* [android] fix wrong draw on first download iconfont

android/sdk/src/main/java/com/taobao/weex/ui/component/WXText.java

@@ -18,8 +18,12 @@
  */
 package com.taobao.weex.ui.component;
 
+import android.content.BroadcastReceiver;
 import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
 import android.support.annotation.NonNull;
+import android.support.v4.content.LocalBroadcastManager;
 import android.text.Layout;
 import android.view.ViewGroup;
 
@@ -29,6 +33,9 @@
 import com.taobao.weex.dom.WXDomObject;
 import com.taobao.weex.ui.ComponentCreator;
 import com.taobao.weex.ui.view.WXTextView;
+import com.taobao.weex.utils.FontDO;
+import com.taobao.weex.utils.TypefaceUtil;
+import com.taobao.weex.utils.WXLogUtils;
 
 import java.lang.reflect.InvocationTargetException;
 
@@ -42,6 +49,8 @@ public class WXText extends WXComponent<WXTextView> {
    * The default text size
    **/
   public static final int sDEFAULT_SIZE = 32;
+  private BroadcastReceiver mTypefaceObserver;
+  private String mFontFamily;
 
   public static class Creator implements ComponentCreator {
 
@@ -102,12 +111,14 @@ protected boolean setProperty(String key, Object param) {
       case Constants.Name.FONT_STYLE:
       case Constants.Name.COLOR:
       case Constants.Name.TEXT_DECORATION:
-      case Constants.Name.FONT_FAMILY:
       case Constants.Name.TEXT_ALIGN:
       case Constants.Name.TEXT_OVERFLOW:
       case Constants.Name.LINE_HEIGHT:
       case Constants.Name.VALUE:
         return true;
+      case Constants.Name.FONT_FAMILY:
+        registerTypefaceObserver(param.toString());
+        return true;
       default:
         return super.setProperty(key, param);
     }
@@ -145,4 +156,43 @@ protected Object convertEmptyProperty(String propName, Object originalValue) {
     }
     return super.convertEmptyProperty(propName, originalValue);
   }
+
+  @Override
+  public void destroy() {
+    super.destroy();
+    if (getContext() != null && mTypefaceObserver != null) {
+      LocalBroadcastManager.getInstance(getContext()).unregisterReceiver(mTypefaceObserver);
+    }
+  }
+
+  private void registerTypefaceObserver(String desiredFontFamily) {
+    if (getContext() == null) {
+      WXLogUtils.w("WXText", "Content is null on register typeface observer");
+    }
+    mFontFamily = desiredFontFamily;
+    mTypefaceObserver = new BroadcastReceiver() {
+      @Override
+      public void onReceive(Context context, Intent intent) {
+        String fontFamily = intent.getStringExtra("fontFamily");
+        if (!mFontFamily.equals(fontFamily)) {
+          return;
+        }
+
+        FontDO fontDO = TypefaceUtil.getFontDO(fontFamily);
+        if (fontDO != null && fontDO.getTypeface() != null) {
+          Layout layout = getHostView().getTextLayout();
+          if (layout != null) {
+            layout.getPaint().setTypeface(fontDO.getTypeface());
+            WXLogUtils.d("WXText", "Apply font family " + fontFamily + " to paint");
+          } else {
+            WXLogUtils.w("WXText", "Layout not created");
+          }
+          getHostView().invalidate();
+        }
+        WXLogUtils.d("WXText", "Font family " + fontFamily + " is available");
+      }
+    };
+
+    LocalBroadcastManager.getInstance(getContext()).registerReceiver(mTypefaceObserver, new IntentFilter(TypefaceUtil.ACTION_TYPE_FACE_AVAILABLE));
+  }
 }

android/sdk/src/main/java/com/taobao/weex/utils/TypefaceUtil.java

@@ -18,9 +18,11 @@
  */
 package com.taobao.weex.utils;
 
+import android.content.Intent;
 import android.graphics.Paint;
 import android.graphics.Typeface;
 import android.net.Uri;
+import android.support.v4.content.LocalBroadcastManager;
 import android.text.TextUtils;
 
 import com.taobao.weex.WXEnvironment;
@@ -43,6 +45,8 @@ public class TypefaceUtil {
   private final static String TAG = "TypefaceUtil";
   private final static Map<String, FontDO> sCacheMap = new HashMap<>(); //Key: fontFamilyName
 
+  public static final String ACTION_TYPE_FACE_AVAILABLE = "type_face_available";
+
   public static void putFontDO(FontDO fontDO) {
     if (fontDO != null && !TextUtils.isEmpty(fontDO.getFontFamilyName())) {
       sCacheMap.put(fontDO.getFontFamilyName(), fontDO);
@@ -223,6 +227,10 @@ private static boolean loadLocalFontFile(String path, String fontFamily) {
           if(WXEnvironment.isApkDebugable()) {
             WXLogUtils.d(TAG, "load local font file success");
           }
+
+          Intent intent = new Intent(ACTION_TYPE_FACE_AVAILABLE);
+          intent.putExtra("fontFamily", fontFamily);
+          LocalBroadcastManager.getInstance(WXEnvironment.getApplication()).sendBroadcast(intent);
           return true;
         }
       } else {