android初步实现Activity之间的跳转和数据传递

第一个Activity

package com.example.activity01;

import android.app.Activity;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.view.View.OnClickListener;

public class MainActivity extends Activity {
 class MyButtonListener implements OnClickListener{

  public void onClick(View v) {
   // TODO Auto-generated method stub
   //生成一个intent 对象
   Intent intent=new Intent();
   intent.setClass(MainActivity.this, OtherActivity.class);
   intent.putExtra("testIntent", "123");
   intent.putExtra("你妹","你妹的");
   MainActivity.this.startActivity(intent);
  }
 
  
 }

 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);
  TextView myTextView=(TextView)findViewById(R.id.myTestView);
  Button myButton=(Button)findViewById(R.id.myButton);
  myTextView.setText("我的第一个文本");
  myButton.setText("我的第一个按钮"+"\n"+"test");
  myButton.setOnClickListener(new MyButtonListener());
 }
  

 public boolean onCreateOptionsMenu(Menu menu) {
  getMenuInflater().inflate(R.menu.main, menu);
  return true;
 }
 

}

 接受数据的Activity

package com.example.activity01;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.widget.Button;
import android.widget.TextView;

public class OtherActivity extends Activity{

 private TextView myText2View=null;

 protected void onCreate(Bundle savedInstanceState) {
  // TODO Auto-generated method stub
  super.onCreate(savedInstanceState);
  setContentView(R.layout.other);
  Intent intent=getIntent();
  String value=intent.getStringExtra("testIntent");
  String value2=intent.getStringExtra("你妹");
   myText2View=(TextView)findViewById(R.id.myText2View);
   myText2View.setText(value);
   myText2View.setText(value2);
 }
 

}
第一个的布局

<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"
    android:orientation="vertical"
    tools:context=".MainActivity"
   
    >

    <TextView
        android:id="@+id/myTestView"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
       />
    <Button
        android:id="@+id/myButton"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"/>

</LinearLayout>
第二个的布局

<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"
    android:orientation="vertical"
    tools:context=".MainActivity"
    >
    <TextView
        android:id="@+id/myText2View"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        />

</LinearLayout>

Manifest注册文件

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.activity01"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="18" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="com.example.activity01.MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity
            android:name="com.example.activity01.OtherActivity"
            android:label="@string/other"
            android:theme="@android:style/Theme.Dialog"
          />
    </application>

</manifest>