[mobile] clean code

app/src/main/java/com/fongmi/android/tv/ui/activity/BaseFragment.java

@@ -31,4 +31,8 @@ public abstract class BaseFragment extends Fragment {
 
     protected void initEvent() {
     }
+
+    public boolean canBack() {
+        return true;
+    }
 }

app/src/main/java/com/fongmi/android/tv/utils/Clock.java

@@ -30,6 +30,14 @@ public class Clock {
         this.date = new Date();
     }
 
+    public static void stop() {
+        get().release();
+    }
+
+    public static void start() {
+        start(null);
+    }
+
     public static void start(TextView view) {
         start(view, "HH:mm:ss");
     }
@@ -56,8 +64,8 @@ public class Clock {
     private void doJob(TextView view) {
         try {
             date.setTime(System.currentTimeMillis());
-            view.setText(formatter.format(date));
             if (callback != null) callback.onTimeChanged();
+            if (view != null) view.setText(formatter.format(date));
         } catch (Exception ignored) {
         }
     }

app/src/main/java/com/fongmi/android/tv/utils/Prefers.java

@@ -163,14 +163,6 @@ public class Prefers {
         put("across", across);
     }
 
-    public static boolean isRotate() {
-        return getBoolean("rotate", true);
-    }
-
-    public static void putRotate(boolean rotate) {
-        put("rotate", rotate);
-    }
-
     public static boolean getUpdate() {
         return getBoolean("update", true);
     }

app/src/mobile/java/com/fongmi/android/tv/ui/activity/MainActivity.java

@@ -30,14 +30,6 @@ public class MainActivity extends BaseActivity implements NavigationBarView.OnIt
     private ActivityMainBinding mBinding;
     private boolean confirm;
 
-    private VodFragment getVodFragment() {
-        return (VodFragment) mManager.getFragment(0);
-    }
-
-    private SettingFragment getSettingFragment() {
-        return (SettingFragment) mManager.getFragment(1);
-    }
-
     @Override
     protected ViewBinding getBinding() {
         return mBinding = ActivityMainBinding.inflate(getLayoutInflater());
@@ -127,9 +119,9 @@ public class MainActivity extends BaseActivity implements NavigationBarView.OnIt
 
     @Override
     public void onBackPressed() {
-        if (getSettingFragment().isVisible()) {
+        if (mManager.isVisible(1)) {
             mBinding.navigation.setSelectedItemId(R.id.vod);
-        } else if (getVodFragment().canBack()) {
+        } else if (mManager.canBack(0)) {
             if (!confirm) setConfirm();
             else finish();
         }

app/src/mobile/java/com/fongmi/android/tv/ui/custom/FragmentStateManager.java

@@ -6,6 +6,8 @@ import androidx.fragment.app.Fragment;
 import androidx.fragment.app.FragmentManager;
 import androidx.fragment.app.FragmentTransaction;
 
+import com.fongmi.android.tv.ui.activity.BaseFragment;
+
 public abstract class FragmentStateManager {
 
     private final FragmentManager fm;
@@ -30,11 +32,21 @@ public abstract class FragmentStateManager {
         ft.commitNowAllowingStateLoss();
     }
 
-    public String getTag(long id) {
-        return "android:switcher:" + id;
+    private String getTag(int position) {
+        return "android:switcher:" + position;
+    }
+
+    public BaseFragment getFragment(int position) {
+        return (BaseFragment) fm.findFragmentByTag(getTag(position));
+    }
+
+    public boolean isVisible(int position) {
+        Fragment fragment = getFragment(position);
+        return fragment != null && fragment.isVisible();
     }
 
-    public Fragment getFragment(long id) {
-        return fm.findFragmentByTag(getTag(id));
+    public boolean canBack(int position) {
+        BaseFragment fragment = getFragment(position);
+        return fragment != null && fragment.canBack();
     }
 }

app/src/mobile/java/com/fongmi/android/tv/ui/fragment/VodFragment.java

@@ -47,12 +47,8 @@ public class VodFragment extends BaseFragment implements SiteCallback, FilterCal
         return new VodFragment();
     }
 
-    private HomeFragment getHomeFragment() {
-        return (HomeFragment) mBinding.pager.getAdapter().instantiateItem(mBinding.pager, 0);
-    }
-
-    private TypeFragment getTypeFragment() {
-        return (TypeFragment) mBinding.pager.getAdapter().instantiateItem(mBinding.pager, mBinding.pager.getCurrentItem());
+    private BaseFragment getFragment() {
+        return (BaseFragment) mBinding.pager.getAdapter().instantiateItem(mBinding.pager, mBinding.pager.getCurrentItem());
     }
 
     private Site getSite() {
@@ -147,7 +143,7 @@ public class VodFragment extends BaseFragment implements SiteCallback, FilterCal
 
     @Override
     public void setFilter(String key, String value) {
-        getTypeFragment().setFilter(key, value);
+        ((TypeFragment) getFragment()).setFilter(key, value);
     }
 
     public void toggleLink(int dy) {
@@ -169,13 +165,9 @@ public class VodFragment extends BaseFragment implements SiteCallback, FilterCal
         }
     }
 
+    @Override
     public boolean canBack() {
-        try {
-            if (mBinding.pager.getCurrentItem() == 0) return getHomeFragment().canBack();
-            else return getTypeFragment().canBack();
-        } catch (Exception e) {
-            return true;
-        }
+        return getFragment().canBack();
     }
 
     @Override

app/src/mobile/java/com/fongmi/android/tv/ui/fragment/child/HomeFragment.java

@@ -99,12 +99,6 @@ public class HomeFragment extends BaseFragment implements VodAdapter.OnClickList
         mHistoryAdapter.notifyItemRangeChanged(0, mHistoryAdapter.getItemCount());
     }
 
-    public boolean canBack() {
-        if (!mHistoryAdapter.isDelete()) return true;
-        setHistoryDelete(false);
-        return false;
-    }
-
     @Override
     public void onItemClick(Vod item) {
         if (item.shouldSearch()) onLongClick(item);
@@ -147,4 +141,11 @@ public class HomeFragment extends BaseFragment implements VodAdapter.OnClickList
         super.onResume();
         getHistory();
     }
+
+    @Override
+    public boolean canBack() {
+        if (!mHistoryAdapter.isDelete()) return true;
+        setHistoryDelete(false);
+        return false;
+    }
 }

app/src/mobile/java/com/fongmi/android/tv/ui/fragment/child/TypeFragment.java

@@ -125,12 +125,6 @@ public class TypeFragment extends BaseFragment implements CustomScroller.Callbac
         getVideo(typeId, "1");
     }
 
-    public boolean canBack() {
-        if (mTypeIds.size() == 0) return true;
-        refresh(2);
-        return false;
-    }
-
     @Override
     public void onLoadMore(String page) {
         if (isFolder()) return;
@@ -162,4 +156,11 @@ public class TypeFragment extends BaseFragment implements CustomScroller.Callbac
         super.onConfigurationChanged(newConfig);
         mGridLayoutManager.setSpanCount(Product.getColumn(getActivity()));
     }
+
+    @Override
+    public boolean canBack() {
+        if (mTypeIds.size() == 0) return true;
+        refresh(2);
+        return false;
+    }
 }