解决求助场景的内存泄露

modules/mogo-module-v2x/src/main/java/com/mogo/module/v2x/scenario/scene/help/V2XCarForHelpScenario.java

@@ -41,9 +41,11 @@ public class V2XCarForHelpScenario extends AbsV2XScenario<Boolean> implements IM
     private volatile static V2XCarForHelpScenario mV2XCarForHelpScenario;
     private CountDownTimer mMySeekHelpCountDown;
     private V2XSeekHelpDialog v2xFaultHelpDialog;
+    private V2XSeekHelpButton mV2XSeekHelpButton;
 
     private V2XCarForHelpScenario() {
-        setV2XButton(new V2XSeekHelpButton());
+        mV2XSeekHelpButton = new V2XSeekHelpButton();
+        setV2XButton(mV2XSeekHelpButton);
         V2XServiceManager.getMoGoStatusManager().registerStatusChangedListener(TAG, StatusDescriptor.SEEK_HELPING, this);
     }