android 获取全局context

package com.wanghao.networktest;

import android.app.Application;
import android.content.Context;

/**
* Created by Administrator on 2016/1/4.
*/
public class MyApplication extends Application {
private static Context context;

@Override
public void onCreate() {
context = getApplicationContext();
}

public static Context getContext(){
return context;
}
}

在任何地方都可调用：Tosat.maketext(MyApplication.getContext(),"",.....);