當Activity類動態載入fragment時可以通過fragment的setArguments()傳入值，並在fragment類中通過fragment的getArguments()方法獲得傳入的值；
下面演示一下程式碼：

MainActivity.java:

主要步驟（該步驟必須在fragmentTransaction.commit()之前完成）：
1.建立一個fragment例項
2.建立一個Bundle 物件（其為鍵值對儲存，可以理解為一個Map<K,V>）：  Bundle bundle = new Bundle();
3.向bundle中傳值：bundle.putString
 
("str","這是MainActivity傳來的值~");
4.將bundle通過setArguments(bundle)方法設定進fragment01：fragment01.setArguments(bundle);

package activity.wyc.com.fragmentdemo0305;

import android.app.FragmentManager;
import android.app.FragmentTransaction;
import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;

import
 
 com.vrinux.fragment.Fragment01;


public class MainActivity extends ActionBarActivity {

    private FragmentManager fragmentManager;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        Fragment01 fragment01 = new
 
 Fragment01();
        Bundle bundle = new Bundle();
        bundle.putString("str","這是MainActivity傳來的值~");
        fragment01.setArguments(bundle);

        fragmentManager = getFragmentManager();
        FragmentTransaction fragmentTransaction =fragmentManager.beginTransaction();
        fragmentTransaction.replace(R.id.fm01id,fragment01);
        fragmentTransaction.commit();
    }
}

Fragment01.java:

獲取傳來的值：
String str = (String)getArguments().get(“str”);

package com.vrinux.fragment;

import android.app.Fragment;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

import activity.wyc.com.fragmentdemo0305.R;

/**
 * Created by yc on 2015/3/5.
 */
public class Fragment01 extends Fragment {

    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

        View view = inflater.inflate(R.layout.fragment01layout, null);
        TextView tvObj = (TextView)view.findViewById(R.id.fm01tvid);

        String str = (String)getArguments().get("str");

        tvObj.setText(str);

        return view;
    }
}

activity_main.xml：

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:orientation="vertical"
    tools:context=".MainActivity">

    <FrameLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/fm01id"></FrameLayout>

</LinearLayout>

fragment01layout.xml:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="30sp"
        android:id="@+id/fm01tvid"/>


</LinearLayout>