主页加载数据时可按返回键取消加载(避免等待);

app/src/main/java/com/github/tvbox/osc/base/BaseActivity.java

@@ -123,6 +123,13 @@ public abstract class BaseActivity extends AppCompatActivity implements CustomAd
         }
     }
 
+    protected boolean isLoading() {
+        if (mLoadService != null && mLoadService.getCurrentCallback() != null) {
+            return mLoadService.getCurrentCallback().equals(LoadingCallback.class);
+        }
+        return false;
+    }
+
     protected void showEmpty() {
         if (null != mLoadService) {
             mLoadService.showCallback(EmptyCallback.class);

app/src/main/java/com/github/tvbox/osc/ui/activity/HomeActivity.java

@@ -268,11 +268,18 @@ public class HomeActivity extends BaseActivity {
         //mHandler.postDelayed(mFindFocus, 500);
     }
 
+
+    private boolean skipNextUpdate = false;
+
     private void initViewModel() {
         sourceViewModel = new ViewModelProvider(this).get(SourceViewModel.class);
         sourceViewModel.sortResult.observe(this, new Observer<AbsSortXml>() {
             @Override
             public void onChanged(AbsSortXml absXml) {
+                if (skipNextUpdate) {
+                    skipNextUpdate = false;
+                    return;
+                }
                 showSuccess();
                 if (absXml != null && absXml.classes != null && absXml.classes.sortList != null) {
                     sortAdapter.setNewData(DefaultConfig.adjustSort(ApiConfig.get().getHomeSourceBean().getKey(), absXml.classes.sortList, true));
@@ -466,6 +473,11 @@ public class HomeActivity extends BaseActivity {
     @SuppressLint("NotifyDataSetChanged")
     @Override
     public void onBackPressed() {
+        //打断加载
+        if(isLoading()){
+            refreshEmpty();
+            return;
+        }
         // 如果处于 VOD 删除模式，则退出该模式并刷新界面
         if (HawkConfig.hotVodDelete) {
             HawkConfig.hotVodDelete = false;
@@ -708,4 +720,12 @@ public class HomeActivity extends BaseActivity {
         intent.putExtras(bundle);
         HomeActivity.this.startActivity(intent);
     }
+
+    private void refreshEmpty()
+    {
+        skipNextUpdate=true;
+        showSuccess();
+        sortAdapter.setNewData(DefaultConfig.adjustSort(ApiConfig.get().getHomeSourceBean().getKey(), new ArrayList<>(), true));
+        initViewPager(null);
+    }
 }