定义工具类中函数随时打开某Activity

public class MeApplication extends Application {

public void onCreate() {
super.onCreate();
MeApplication.context = getApplicationContext();

}

public static Context getAppContext() {
return MeApplication.context;
}

}

package mgwaiter.jdjt.com.utils;

import android.content.Context;
import android.content.Intent;
import android.os.Bundle;

import mgwaiter.jdjt.com.common.MeApplication;
import mgwaiter.jdjt.com.navigate.map.MapMainActivity;

/**
* Created by Add by renjianhong on 2015/12/10.
*/
public class Util {

public static void openMap(long mallid){
Context context = MeApplication.getAppContext();
Intent intent = new Intent(context,MapMainActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
Bundle bundle = new Bundle();
bundle.putString("mallid", String.valueOf(mallid));
intent.putExtras(bundle);
context.startActivity(intent);
}
}