关于Activity之间的消息的传递。利用Bundle是一种比较方便的办法。 程序的效果是活动A向B跳转的同时发送一字符串，B读出字符串。 先在AndroidManifest.xml中定义一个新的Activity，target：
[XML]代码
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<?xml version="1.0" encoding="utf-8"?>
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<manifest xmlns:android="http://schemas.android.com/apk/res/android"
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package="com.ray.test"
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android:versionCode="1"
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android:versionName="1.0">
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<application android:icon="@drawable/icon" android:label="@string/app_name">
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<activity android:name=".TestBundle"
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android:label="@string/app_name">
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<intent-filter>
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<action android:name="android.intent.action.MAIN" />
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<category android:name="android.intent.category.LAUNCHER" />
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</intent-filter>
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</activity>
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<activity android:name=".Target"></activity>
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</application>
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<uses-sdk android:minSdkVersion="3" />
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</manifest>
[代码] TestBundle.java
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package com.ray.test;
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import android.app.Activity;
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import android.content.Intent;
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import android.os.Bundle;
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import android.view.MotionEvent;
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public class TestBundle extends Activity {
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public void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.main);
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}
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public boolean onTouchEvent(MotionEvent event) {
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Intent intent = new Intent();
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intent.setClass(TestBundle.this, Target.class);
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Bundle mBundle = new Bundle();
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mBundle.putString("Data", "ray'blog");//压入数据
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intent.putExtras(mBundle);
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startActivity(intent);
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finish();
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return super.onTouchEvent(event);
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}
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}
[代码] TargetActivity.java
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package com.ray.test;
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import android.app.Activity;
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import android.os.Bundle;
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public class TargetActivity extends Activity{
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public void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.main);
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Bundle bundle = getIntent().getExtras();
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String data=bundle.getString("Data");//读出数据
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setTitle(data);
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}
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}
