commit f80b4ff00b65b00b7aa7b39d8020c2e2f28639b7
author Bobby Wang <bobwang@gpartner-nvidia.com> Thu Sep 22 16:43:49 2016 +0800
committer Bobby Wang <bobwang@gpartner-nvidia.com> Thu Sep 22 16:52:12 2016 +0800
tree 7b816a98cc53cc1c5c78ed71ca5caaed1ce268d7
parent dca43016043d80924c2c23c77170b944c3fafb3e

fix testFling bug

If the items of listview are less than the total items the screen can display.
testFling will fail

This patch is dynamic to add adequate items to display

Change-Id: I1dce613256359f80997465417d8ca64d8bc875e3

tests/tests/widget/src/android/widget/cts/AbsListViewTest.java

diff --git a/tests/tests/widget/src/android/widget/cts/AbsListViewTest.java b/tests/tests/widget/src/android/widget/cts/AbsListViewTest.java
index cf8012e..b0c868c 100644
--- a/tests/tests/widget/src/android/widget/cts/AbsListViewTest.java
+++ b/tests/tests/widget/src/android/widget/cts/AbsListViewTest.java
@@ -49,6 +49,9 @@
 import android.widget.ListAdapter;
 import android.widget.ListView;
 import android.widget.TextView;
+import android.util.TypedValue;
+import android.util.DisplayMetrics;
+import android.view.WindowManager;
 
 import java.io.IOException;
 import java.util.ArrayList;
@@ -58,12 +61,12 @@
     private final String[] mShortList = new String[] {
         "This", "is", "short", "!",
     };
-    private final String[] mCountryList = new String[] {
+    private final String[] mSample = new String[] {
         "Argentina", "Australia", "China", "France", "Germany", "Italy", "Japan", "United States",
-        "Argentina", "Australia", "China", "France", "Germany", "Italy", "Japan", "United States",
-        "Argentina", "Australia", "China", "France", "Germany", "Italy", "Japan", "United States"
     };
 
+    private String[] mCountryList;
+
     private ListView mListView;
     private Activity mActivity;
     private Instrumentation mInstrumentation;
@@ -97,12 +100,36 @@
 
         mAdapter_short = new ArrayAdapter<String>(mActivity,
                 android.R.layout.simple_list_item_1, mShortList);
+
+        generateContriesList(mActivity);
         mAdapter_countries = new ArrayAdapter<String>(mActivity,
                 android.R.layout.simple_list_item_1, mCountryList);
 
         mListView = (ListView)mActivity.findViewById(R.id.listview_default);
     }
 
+    private void generateContriesList(Context context) {
+        //just for sure.
+        int totalN = getListViewVisibleItemsNumber(context) / mSample.length + 2;
+        mCountryList = new String[totalN * mSample.length];
+        for (int i = 0; i < totalN; i++) {
+            System.arraycopy(mSample, 0, mCountryList, i*mSample.length, mSample.length);
+        }
+    }
+
+    private int getListViewVisibleItemsNumber(Context context) {
+        TypedValue value = new TypedValue();
+        DisplayMetrics metrics = new DisplayMetrics();
+
+        context.getTheme().resolveAttribute(
+                android.R.attr.listPreferredItemHeight, value, true);
+        ((WindowManager) (context.getSystemService(Context.WINDOW_SERVICE)))
+                .getDefaultDisplay().getMetrics(metrics);
+
+        float itemHeight = TypedValue.complexToDimension(value.data, metrics);
+        return (int)(metrics.heightPixels / itemHeight) + 1;
+    }
+
     public void testConstructor() {
         /**
          * We can not test the constructors.