【移動應(yīng)用開發(fā)技術(shù)】Android activity 參數(shù)傳遞

【移動應(yīng)用開發(fā)技術(shù)】Androidactivity參數(shù)傳遞

Androidactivity參數(shù)傳遞經(jīng)過網(wǎng)上的資料收集終于測試成功，可以兩個Activity之間相互傳遞參數(shù)。先將部分代碼帖出來(關(guān)鍵代碼已注釋)，僅供參考。第一個activity:activity_main導(dǎo)入相關(guān)包importandroid.os.Bundle;importandroid.view.Menu;importandroid.view.MenuItem;importandroid.view.View;importandroid.view.View.OnClickListener;importandroid.util.Log;importandroid.widget.Button;importandroid.widget.TextView;importandroid.content.Intent;importandroid.app.Activity;button按鈕傳遞參數(shù)：

privateButtonbt;

privateTextViewtw1;

protectedvoidonCreate(BundlesavedInstanceState){

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

bt=(Button)findViewById(R.id.btnBack);

tw1=(TextView)findViewById(R.id.edtRec);

bt.setOnClickListener(newOnClickListener(){

@Override

publicvoidonClick(Viewv){

//TODOAuto-generatedmethodstub

Intentit=newIntent();

//傳遞參數(shù)

it.putExtra("name",tw1.getText().toString());

it.setClass(MainActivity.this,ShowInfo.class);

//startActivity(it);//不接收返回值

startActivityForResult(it,1);//接收返回值

這里參數(shù)必須>0否則onActivityResult無法執(zhí)行

//MainActivity.this.finish();

//終止Activity

}

});

}接收返回參數(shù)：前面的按鈕必須設(shè)置為startActivityForResult(it,1);//接收返回值

/**

*

接收帶有返回值的Activity方法

*/

@Override

protectedvoidonActivityResult(intrequestCode,intresultCode,Intentdata)

{

super.onActivityResult(requestCode,resultCode,data);

Log.i("Main","requestCode:"+requestCode+"resultCode:"+resultCode);

//這里requestCode=1,resultCode=-1

if(requestCode==1){

tw1.setText(data.getStringExtra("return"));

}

//

tw1.setText(data.getStringExtra("return"));

}

第二個activityShowInfo:

privateTextViewtv1;

privateButtonbtnBack;

@Override

protectedvoidonCreate(BundlesavedInstanceState){

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_show_info);

//新頁面接收數(shù)據(jù)

Intentintent=this.getIntent();

Stringname=intent.getStringExtra("name");

Log.i("獲取到的name值為",name);

tv1=(TextView)findViewById(R.id.edtRec);

tv1.setText("傳過來的值為:"+name);

btnBack=(Button)findViewById(R.id.btnBack);//定義返回按鈕

btnBack.setOnClickListener(newOnClickListener()

{

@Override

publicvoidonClick(Viewv)

//返回按鈕傳遞參數(shù)給主頁面

{

Intentintent=newIntent();

intent.putExtra("return",tv1.getText().toString());//傳遞參數(shù)到return

set