【移動(dòng)應(yīng)用開發(fā)技術(shù)】Android中怎么實(shí)現(xiàn)activity與fragment間的通信

【移動(dòng)應(yīng)用開發(fā)技術(shù)】Android中怎么實(shí)現(xiàn)activity與fragment間的通信

Android中怎么實(shí)現(xiàn)activity與fragment間的通信，針對(duì)這個(gè)問題，這篇文章詳細(xì)介紹了相對(duì)應(yīng)的分析和解答，希望可以幫助更多想解決這個(gè)問題的小伙伴找到更簡單易行的方法。一、APP構(gòu)成MainActivity+底部導(dǎo)航欄；二、通信目的MainActivity中成員方法test（），fragment中經(jīng)test（）方法判斷后，方可執(zhí)行下一步操作，如執(zhí)行界面跳轉(zhuǎn)；例：public

class

MainActivity

extends

Activity{

public

boolean

mBaiDuSDK_is_Ok

=

false;

public

boolean

ismBaiDuSDK_is_Ok()

{

return

mBaiDuSDK_is_Ok;

}

public

void

setmBaiDuSDK_is_Ok(boolean

mBaiDuSDK_is_Ok)

{

this.mBaiDuSDK_is_Ok

=

mBaiDuSDK_is_Ok;

}

}如上述示例代碼，在fragment中需要對(duì)mBaiDuSDK_is_Ok進(jìn)行值判斷，執(zhí)行界面跳轉(zhuǎn)；三、解決方法public

class

Test1Fragment

extends

Fragment

implements

OnClickListener

{

private

Activity

mActivity;

@Override

public

View

onCreateView(LayoutInflater

inflater,

ViewGroup

container,

Bundle

savedInstanceState)

{

mActivity

=

getActivity();//在界面創(chuàng)建時(shí)，定義父Activity

view

=

inflater.inflate(R.layout.fragment_test1,

container,

false);

return

view;

}

@Override

public

void

onViewCreated(View

view,

Bundle

savedInstanceState)

{

//

fragment_test1

布局中的一個(gè)測試按鈕

Button

test_button=

(Button)

view.findViewById(R.id.

test_button);

test_button

setOnClickListener(this);//設(shè)置按鈕監(jiān)聽事件

super.onViewCreated(view,

savedInstanceState);

}

@Override

public

void

onClick(View

view)

{

//

TODO

Auto-generated

method

stub

switch

(view.getId())

{

//測試按鈕監(jiān)聽事件

case

R.id.test_button:

//

mActivity即為代表的父Activity

Intent

intent

=

new

Intent(mActivity,

SecondActivity.class);

Log.i("BAIDUSDK",

"驗(yàn)證："

+

((MainActivity)

mActivity).ismBaiDuSDK_is_Ok());

//最為關(guān)鍵的一步，fragment調(diào)用父activity的成員方法，進(jìn)行通信

if

(((MainActivity)

mActivity).ismBaiDuSDK_is_Ok())

{

startActivity(intent);

}

el