android 使用application内全局context

首先，写一个类继承Appclication

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

public class MyApplication extends Application{
    private static MyApplication mcontext;
    @Override
    public void onCreate() {
        // TODO Auto-generated method stub
        super.onCreate();
        mcontext=this;
    }
    public static Context getAppContext(){
        return mcontext;
    }
    public static Resources getAppResources(){
        return getAppResources();
    }
}

然后在manifest文件中的application中添加

android:name=".MyApplication"

这样，就能在整个application内使用MyApplication.getAppContext()来获得context而不用到处传递了