fix header size bugs

Author: Wu Jing

app/src/main/java/com/race604/flyrefresh/sample/MainActivity.java

@@ -39,6 +39,7 @@ public class MainActivity extends AppCompatActivity implements FlyRefreshLayout.
 
     private ArrayList<ItemData> mDataSet = new ArrayList<>();
     private Handler mHandler = new Handler();
+    private LinearLayoutManager mLayoutManager;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
@@ -56,7 +57,8 @@ protected void onCreate(Bundle savedInstanceState) {
 
         mListView = (RecyclerView) findViewById(R.id.list);
 
-        mListView.setLayoutManager(new LinearLayoutManager(this));
+        mLayoutManager = new LinearLayoutManager(this);
+        mListView.setLayoutManager(mLayoutManager);
         mAdapter = new ItemAdapter(this);
 
         mListView.setAdapter(mAdapter);
@@ -74,6 +76,7 @@ private void addItemData() {
         ItemData itemData = new ItemData(Color.parseColor("#FFC970"), R.mipmap.ic_smartphone_white_24dp, "Magic Cube Show", new Date());
         mDataSet.add(0, itemData);
         mAdapter.notifyItemInserted(0);
+        mLayoutManager.scrollToPosition(0);
     }
 
     @Override

library/src/main/java/com/race604/flyrefresh/FlyRefreshLayout.java

@@ -10,9 +10,7 @@
 import android.view.ViewGroup;
 import android.view.animation.AccelerateInterpolator;
 import android.view.animation.DecelerateInterpolator;
-import android.widget.ImageView;
 
-import com.race604.flyrefresh.internal.MountainSceneDrawable;
 import com.race604.flyrefresh.internal.MountanScenceView;
 import com.race604.flyrefresh.internal.SimpleAnimatorListener;
 import com.race604.utils.UIUtils;
@@ -46,8 +44,6 @@ public FlyRefreshLayout(Context context, AttributeSet attrs, int defStyleAttr, i
     }
 
     private void init(Context context) {
-        int maxHeight = UIUtils.dpToPx(300);
-        setHeaderSize((int) (maxHeight * 0.8f), maxHeight, UIUtils.dpToPx(48));
         MountanScenceView headerView = new MountanScenceView(getContext());
         LayoutParams lp = new LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, mHeaderController.getMaxHeight());
         setHeaderView(headerView, lp);
@@ -56,7 +52,11 @@ private void init(Context context) {
     @Override
     protected void onFinishInflate() {
         super.onFinishInflate();
-        setActionDrawable(getResources().getDrawable(R.mipmap.ic_send));
+
+        // Set default action icon if user not override
+        if (getIconView() == null) {
+            setActionDrawable(getResources().getDrawable(R.mipmap.ic_send));
+        }
     }
 
     @Override

library/src/main/java/com/race604/flyrefresh/PullHeaderLayout.java

@@ -37,8 +37,9 @@ public class PullHeaderLayout extends ViewGroup {
 
     final static int ACTION_BUTTON_CENTER = UIUtils.dpToPx(40);
     final static int ACTION_ICON_SIZE = UIUtils.dpToPx(32);
-    private final static int DEFAULT_EXPAND = UIUtils.dpToPx(40);
-    private final static int DEFAULT_HEIGHT = 0;
+    private final static int DEFAULT_EXPAND = UIUtils.dpToPx(300);
+    private final static int DEFAULT_HEIGHT = UIUtils.dpToPx(240);
+    private final static int DEFAULT_SHRINK = UIUtils.dpToPx(48);
 
     private int mHeaderId = 0;
     private int mContentId = 0;
@@ -92,7 +93,7 @@ public PullHeaderLayout(Context context, AttributeSet attrs, int defStyleAttr, i
     private void init(Context context, AttributeSet attrs) {
         int headerHeight = DEFAULT_HEIGHT;
         int headerExpandHeight = DEFAULT_EXPAND;
-        int headerShrinkHeight = DEFAULT_HEIGHT;
+        int headerShrinkHeight = DEFAULT_SHRINK;
 
         if (attrs != null) {
             TypedArray arr = context.obtainStyledAttributes(attrs, R.styleable.PullHeaderLayout);
@@ -101,7 +102,7 @@ private void init(Context context, AttributeSet attrs) {
             headerExpandHeight = arr.getDimensionPixelOffset(R.styleable.PullHeaderLayout_phl_header_expand_height,
                     DEFAULT_EXPAND);
             headerShrinkHeight = arr.getDimensionPixelOffset(R.styleable.PullHeaderLayout_phl_header_shrink_height,
-                    DEFAULT_HEIGHT);
+                    DEFAULT_SHRINK);
 
             mHeaderId = arr.getResourceId(R.styleable.PullHeaderLayout_phl_header, mHeaderId);
             mContentId = arr.getResourceId(R.styleable.PullHeaderLayout_phl_content, mContentId);