Android之使用Bundle进行IPC _Android

丈夫志四海，万里犹比邻。这篇文章主要讲述Android之使用Bundle进行IPC相关的知识，希望能为你提供帮助。
一、Bundle进行IPC介绍
【Android之使用Bundle进行IPC】四大组件中的三大组件（Activity、Service、Receiver）都是支持在Intent中传递Bundle数据的，由于Bundle实现了Parcelable接口，所以它可以方便地在不同的进程之间传输。当然，传输的数据必须能够被序列化，比如基本类型、实现了Parcelable接口的对象、实现了Serializable接口的对象以及一些android支持的特殊对象，具体内容可以看Bundle这个类，就可以看到所有它支持的类型。Bundle不支持的类型无法通过它在进程间传递数据。
二、使用方法
1.打包数据发送

Intent intent1 = new Intent(MainActivity.this, ThirdActivity.class); Bundle bundle = new Bundle(); bundle.putCharSequence("name", "zhangmiao"); bundle.putInt("age", 20); intent1.putExtras(bundle); startActivity(intent1);

2.接受数据

Intent intent = getIntent(); Bundle bundle = intent.getExtras(); String name = bundle.getString("name"); int age = bundle.getInt("age");

3.在AndroidManifest.xml中开启多进程

< activity ... android:process=":remote" />

三、小案例
1.修改activity_main.xml文件

< ?xml version="1.0" encoding="utf-8"?> < 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:fitsSystemWindows="true" tools:context="com.zhangmiao.ipcdemo.MainActivity" android:orientation="vertical" > < TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center_horizontal" android:text="Bundler"> < /TextView> < Button android:id="@+id/bundler_button" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="send message"> < /Button> < /LinearLayout>

2.添加activity_third.xml文件

< ?xml version="1.0" encoding="utf-8"?> < LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical"> < TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center_horizontal" android:text="at activity Third" /> < TextView android:id="@+id/textView1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Activity Third" /> < /LinearLayout>

3.添加ThirdActivity类

package com.zhangmiao.ipcdemo; import android.app.Activity; import android.content.Intent; import android.os.Bundle; import android.widget.TextView; /** * Created by zhangmiao on 2016/12/27. */ public class ThirdActivity extends Activity {@Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_third); Intent intent = getIntent(); Bundle bundle = intent.getExtras(); String name = bundle.getString("name"); int age = bundle.getInt("age"); TextView textView = (TextView) findViewById(R.id.textView1); textView.setText("name:" + name + ",age:" + age); } }

4.修改MainActivity类

package com.zhangmiao.ipcdemo; import android.content.ComponentName; import android.content.Context; import android.content.Intent; import android.content.ServiceConnection; import android.os.Bundle; import android.os.Handler; import android.os.IBinder; import android.os.Message; import android.os.Messenger; import android.os.RemoteException; import android.support.v7.app.AppCompatActivity; import android.util.Log; import android.view.View; import android.widget.Button; import android.widget.TextView; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.io.ObjectOutputStream; import java.io.Serializable; public class MainActivity extends AppCompatActivity {private static final String TAG = "MainActivity"; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); Button button = (Button) findViewById(R.id.bundler_button); button.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Intent intent1 = new Intent(MainActivity.this, ThirdActivity.class); Bundle bundle = new Bundle(); bundle.putCharSequence("name", "zhangmiao"); bundle.putInt("age", 20); intent1.putExtras(bundle); startActivity(intent1); } }); } }

5.修改AndroidManifest.xml文件

< ?xml version="1.0" encoding="utf-8"?> < manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.zhangmiao.ipcdemo"> < uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> < application android:allowBackup="true" android:icon="@mipmap/ic_launcher" android:label="@string/app_name" android:supportsRtl="true" android:theme="@style/AppTheme"> < activity android:name=".MainActivity" android:label="@string/app_name" android:launchMode="standard" android:theme="@style/AppTheme.NoActionBar"> < intent-filter> < action android:name="android.intent.action.MAIN" /> < category android:name="android.intent.category.LAUNCHER" /> < /intent-filter> < /activity> < activity android:name=".ThirdActivity" android:configChanges="screenLayout" android:label="@string/app_name" android:process=":remote" /> < /application> < /manifest>

完整代码下载地址：https://github.com/ZhangMiao147/IPCDemo