ANDROID_MARS学习笔记_S01原始版_018_SERVICE之Parcel

<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="com.parcel.MainActivity" >

<Button
android:id="@+id/saveDataBtn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="放数据" />
<Button
android:id="@+id/getDataBtn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="取数据"
android:layout_below="@id/saveDataBtn"/>

</RelativeLayout>

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

<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="21" />

<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".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>
</application>

</manifest>

package com.parcel;

import android.app.Activity;
import android.os.Bundle;
import android.os.Parcel;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

public class MainActivity extends Activity {

private Button getDataBtn,saveDataBtn;
private Parcel parcel = null;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
parcel = Parcel.obtain();
saveDataBtn = (Button) findViewById(R.id.saveDataBtn);
getDataBtn = (Button) findViewById(R.id.getDataBtn);
saveDataBtn.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
parcel.writeString("testparcel");
parcel.writeInt(666);
parcel.writeFloat(0.999F);
}
});

getDataBtn.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
parcel.setDataPosition(0);//把指针移到最前面
String str = parcel.readString();
int i = parcel.readInt();
float f= parcel.readFloat();
System.out.println(str);
System.out.println(i);
System.out.println(f);
}
});
}
}