Android 上層實現IPC通訊

Android 上層實現IPC通訊 服務端，直接上代碼：

package com.kz.server;import android.app.Service;import android.content.Intent;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.util.Log;public class Server extends Service {private static final String TAG = "Server";private static final int BIND = 1100;private static final int UNBIND = 1200;class IncomingHandler extends Handler {@Overridepublic void handleMessage(Message msg) {Log.i(TAG, "----------handleMessage() ");switch (msg.what) {case BIND:Message bindMessage = Message.obtain(null, BIND);try {msg.replyTo.send(bindMessage);} catch (RemoteException e) {e.printStackTrace();}break;case UNBIND:Message unBindMessage = Message.obtain(null, UNBIND);try {msg.replyTo.send(unBindMessage);} catch (RemoteException e) {e.printStackTrace();}break;case CommandList.SUBTITLE:String[] resultSubtitles = getSubtitles();Message subtitleMessage = Message.obtain(null, CommandList.SUBTITLE);Bundle subtitleBundle = new Bundle();subtitleBundle.putStringArray("resultSubtitles", resultSubtitles);subtitleMessage.setData(subtitleBundle);try {msg.replyTo.send(subtitleMessage);} catch (RemoteException e) {e.printStackTrace();}break;case CommandList.TIME_CURRENT:Integer resultTimeCurrent = getTimeCurrent();Message timeCurrentMessage = Message.obtain(null, CommandList.TIME_CURRENT);Bundle timeCurrentBuddle = new Bundle();timeCurrentBuddle.putInt("resultTimeCurrent", resultTimeCurrent);timeCurrentMessage.setData(timeCurrentBuddle);try {msg.replyTo.send(timeCurrentMessage);} catch (RemoteException e) {e.printStackTrace();}break;case CommandList.TIME_TOTAL:Integer resultTimeTotal = getTimeTotal();Message timeTotalMessage = Message.obtain(null, CommandList.TIME_TOTAL);Bundle timeTotalBuddle = new Bundle();timeTotalBuddle.putInt("resultTimeTotal", resultTimeTotal);timeTotalMessage.setData(timeTotalBuddle);try {msg.replyTo.send(timeTotalMessage);} catch (RemoteException e) {e.printStackTrace();}break;case CommandList.LANGUAGE:String[] resultLanguages = getLanguages();Message languageMessage = Message.obtain(null, CommandList.LANGUAGE);Bundle languageBundle = new Bundle();languageBundle.putStringArray("resultLanguages", resultLanguages);languageMessage.setData(languageBundle);try {msg.replyTo.send(languageMessage);} catch (RemoteException e) {e.printStackTrace();}break;default:super.handleMessage(msg);}}}Messenger mMessenger = new Messenger(new IncomingHandler());@Overridepublic void onCreate() {Log.i(TAG, "----------onCreate() ");super.onCreate();}@Overridepublic IBinder onBind(Intent intent) {Log.i(TAG, "----------onBind() ");return mMessenger.getBinder();}@Overridepublic void onDestroy() {Log.i(TAG, "----------onDestroy() ");super.onDestroy();}private String[] getSubtitles() {Log.i(TAG, "----------getSubtitles() ");return new String[] { "中文字幕", "英文字幕", "泰文字幕" };}private String[] getLanguages() {Log.i(TAG, "----------getLanguages() ");return new String[] { "漢語", "英語", "泰語" };}private Integer getTimeTotal() {Log.i(TAG, "----------getTimeTotal() ");return 150000;}private Integer getTimeCurrent() {Log.i(TAG, "----------getTimeCurrent() ");return 132000;}}

Android 上層實現IPC通訊 服務端 代碼：

package com.kz.client;import android.app.Activity;import android.content.ComponentName;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.view.View;import android.widget.Button;import android.widget.LinearLayout;import android.widget.TextView;public class ClientActivity extends Activity implements ChangeInfoCallback {private boolean isBind = false;private TextView txt, txtsubtitle, txtlanguage;private LinearLayout layout;private Button bind, unbind, subtitle, language;private ManageChangeInfo manageInfo;@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);manageInfo = new ManageChangeInfo();manageInfo.registerCallback(this);txt = (TextView) findViewById(R.id.txt);txtsubtitle = (TextView) findViewById(R.id.txtsubtitle);txtlanguage = (TextView) findViewById(R.id.txtlanguage);bind = (Button) findViewById(R.id.bindBtn);unbind = (Button) findViewById(R.id.unbindBtn);subtitle = (Button) findViewById(R.id.subtitle);language = (Button) findViewById(R.id.language);layout = (LinearLayout) findViewById(R.id.layout);bind.setOnClickListener(click);unbind.setOnClickListener(click);subtitle.setOnClickListener(click);language.setOnClickListener(click);layout.setOnClickListener(click);}@Overrideprotected void onPause() {super.onPause();if (isBind) {unbindService(conn);isBind = false;}}private View.OnClickListener click = new View.OnClickListener() {@Overridepublic void onClick(View v) {int id = v.getId();switch (id) {case R.id.bindBtn:Intent service = new Intent("com.kz.dvd");bindService(service, conn, BIND_AUTO_CREATE);break;case R.id.unbindBtn:if (isBind && mService != null) {unbindService(conn);Message msg = Message.obtain(null, UNBIND);msg.replyTo = mMessenger;try {mService.send(msg);} catch (RemoteException e) {e.printStackTrace();}isBind = false;}break;case R.id.subtitle:sendMessage(CommandList.SUBTITLE);break;case R.id.language:sendMessage(CommandList.LANGUAGE);break;}}};private void sendMessage(int action) {if (isBind && mService != null) {Message msg = Message.obtain(null, action);msg.replyTo = mMessenger;try {mService.send(msg);} catch (RemoteException e) {e.printStackTrace();}}}private static final int BIND = 1100;private static final int UNBIND = 1200;private class IncomingHandler extends Handler {@Overridepublic void handleMessage(Message msg) {switch (msg.what) {case BIND:layout.setVisibility(View.VISIBLE);txt.setText("bind");break;case UNBIND:layout.setVisibility(View.INVISIBLE);txt.setText("unbind");txtsubtitle.setText("字幕-->");txtlanguage.setText("語言-->");break;case CommandList.SUBTITLE:String[] resultSubtitles = msg.getData().getStringArray("resultSubtitles");manageInfo.onChangeSubtitle(getStringFromArray(resultSubtitles));break;case CommandList.LANGUAGE:String[] resultLanguages = msg.getData().getStringArray("resultLanguages");manageInfo.onChangeLanguage(getStringFromArray(resultLanguages));break;default:super.handleMessage(msg);}}};private Messenger mMessenger = new Messenger(new IncomingHandler());private Messenger mService;private ServiceConnection conn = new ServiceConnection() {@Overridepublic void onServiceConnected(ComponentName name, IBinder service) {isBind = true;mService = new Messenger(service);Message msg = Message.obtain(null, BIND);msg.replyTo = mMessenger;try {mService.send(msg);} catch (RemoteException e) {e.printStackTrace();}}@Overridepublic void onServiceDisconnected(ComponentName name) {mService = null;}};@Overridepublic void changeSubtitle(String subtitle) {txtsubtitle.setText("字幕-->" + subtitle);}@Overridepublic void changeLanguage(String language) {txtlanguage.setText("語言-->" + language);}private String getStringFromArray(String[] strs) {StringBuilder sb = new StringBuilder();sb.append('[');for (String str : strs) {sb.append(str).append(",");}sb.deleteCharAt(sb.length()-1);sb.append(']');return sb.toString();}}

主程為上面兩個類，部分介面沒公布，參考資料為官網的services主題。