissey/labs/subscaleview/test/AbstractPagesActivity.java
new file mode 100644
index 0000000..4ce36de
--- /dev/null
+++ b/sample/src/main/java/com/davemorrissey/labs/subscaleview/test/AbstractPagesActivity.java
@@ -0,0 +1,99 @@
+package com.davemorrissey.labs.subscaleview.test;
+
+import android.app.ActionBar;
+import android.os.Bundle;
+import android.support.annotation.Nullable;
+import android.support.v4.app.FragmentActivity;
+import android.view.MenuItem;
+import android.view.View;
+import android.widget.TextView;
+
+import java.util.List;
+
+public abstract class AbstractPagesActivity extends FragmentActivity {
+
+    private static final String BUNDLE_PAGE = "page";
+
+    private int page;
+
+    private final int title;
+    private final int layout;
+    private final List<Page> notes;
+
+    protected AbstractPagesActivity(int title, int layout, List<Page> notes) {
+        this.title = title;
+        this.layout = layout;
+        this.notes = notes;
+    }
+
+    @Override
+    protected void onCreate(@Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(layout);
+        ActionBar actionBar = getActionBar();
+        if (actionBar != null) {
+            actionBar.setTitle(getString(title));
+            actionBar.setDisplayHomeAsUpEnabled(true);
+        }
+        findViewById(R.id.next).setOnClickListener(new View.OnClickListener() {
+            @Override public void onClick(View v) { next(); }
+        });
+        findViewById(R.id.previous).setOnClickListener(new View.OnClickListener() {
+            @Override public void onClick(View v) { previous(); }
+        });
+        if (savedInstanceState != null && savedInstanceState.containsKey(BUNDLE_PAGE)) {
+            page = savedInstanceState.getInt(BUNDLE_PAGE);
+        }
+    }
+
+    @Override
+    protected void onResume() {
+        super.onResume();
+        updateNotes();
+    }
+
+    @Override
+    protected void onSaveInstanceState(Bundle outState) {
+        super.onSaveInstanceState(outState);
+        outState.putInt(BUNDLE_PAGE, page);
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        finish();
+        return true;
+    }
+
+    private void next() {
+        page++;
+        updateNotes();
+    }
+
+    private void previous() {
+        page--;
+        updateNotes();
+    }
+
+    private void updateNotes() {
+        if (page > notes.size() - 1) {
+            return;
+        }
+        ActionBar actionBar = getActionBar();
+        if (actionBar != null) {
+            actionBar.setSubtitle(notes.get(page).getSubtitle());
+        }
+        ((TextView)findViewById(R.id.note)).setText(notes.get(page).getText());
+        findViewById(R.id.next).setVisibility(page >= notes.size() - 1 ? View.INVISIBLE : View.VISIBLE);
+        findViewById(R.id.previous).setVisibility(page <= 0 ? View.INVISIBLE : View.VISIBLE);
+        onPageChanged(page);
+    }
+
+    protected final int getPage() {
+        return page;
+    }
+
+    protected void onPageChanged(int page) {
+
+    }
+
+}