Android--Activity在跳轉時攜帶資料

Android--Activity在跳轉時攜帶資料

首先看看兩種傳遞方法樣本：（一個簡單姻緣計算機）

主Activity

import android.os.Bundle;import android.app.Activity;import android.content.Intent;import android.view.Menu;import android.view.View;public class MainActivity extends Activity {    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);    }    public void click(View v){    Intent intent = new Intent(this, SecondActivity.class);    //把資料封裝至intent對象中//    intent.putExtra("malename", "張三");//    intent.putExtra("femalename", "芙蓉姐姐");        //把資料封裝至bundle對象中    Bundle bundle = new Bundle();    bundle.putString("malename", "張三");    bundle.putString("femalename", "芙蓉姐姐");        //把bundle對象封裝至intent對象中    intent.putExtras(bundle);    startActivity(intent);    }    }

import java.util.Random;import android.app.Activity;import android.content.Intent;import android.os.Bundle;import android.widget.TextView;public class SecondActivity extends Activity {@Overrideprotected void onCreate(Bundle savedInstanceState) {// TODO Auto-generated method stubsuper.onCreate(savedInstanceState);setContentView(R.layout.activity_second);Intent intent = getIntent();//從intent對象中把封裝好的資料取出來//String maleName = intent.getStringExtra("malename");//String feMaleName = intent.getStringExtra("femalename");Bundle bundle = intent.getExtras();String maleName = bundle.getString("malename");String feMaleName = bundle.getString("femalename");Random rd = new Random();int yinyuan = rd.nextInt(100);TextView tv = (TextView) findViewById(R.id.tv);tv.setText(maleName + "和" + feMaleName + "的姻緣值為" + yinyuan);}}

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:paddingbottom="@dimen/activity_vertical_margin" android:paddingleft="@dimen/activity_horizontal_margin" android:paddingright="@dimen/activity_horizontal_margin" android:paddingtop="@dimen/activity_vertical_margin" tools:context=".MainActivity" android:orientation="vertical">    <textview android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="這是姻緣計算機，很準的喲">    <edittext android:id="@+id/et_malename" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="張三">    <edittext android:id="@+id/et_femalename" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="芙蓉姐姐"><button android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="計算" android:onclick="click"></button></edittext></edittext></textview></linearlayout>

activity_second.xml：

<relativelayout 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:paddingbottom="@dimen/activity_vertical_margin" android:paddingleft="@dimen/activity_horizontal_margin" android:paddingright="@dimen/activity_horizontal_margin" android:paddingtop="@dimen/activity_vertical_margin" tools:context=".MainActivity">    <textview android:id="@+id/tv" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="這是第二個Activity"></textview></relativelayout>