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app/src/leanback/java/com/fongmi/android/tv/bean/Func.java

@@ -1,6 +1,7 @@
 package com.fongmi.android.tv.bean;
 
 import android.annotation.SuppressLint;
+import android.view.View;
 
 import com.fongmi.android.tv.R;
 import com.fongmi.android.tv.utils.ResUtil;
@@ -8,7 +9,10 @@ import com.fongmi.android.tv.utils.ResUtil;
 public class Func {
 
     private final int resId;
+    private final int id;
     private int drawable;
+    private int nextFocusLeft;
+    private int nextFocusRight;
 
     public static Func create(int resId) {
         return new Func(resId);
@@ -16,6 +20,7 @@ public class Func {
 
     public Func(int resId) {
         this.resId = resId;
+        this.id = View.generateViewId();
         this.setDrawable();
     }
 
@@ -23,10 +28,30 @@ public class Func {
         return resId;
     }
 
+    public int getId() {
+        return id;
+    }
+
     public int getDrawable() {
         return drawable;
     }
 
+    public int getNextFocusLeft() {
+        return nextFocusLeft;
+    }
+
+    public void setNextFocusLeft(int nextFocusLeft) {
+        this.nextFocusLeft = nextFocusLeft;
+    }
+
+    public int getNextFocusRight() {
+        return nextFocusRight;
+    }
+
+    public void setNextFocusRight(int nextFocusRight) {
+        this.nextFocusRight = nextFocusRight;
+    }
+
     public String getText() {
         return ResUtil.getString(resId);
     }

app/src/leanback/java/com/fongmi/android/tv/ui/activity/HomeActivity.java

@@ -238,6 +238,8 @@ public class HomeActivity extends BaseActivity implements CustomTitleView.Listen
         adapter.add(Func.create(R.string.home_keep));
         adapter.add(Func.create(R.string.home_push));
         adapter.add(Func.create(R.string.home_setting));
+        ((Func) adapter.get(0)).setNextFocusLeft(((Func) adapter.get(adapter.size() - 1)).getId());
+        ((Func) adapter.get(adapter.size() - 1)).setNextFocusRight(((Func) adapter.get(0)).getId());
         return new ListRow(adapter);
     }
 

app/src/leanback/java/com/fongmi/android/tv/ui/presenter/FuncPresenter.java

@@ -30,8 +30,11 @@ public class FuncPresenter extends Presenter {
     public void onBindViewHolder(Presenter.ViewHolder viewHolder, Object object) {
         Func item = (Func) object;
         ViewHolder holder = (ViewHolder) viewHolder;
+        holder.binding.getRoot().setId(item.getId());
         holder.binding.text.setText(item.getText());
         holder.binding.icon.setImageResource(item.getDrawable());
+        if (item.getNextFocusLeft() > 0) holder.binding.getRoot().setNextFocusLeftId(item.getNextFocusLeft());
+        if (item.getNextFocusRight() > 0) holder.binding.getRoot().setNextFocusRightId(item.getNextFocusRight());
         setOnClickListener(holder, view -> mListener.onItemClick(item));
     }