更新back键代码：

wade-mobile-func/src/com/wade/mobile/func/MobileUI.java

@@ -18,6 +18,7 @@ import android.content.DialogInterface;
import android.content.Intent;
import android.graphics.Color;
import android.view.Gravity;
import android.view.View;
import android.webkit.WebView;
import android.widget.DatePicker;
import android.widget.LinearLayout;
@@ -53,6 +54,7 @@ import com.wade.mobile.ui.comp.dialog.YMPickerDialog;
import com.wade.mobile.ui.comp.notification.Notify;
import com.wade.mobile.ui.layout.ConstantParams;
import com.wade.mobile.ui.view.FlipperLayout;
import com.wade.mobile.ui.view.IFlipperLayout.IFlipperLayoutListener;
import com.wade.mobile.util.Constant;
import com.wade.mobile.util.Messages;
@@ -393,14 +395,52 @@ public class MobileUI extends Plugin {
		if (mainFlipper != null) {
//			Runtime runtime = Runtime.getRuntime();
//			runtime.exec("input keyevent " + KeyEvent.KEYCODE_BACK);
			
			 context.runOnUiThread(new Runnable() { public void run() {
			 mainFlipper.back(); } });
			
			final String tag = param.getString(0);
			if(!isNull(tag)){
				context.runOnUiThread(new Runnable() { public void run() {
					mainFlipper.back(tag); } });
			}else {				
				context.runOnUiThread(new Runnable() { public void run() {
					mainFlipper.back(); } });
			}
		} else {
			HintUtil.alert(context, "不支持back方法");
		}
	}
	
	private void backWithCallback(JSONArray param) throws Exception{
		final FlipperLayout mainFlipper = wademobile.getFlipperLayout();
		if(mainFlipper != null){
			final String tag = param.getString(0);
			if(!isNull(tag)){
				context.runOnUiThread(new Runnable() {public void run() {
						mainFlipper.back(new IFlipperLayoutListener() {
							
							@Override
							public void onBack(View currView, View preView) {
								// TODO Auto-generated method stub
								
							}
						});
					}
				});
			}else {
				context.runOnUiThread(new Runnable() {public void run() {
						mainFlipper.back(tag, new IFlipperLayoutListener() {
							
							@Override
							public void onBack(View currView, View preView) {
								// TODO Auto-generated method stub
								
							}
						});
					}
				});
			}
		}else {
			HintUtil.alert(context, "不支持back方法");
		}
	}
	/************************ 多WebView 结束 *****************************/