{"id":1138,"date":"2022-04-20T11:20:03","date_gmt":"2022-04-20T03:20:03","guid":{"rendered":"http:\/\/www.max-shu.com\/blog\/?p=1138"},"modified":"2022-04-20T11:20:03","modified_gmt":"2022-04-20T03:20:03","slug":"android%e4%bd%bf%e7%94%a8messenger%e5%92%8csharedmemory%e5%ae%9e%e7%8e%b0%e8%b7%a8app%e7%9a%84%e6%b5%b7%e9%87%8f%e6%95%b0%e6%8d%ae%e4%bc%a0%e8%be%93","status":"publish","type":"post","link":"http:\/\/www.max-shu.com\/blog\/?p=1138","title":{"rendered":"Android\u4f7f\u7528Messenger\u548cSharedMemory\u5b9e\u73b0\u8de8app\u7684\u6d77\u91cf\u6570\u636e\u4f20\u8f93"},"content":{"rendered":"
\u00a0 \u00a0 Messenger\u662fandroid\u4e0b\u8f7b\u91cf\u7ea7\u7684\u8de8\u8fdb\u7a0b\u901a\u4fe1\u673a\u5236\uff0cSharedMemory\u53ef\u4ee5\u4f5c\u4e3aMessenger\u4e2dMessage\u7684Bundle\u6570\u636e\u6765\u53d1\u9001\uff0c\u4ece\u800c\u5b9e\u73b0\u6d77\u91cf\u6570\u636e\u4f20\u8f93\u3002<\/div>\n
<\/div>\n

\u4e00\u3001\u76f4\u63a5\u4f7f\u7528SharedMemory\u65b9\u5f0f<\/strong><\/h3>\n
<\/div>\n
Server\u7aef\uff1a<\/strong><\/div>\n
\u4e0b\u9762\u4e3aMessengerService\u7c7b\u7684\u4ee3\u7801\uff0c\u5728MainActivity\u91cc\u9762\u628a\u5b83\u542f\u52a8\u5373\u53ef\uff0c\u4e5f\u53ef\u4ee5\u5ba2\u6237\u7aefapp\u901a\u8fc7bindservice\u6765\u62c9\u8d77\u5b83\uff1a<\/strong><\/div>\n
package com.maxshu.messenger_sharedmemory;<\/div>\n
<\/div>\n
import android.app.NotificationChannel;<\/div>\n
import android.app.NotificationManager;<\/div>\n
import android.app.Service;<\/div>\n
import android.content.Intent;<\/div>\n
import android.os.Bundle;<\/div>\n
import android.os.Handler;<\/div>\n
import android.os.IBinder;<\/div>\n
import android.os.Message;<\/div>\n
import android.os.Messenger;<\/div>\n
import android.os.RemoteException;<\/div>\n
import android.os.SharedMemory;<\/div>\n
import android.system.ErrnoException;<\/div>\n
import android.util.Log;<\/div>\n
<\/div>\n
import java.nio.ByteBuffer;<\/div>\n
<\/div>\n
import androidx.core.app.NotificationCompat;<\/div>\n
<\/div>\n
public class MessengerService extends Service {<\/div>\n
private static final String TAG = “MessengerService”;<\/div>\n
<\/div>\n
private MessengerHandler mHandler=new MessengerHandler();<\/div>\n
private Messenger mMessenger=new Messenger(mHandler);<\/div>\n
<\/div>\n
public MessengerService() {<\/div>\n
Log.i(TAG,”MessengerService().”);<\/div>\n
}<\/div>\n
<\/div>\n
@Override<\/div>\n
public IBinder onBind(Intent intent) {<\/div>\n
Log.i(TAG,”onBind().”);<\/div>\n
return mMessenger.getBinder();<\/div>\n
}<\/div>\n
<\/div>\n
private static class MessengerHandler extends Handler {<\/div>\n
@Override<\/div>\n
public void handleMessage(Message msg) {<\/div>\n
super.handleMessage(msg);<\/div>\n
\/\/\u53d6\u51fa\u5ba2\u6237\u7aef\u7684\u6d88\u606f\u5185\u5bb9<\/div>\n
Bundle bundle = msg.getData();<\/div>\n
String clientMsg = bundle.getString(“client”);<\/div>\n
Log.i(TAG,”\u6765\u81ea\u5ba2\u6237\u7aef\u7684\u6d88\u606f\uff1a”+clientMsg);<\/div>\n
<\/div>\n
\/\/\u901a\u8fc7SharedMemory\u5171\u4eab\u5185\u5b58\u5f97\u5230\u7684\u6570\u636e<\/div>\n
int sharedMemoryLen = bundle.getInt(“sharedmemory_len”);<\/div>\n
SharedMemory sharedMemory = bundle.getParcelable(“sharedmemory_data”);<\/div>\n
if (sharedMemory == null) {<\/div>\n
Log.i(TAG,”sharedMemory\u4e3a\u7a7a\u3002”);<\/div>\n
return;<\/div>\n
}<\/div>\n
try {<\/div>\n
ByteBuffer byteBuffer = sharedMemory.mapReadOnly();<\/div>\n
int len = byteBuffer.limit() – byteBuffer.position();<\/div>\n
Log.i(TAG, “sharedMemory: len:” + len);<\/div>\n
byte[] bytes = new byte[sharedMemoryLen];<\/div>\n
byteBuffer.get(bytes);<\/div>\n
Log.i(TAG, “sharedMemory: bytes[0]:” + bytes[0]);<\/div>\n
Log.i(TAG, “sharedMemory: bytes[0]:” + bytes[1]);<\/div>\n
Log.i(TAG, “sharedMemory: bytes[sharedMemoryLen-2]:” + bytes[sharedMemoryLen – 2]);<\/div>\n
Log.i(TAG, “sharedMemory: bytes[sharedMemoryLen-1]:” + bytes[sharedMemoryLen – 1]);<\/div>\n
Log.i(TAG, “sharedMemory: bytes.length:” + bytes.length);<\/div>\n
Log.i(TAG, “sharedMemory: sharedMemory:” + sharedMemory.toString());<\/div>\n
Log.i(TAG, “sharedMemory: sharedMemory.size:” + sharedMemory.getSize());<\/div>\n
\/\/\u4f7f\u7528\u5b8cunmap\u540c\u65f6close sharedMemory\u91ca\u653e\u5185\u5b58<\/div>\n
SharedMemory.unmap(byteBuffer);<\/div>\n
sharedMemory.close(); \/\/\u5bf9\u7aefcreate\uff0c\u672c\u7aef\u4f7f\u7528\u5b8cclose.<\/div>\n
}catch (ErrnoException e){<\/div>\n
Log.i(TAG, “sharedMemory\u9519\u8bef\uff1a”);<\/div>\n
e.printStackTrace();<\/div>\n
return ;<\/div>\n
}<\/div>\n
<\/div>\n
\/\/\u65b0\u5efa\u4e00\u4e2aMessage\u5bf9\u8c61\uff0c\u4f5c\u4e3a\u56de\u590d\u5ba2\u6237\u7aef\u7684\u5bf9\u8c61<\/div>\n
Message message = Message.obtain();<\/div>\n
Bundle bundle1 = new Bundle();<\/div>\n
bundle1.putString(“service”,”\u4eca\u5929\u5c31\u4e0d\u53bb\u4e86\uff0c\u8fd8\u6709\u5f88\u591a\u4e1c\u897f\u8981\u5b66\uff01\uff01”);<\/div>\n
message.setData(bundle1);<\/div>\n
try {<\/div>\n
msg.replyTo.send(message);<\/div>\n
Log.i(TAG,”\u53d1\u9001\u6d88\u606f\u5230\u5ba2\u6237\u7aef\u3002”);<\/div>\n
} catch (RemoteException e) {<\/div>\n
e.printStackTrace();<\/div>\n
}<\/div>\n
}<\/div>\n
}<\/div>\n
<\/div>\n
@Override<\/div>\n
public void onCreate() {<\/div>\n
Log.i(TAG,”onCreate().”);<\/div>\n
super.onCreate();<\/div>\n
startForeground();<\/div>\n
}<\/div>\n
<\/div>\n
private void startForeground() {<\/div>\n
Log.i(TAG,”startForeground().”);<\/div>\n
String CHANNEL_ONE_ID = “com.maxshu.messenger_sharedmemory.channel”;<\/div>\n
String CHANNEL_ONE_NAME = “Channel One”;<\/div>\n
NotificationChannel notificationChannel = null;<\/div>\n
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O) {<\/div>\n
notificationChannel = new NotificationChannel(CHANNEL_ONE_ID,<\/div>\n
CHANNEL_ONE_NAME, NotificationManager.IMPORTANCE_DEFAULT);<\/div>\n
NotificationManager manager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);<\/div>\n
assert manager != null;<\/div>\n
manager.createNotificationChannel(notificationChannel);<\/div>\n
startForeground(1, new NotificationCompat.Builder(this, CHANNEL_ONE_ID).build());<\/div>\n
}<\/div>\n
}<\/div>\n
<\/div>\n
}<\/div>\n
<\/div>\n
Server\u7aef\u7684AndroidManifest.xml\uff1a<\/strong><\/div>\n
<?xml version=”1.0″ encoding=”utf-8″?><\/div>\n
<manifest xmlns:android=”http:\/\/schemas.android.com\/apk\/res\/android<\/a>“<\/div>\n
package=”com.maxshu.messenger_sharedmemory”><\/div>\n
<\/div>\n
<uses-permission android:name=”android.permission.FOREGROUND_SERVICE”\/><\/div>\n
<\/div>\n
<application<\/div>\n
android:allowBackup=”true”<\/div>\n
android:icon=”@mipmap\/ic_launcher”<\/div>\n
android:label=”@string\/app_name”<\/div>\n
android:roundIcon=”@mipmap\/ic_launcher_round”<\/div>\n
android:supportsRtl=”true”<\/div>\n
android:theme=”@style\/Theme.Messenger_SharedMemory”><\/div>\n
<service<\/div>\n
android:name=”.MessengerService”<\/div>\n
android:enabled=”true”<\/div>\n
android:exported=”true”><\/div>\n
<intent-filter><\/div>\n
<action android:name=”android.intent.action.MESSENGER” \/><\/div>\n
<\/intent-filter><\/div>\n
<\/service><\/div>\n
<\/div>\n
<activity<\/div>\n
android:name=”.MainActivity”<\/div>\n
android:exported=”true”><\/div>\n
<intent-filter><\/div>\n
<action android:name=”android.intent.action.MAIN” \/><\/div>\n
<\/div>\n
<category android:name=”android.intent.category.LAUNCHER” \/><\/div>\n
<\/intent-filter><\/div>\n
<\/activity><\/div>\n
<\/application><\/div>\n
<\/div>\n
<\/manifest><\/div>\n
<\/div>\n
Client\u7aef\uff1a<\/strong><\/div>\n
client\u7aef\u901a\u8fc7bindservice\u8c03\u7528\u670d\u52a1\u7aef\u4ee3\u7801\u5373\u53ef\uff1a<\/strong><\/div>\n
package com.maxshu.messenger_sharedmemory_2;<\/div>\n
<\/div>\n
import androidx.appcompat.app.AppCompatActivity;<\/div>\n
<\/div>\n
import android.content.ComponentName<\/a>;<\/div>\n
import android.content.Context;<\/div>\n
import android.content.Intent;<\/div>\n
import android.content.ServiceConnection;<\/div>\n
import android.os.Bundle;<\/div>\n
import android.os.Handler;<\/div>\n
import android.os.IBinder;<\/div>\n
import android.os.Message;<\/div>\n
import android.os.Messenger;<\/div>\n
import android.os.RemoteException;<\/div>\n
import android.os.SharedMemory;<\/div>\n
import android.system.ErrnoException;<\/div>\n
import android.system.OsConstants;<\/div>\n
import android.util.Log;<\/div>\n
<\/div>\n
import java.nio.ByteBuffer;<\/div>\n
<\/div>\n
public class MainActivity extends AppCompatActivity {<\/div>\n
private static final String TAG = “MainActivity”;<\/div>\n
<\/div>\n
private Messenger mService;<\/div>\n
private GetRelyHandler mGetRelyHandler = new GetRelyHandler();<\/div>\n
private Messenger mRelyMessenger = new Messenger(mGetRelyHandler);<\/div>\n
<\/div>\n
private ServiceConnection mConnection = new ServiceConnection() {<\/div>\n
@Override<\/div>\n
public void onServiceConnected(ComponentName name, IBinder service) {<\/div>\n
Log.i(TAG, “onServiceConnected.”);<\/div>\n
\/\/\u83b7\u53d6\u670d\u52a1\u7aef\u5173\u8054\u7684Messenger\u5bf9\u8c61<\/div>\n
mService = new Messenger(service);<\/div>\n
\/\/\u521b\u5efaMessage\u5bf9\u8c61<\/div>\n
Message message = Message.obtain();<\/div>\n
Bundle bundle = new Bundle();<\/div>\n
bundle.putString(“client”, “\u4eca\u5929\u51fa\u53bb\u73a9\u5417\uff1f”);<\/div>\n
<\/div>\n
\/\/\u4f7f\u7528SharedMemory\u5171\u4eab\u5185\u5b58\u6765\u8de8app\u8fdb\u7a0b\u4f20\u8f93\u5927\u91cf\u6570\u636e<\/div>\n
byte[] bytes = new byte[1024*1024*4]; \/\/4MB<\/div>\n
bytes[0] = ‘a’;<\/div>\n
bytes[1] = ‘5’;<\/div>\n
bytes[1024*1024*4-2] = ‘5’;<\/div>\n
bytes[1024*1024*4-1] = ‘a’;<\/div>\n
try {<\/div>\n
SharedMemory sharedMemory = SharedMemory.create(“sharedmemory”, bytes.length);<\/div>\n
ByteBuffer buffer = sharedMemory.mapReadWrite();<\/div>\n
buffer.put(bytes);<\/div>\n
\/\/\u628asharedMemory\u6743\u9650\u8bbe\u7f6e\u4e3a\u53ea\u8bfb\uff0ccreate\u9ed8\u8ba4\u662f\u8bfb\u5199\u6743\u9650\u90fd\u6709\uff0c\u8fd9\u91cc\u53ef\u4ee5\u907f\u514d\u5ba2\u6237\u7aef\u66f4\u6539\u6570\u636e<\/div>\n
sharedMemory.setProtect(OsConstants.PROT_READ);<\/div>\n
\/\/\u4f7f\u7528\u5b8c\u9700\u8981unmap<\/div>\n
SharedMemory.unmap(buffer);<\/div>\n
bundle.putInt(“sharedmemory_len”, bytes.length);<\/div>\n
bundle.putParcelable(“sharedmemory_data”, sharedMemory);<\/div>\n
Log.i(TAG, “sharedMemory: bytes.length:”+bytes.length);<\/div>\n
Log.i(TAG, “sharedMemory: sharedMemory:”+sharedMemory.toString());<\/div>\n
Log.i(TAG, “sharedMemory: sharedMemory.size:”+sharedMemory.getSize());<\/div>\n
}catch (ErrnoException e){<\/div>\n
Log.i(TAG, “sharedMemory\u9519\u8bef\uff1a”);<\/div>\n
e.printStackTrace();<\/div>\n
return;<\/div>\n
}<\/div>\n
<\/div>\n
\/\/\u8bbe\u7f6e\u6570\u636e\u5185\u5bb9<\/div>\n
message.setData(bundle);<\/div>\n
\/\/\u5728message\u4e2d\u6dfb\u52a0\u4e00\u4e2a\u56de\u590dmRelyMessenger\u5bf9\u8c61<\/div>\n
message.replyTo = mRelyMessenger;<\/div>\n
try {<\/div>\n
mService.send(message);<\/div>\n
Log.i(TAG, “\u53d1\u9001\u6d88\u606f\u5230\u670d\u52a1\u5668\u7aef\u3002”);<\/div>\n
} catch (RemoteException e) {<\/div>\n
e.printStackTrace();<\/div>\n
}<\/div>\n
}<\/div>\n
<\/div>\n
@Override<\/div>\n
public void onServiceDisconnected(ComponentName name) {<\/div>\n
Log.i(TAG, “onServiceDisconnected.”);<\/div>\n
mService = null;<\/div>\n
}<\/div>\n
};<\/div>\n
<\/div>\n
public static class GetRelyHandler extends Handler {<\/div>\n
@Override<\/div>\n
public void handleMessage(Message msg) {<\/div>\n
super.handleMessage(msg);<\/div>\n
Bundle bundle = msg.getData();<\/div>\n
String serviceMsg = bundle.getString(“service”);<\/div>\n
Log.i(TAG, “\u6765\u81ea\u670d\u52a1\u7aef\u7684\u56de\u590d\uff1a” + serviceMsg);<\/div>\n
}<\/div>\n
}<\/div>\n
<\/div>\n
@Override<\/div>\n
protected void onCreate(Bundle savedInstanceState) {<\/div>\n
super.onCreate(savedInstanceState);<\/div>\n
setContentView(R.layout.activity_main);<\/div>\n
<\/div>\n
\/\/\u542f\u52a8\u670d\u52a1\u7aef\u7684MessengerService<\/div>\n
Intent intent = new Intent();<\/div>\n
\/\/\u548c\u670d\u52a1\u7aefAndroidManifest.xml\u7684MessengerServiceService\u7684intent-filter\u7684Action name\u4fdd\u6301\u4e00\u81f4\uff1a<\/div>\n
intent.setAction(“android.intent.action.MESSENGER”);<\/div>\n
intent.setPackage(“com.maxshu.messenger_sharedmemory”); \/\/\u670d\u52a1\u7aef\u7684\u5305\u540d<\/div>\n
\/\/\u542f\u52a8\u670d\u52a1\uff0c\u5982\u679c\u670d\u52a1\u7aefService\u6ca1\u6709\u542f\u52a8\uff0c\u5219\u81ea\u52a8\u62c9\u8d77<\/div>\n
boolean rtn = bindService(intent, mConnection, Context.BIND_AUTO_CREATE);<\/div>\n
if(rtn){<\/div>\n
Log.i(TAG, “\u542f\u52a8\u670d\u52a1\u7aefMessengerService\u6210\u529f\u3002”);<\/div>\n
}else {<\/div>\n
Log.i(TAG, “\u542f\u52a8\u670d\u52a1\u7aefMessengerService\u5931\u8d25\u3002”);<\/div>\n
}<\/div>\n
}<\/div>\n
<\/div>\n
@Override<\/div>\n
protected void onDestroy() {<\/div>\n
super.onDestroy();<\/div>\n
\/\/\u6ce8\u9500\u7ed1\u5b9a<\/div>\n
unbindService(mConnection);<\/div>\n
}<\/div>\n
}<\/div>\n
<\/div>\n
Client\u7aef\u7684AndroidManifest.xml\uff1a<\/strong><\/div>\n
<?xml version=”1.0″ encoding=”utf-8″?><\/div>\n
<manifest xmlns:android=”http:\/\/schemas.android.com\/apk\/res\/android<\/a>“<\/div>\n
package=”com.maxshu.messenger_sharedmemory_2″><\/div>\n
<\/div>\n
<!–Android11\u4e4b\u540e\uff0c\u5fc5\u987b\u52a0\u5165\u8be5queries\u6761\u76ee\uff0c\u624d\u80fd\u62c9\u8d77\u5176\u4ed6app\u7684Service –><\/div>\n
<queries><\/div>\n
<package android:name=”com.maxshu.messenger_sharedmemory” \/><\/div>\n
<\/queries><\/div>\n
<\/div>\n
<application<\/div>\n
android:allowBackup=”true”<\/div>\n
android:icon=”@mipmap\/ic_launcher”<\/div>\n
android:label=”@string\/app_name”<\/div>\n
android:roundIcon=”@mipmap\/ic_launcher_round”<\/div>\n
android:supportsRtl=”true”<\/div>\n
android:theme=”@style\/Theme.Messenger_SharedMemory”><\/div>\n
<activity<\/div>\n
android:name=”.MainActivity”<\/div>\n
android:exported=”true”><\/div>\n
<intent-filter><\/div>\n
<action android:name=”android.intent.action.MAIN” \/><\/div>\n
<\/div>\n
<category android:name=”android.intent.category.LAUNCHER” \/><\/div>\n
<\/intent-filter><\/div>\n
<\/activity><\/div>\n
<\/application><\/div>\n
<\/div>\n
<\/manifest><\/div>\n
<\/div>\n

\u4e8c\u3001\u95f4\u63a5\u4f7f\u7528Binder\u65b9\u5f0f\uff08\u5e95\u5c42\u5b9e\u73b0\u4e5f\u662f\u7528\u7684\u5171\u4eab\u5185\u5b58\u65b9\u5f0f\uff09<\/strong><\/h3>\n
\u00a0\u00a0 \u00a0\u4f7f\u7528Binder\u8c03\u7528\u4f20\u56fe\uff0c\u662f\u5f80Intent\u91cc\u585e\u4e86\u4e2aBinder\u5bf9\u8c61\uff0c\u7b49\u5230\u53e6\u4e00\u4e2a\u7ec4\u4ef6\u542f\u52a8\u4e4b\u540e\uff0c\u8bfb\u51fa\u8fd9\u4e2aBinder\u5bf9\u8c61\uff0c\u8c03\u7528\u5b83\u7684getBitmap\u51fd\u6570\u62ff\u5230Bitmap\u3002<\/div>\n
\u6ce8\u610f\u4e0b\uff0cputBinder \u65b9\u5f0f \u53ea\u5728Android 4.3 \uff08api 18\uff09\u53ca\u4ee5\u4e0a\u624d\u6709\uff0c\u6240\u4ee5\u6211\u4eec\u505a\u4e0b\u5224\u65ad\u3002<\/div>\n
<\/div>\n
\u53d1\u9001\u7aef\uff1a<\/strong><\/div>\n
private void ipcBitmapBinder() {<\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Intent intent = new Intent(this, SecondActivity.class);<\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Bundle bundle = new Bundle();<\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {<\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0bundle.putBinder(“bitmap”, new ImageBinder(mBitmap));<\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}<\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0intent.putExtras(bundle);<\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0startActivity(intent);<\/div>\n
\u00a0\u00a0\u00a0\u00a0}<\/div>\n
<\/div>\n
\u63a5\u6536\u7aef\uff1a<\/strong><\/div>\n
Bundle bundle = getIntent().getExtras();<\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if (bundle != null) {<\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {<\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0ImageBinder imageBinder = (ImageBinder) bundle.getBinder(“bitmap”);<\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Bitmap bitmap = imageBinder.getBitmap();<\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0mTv.setText(String.format((“bitmap\u5927\u5c0f\u4e3a%dkB”), bitmap.getByteCount() \/ 1024));<\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0mIv.setImageBitmap(bitmap);<\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}<\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}<\/div>\n
<\/div>\n
ImageBinder \u662f\u4e2a\u7ee7\u627f\u81eaBinder\u7684\u7c7b\uff0c\u63d0\u4f9b\u83b7\u53d6\u56fe\u7247\u7684\u65b9\u5f0f\uff1a<\/div>\n
class ImageBinder extends Binder {<\/div>\n
\u00a0\u00a0\u00a0\u00a0private Bitmap bitmap;<\/div>\n
\u00a0\u00a0\u00a0\u00a0public ImageBinder(Bitmap bitmap) {<\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0this.bitmap = bitmap;<\/div>\n
\u00a0\u00a0\u00a0\u00a0}<\/div>\n
\u00a0\u00a0\u00a0\u00a0Bitmap getBitmap() {<\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return bitmap;<\/div>\n
\u00a0\u00a0\u00a0\u00a0}<\/div>\n
}<\/div>\n
<\/div>\n","protected":false},"excerpt":{"rendered":"

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