一、Bundle進(jìn)行IPC介紹
四大組件中的三大組件（Activity、Service、Receiver）都是支持在Intent中傳遞Bundle數(shù)據(jù)的，由于Bundle實(shí)現(xiàn)了Parcelable接口，所以它可以方便地在不同的進(jìn)程之間傳輸。當(dāng)然，傳輸?shù)臄?shù)據(jù)必須能夠被序列化，比如基本類型、實(shí)現(xiàn)了Parcelable接口的對(duì)象、實(shí)現(xiàn)了Serializable接口的對(duì)象以及一些Android支持的特殊對(duì)象，具體內(nèi)容可以看Bundle這個(gè)類，就可以看到所有它支持的類型。Bundle不支持的類型無法通過它在進(jìn)程間傳遞數(shù)據(jù)。
二、使用方法
1.打包數(shù)據(jù)發(fā)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.接受數(shù)據(jù)
Intent intent = getIntent();Bundle bundle = intent.getExtras();String name = bundle.getString("name");int age = bundle.getInt("age"); 3.在AndroidManifest.xml中開啟多進(jìn)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類
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類
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>
完整代碼下載地址：demo
以上就是本文的全部內(nèi)容，希望對(duì)大家的學(xué)習(xí)有所幫助，也希望大家多多支持武林網(wǎng)。
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