Merge pull request #293 from okcaptain/dev

fix View.generateViewId

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

@@ -1,10 +1,10 @@
 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;
+import com.fongmi.android.tv.utils.ViewUtil;
 
 public class Func {
 
@@ -20,7 +20,7 @@ public class Func {
 
     public Func(int resId) {
         this.resId = resId;
-        this.id = View.generateViewId();
+        this.id = ViewUtil.generateViewId();
         this.setDrawable();
     }
 

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

@@ -0,0 +1,29 @@
+package com.fongmi.android.tv.utils;
+
+import android.os.Build;
+import android.view.View;
+
+import java.util.concurrent.atomic.AtomicInteger;
+
+public class ViewUtil {
+
+    private static final AtomicInteger viewIdGenerator = new AtomicInteger(1);
+
+    public static int generateViewId() {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) return View.generateViewId();
+        else return generateUniqueViewId();
+    }
+
+    private static int generateUniqueViewId() {
+        while (true) {
+            final int result = viewIdGenerator.get();
+            // aapt-generated IDs have the high byte nonzero; clamp to the range under that.
+            int newValue = result + 1;
+            if (newValue > 0x00FFFFFF) newValue = 1; // Roll over to 1, not 0.
+            if (viewIdGenerator.compareAndSet(result, newValue)) {
+                return result;
+            }
+        }
+    }
+
+}