标签:
课程名称 |
基于Android平台移动互联网开发 |
实验日期 |
2016年4月22日 |
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实验项目名称 |
BindService模拟通信 |
实验地点 |
S3010 |
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实验类型 |
□验证型 √设计型 □综合型 |
学 时 |
2 |
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一、实验目的及要求(本实验所涉及并要求掌握的知识点) |
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【目的】 实现启动端和BindService之间的双向通信 【要求】 1) 实现使用BindService服务播放项目源文件中的音乐; 2) 实现在启动端通过SeekBar控件控制音频音量大小; 3) 实现在启动端通过CheckBox控制音频静音。
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二、实验环境(本实验所使用的硬件设备和相关软件) |
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(1)PC机 (2)操作系统:Windows XP (3)软件: Eclipse, JDK1.6,Android SDK,ADT |
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三、实验内容及步骤 |
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1)在原有的Sudoku项目中的layout中添加一个musicsetting.xml文件 2)新建MusicSetting.java类 3)修改AndroidManifest.xml文件 4)新建MusicBindService类,使用Service服务播放项目源文件中的音乐,实现后台继续能播放音频。 |
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四、实验结果(本实验源程序清单及运行结果或实验结论、实验设计图) |
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代码: MainActivity.java代码: package com.example.shudu07; import com.example.shudu07.MusicvoiceService.Mbinder; import com.example.sukodu.R; import android.annotation.SuppressLint; import android.app.Activity; import android.content.ComponentName; import android.content.Context; import android.content.Intent; import android.content.ServiceConnection; import android.graphics.Color; import android.net.Uri; import android.os.Bundle; import android.os.IBinder; import android.util.Log; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.LinearLayout; import android.widget.TextView; import android.widget.Toast; public class MainActivity extends Activity { Button exitbtn, btphone, btmsn, btbackdeskt, bturl, btabout,btnewgame; Bundle bd; String account; String pwd; Intent intent; TextView tv; LinearLayout llayoutbg; Mbinder mb; MusicvoiceService bs; ServiceConnection conn=new ServiceConnection() { @Override public void onServiceDisconnected(ComponentName name) { // TODO Auto-generated method stub } @Override public void onServiceConnected(ComponentName name, IBinder service) { // TODO Auto-generated method stub mb=(Mbinder) service; bs=mb.getBackmusicService(); } }; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); Intent it = new Intent(); it.setAction("android.intent.action.BM"); bd = getIntent().getExtras(); account = bd.getString("account"); pwd = bd.getString("pwd"); tv = (TextView) findViewById(R.id.mainTitle); llayoutbg=(LinearLayout) findViewById(R.layout.activity_main); exitbtn = (Button) findViewById(R.id.exit_btn); btphone = (Button) findViewById(R.id.act_phone); btmsn = (Button) findViewById(R.id.act_msn); btnewgame=(Button) findViewById(R.id.new_btn); it.addCategory("android.intent.category.BMUSIC"); bindService(it, conn,Context.BIND_AUTO_CREATE); // Toast.makeText(this, "current volum:"+String.valueOf(bs.getvolum()), Toast.LENGTH_LONG).show(); btnewgame.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { // TODO Auto-generated method stub Intent it = new Intent(); it.setClass(MainActivity.this, GamesActivity.class); startActivity(it); } }); btabout = (Button) findViewById(R.id.about_btn); btmsn.setOnClickListener(new OnClickListener() { @Override public void onClick(View arg0) { // TODO 自动生成的方法存根 Intent it = new Intent(); it.setAction(Intent.ACTION_SENDTO); it.putExtra("sms_body", "jian"); it.setData(Uri.parse("smsto:61602")); startActivity(it); } }); btbackdeskt = (Button) findViewById(R.id.act_backdeskt); btbackdeskt.setOnClickListener(new OnClickListener() { @Override public void onClick(View arg0) { // TODO 自动生成的方法存根 Intent it = new Intent(); it.setAction(Intent.ACTION_MAIN); it.addCategory(Intent.CATEGORY_HOME); startActivity(it); finish(); } }); bturl = (Button) findViewById(R.id.act_url); bturl.setOnClickListener(new OnClickListener() { @Override public void onClick(View arg0) { // TODO 自动生成的方法存根 Intent it = new Intent(); it.setAction(Intent.ACTION_VIEW); it.setData(Uri.parse("http://www.baidu.com")); startActivity(it); } }); btphone.setOnClickListener(new OnClickListener() { @Override public void onClick(View arg0) { // TODO 自动生成的方法存根 Intent it = new Intent(); it.setAction(Intent.ACTION_CALL); it.setData(Uri.parse("tel:61602")); startActivity(it); } }); exitbtn.setOnClickListener(new OnClickListener() { @Override public void onClick(View arg0) { // TODO Auto-generated method stub intent = getIntent(); setResult(0x1716, intent); finish(); } }); btabout.setOnClickListener(new OnClickListener() { @Override public void onClick(View arg0) { // TODO Auto-generated method stub Intent it = new Intent(); it.setAction("android.intent.action.ABOUT"); it.addCategory("android.intent.category.CABOUT"); startActivity(it); } }); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.main, menu); getMenuInflater().inflate(R.menu.actionbar, menu); return true; } @SuppressLint("NewApi") @Override public boolean onOptionsItemSelected(MenuItem item) { // TODO Auto-generated method stub Color co = new Color(); Intent it =new Intent(); switch (item.getItemId()) { case R.id.red: { tv.setTextColor(co.RED); break; } case R.id.blue:{ tv.setTextColor(co.BLUE); break; } case R.id.green:{ tv.setTextColor(co.GREEN); break; } case R.id.cancel:{ it.setClass(MainActivity.this, LoginActivity.class); startActivity(it); finish(); break; } case R.id.bgred:{ llayoutbg.setBackgroundColor(co.RED); break; } case R.id.bggreen:{ llayoutbg.setBackgroundColor(co.GREEN); break; } case R.id.help:{ it.setClass(this, BangzActivity.class); startActivity(it); break; } case R.id.about:{ it.setClass(this, SecondActivity.class); startActivity(it); break; } case R.id.newgame:{ it.setClass(this, GamesActivity.class); startActivity(it); break; } case R.id.music: { it.setAction("android.intent.action.MUSIC"); Bundle bd = new Bundle(); bd.putBinder("service", mb); it.putExtras(bd); startActivity(it); break; } default:{ break; } } return super.onOptionsItemSelected(item); } } music.xml代码:
<?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" > <SeekBar android:id="@+id/seek1" android:layout_width="match_parent" android:layout_height="wrap_content" /> <CheckBox android:id="@+id/checkquit" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/quit" /> </LinearLayout>
ShezhiActivity.java代码: package com.example.shudu07; import com.example.shudu07.MusicvoiceService.Mbinder; import com.example.sukodu.R; import android.annotation.SuppressLint; import android.app.Activity; import android.os.Bundle; import android.widget.CheckBox; import android.widget.CompoundButton; import android.widget.CompoundButton.OnCheckedChangeListener; import android.widget.SeekBar; import android.widget.SeekBar.OnSeekBarChangeListener; public class ShezhiActivity extends Activity{ CheckBox cb; SeekBar sb; MusicvoiceService bs; @SuppressLint("NewApi") public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.music); Bundle bd=getIntent().getExtras(); bs=((Mbinder) bd.getBinder("service")).getBackmusicService(); sb=(SeekBar) findViewById(R.id.seek1); cb=(CheckBox) findViewById(R.id.checkquit); cb.setOnCheckedChangeListener(new OnCheckedChangeListener() { @Override public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { // TODO Auto-generated method stub bs.setsilent(isChecked); } }); sb.setOnSeekBarChangeListener(new OnSeekBarChangeListener() { @Override public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) { // TODO Auto-generated method stub bs.setvolum(progress); } @Override public void onStartTrackingTouch(SeekBar seekBar) { // TODO Auto-generated method stub } @Override public void onStopTrackingTouch(SeekBar seekBar) { // TODO Auto-generated method stub } }); } }
MusicvoiceService.java代码: package com.example.shudu07; import java.io.File; import java.io.IOException; import android.app.Service; import android.content.Context; import android.content.Intent; import android.media.AudioManager; import android.media.MediaPlayer; import android.os.Binder; import android.os.Environment; import android.os.IBinder; public class MusicvoiceService extends Service{ MediaPlayer mp=new MediaPlayer(); Mbinder binder=new Mbinder(); AudioManager audioManager; boolean isSilent=false; public void setsilent(boolean isSilent){ if(isSilent){ audioManager.setStreamVolume(AudioManager.STREAM_MUSIC,0,0); }else{ audioManager.setStreamVolume(AudioManager.STREAM_MUSIC,1000,1000); } } public void setvolum(int setting){ audioManager.setStreamVolume(AudioManager.STREAM_MUSIC,setting,100); } public void onCreate() { // TODO Auto-generated method stub File file=new File(Environment.getExternalStorageDirectory().getPath()+"/nanshannan.mp3"); if(file.exists()){ try { mp.setDataSource(file.getAbsolutePath()); mp.prepare(); } catch (IllegalArgumentException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (SecurityException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IllegalStateException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } audioManager=(AudioManager) getSystemService(Context.AUDIO_SERVICE); mp.start(); } super.onCreate(); } @Override public int onStartCommand(Intent intent, int flags, int startId) { // TODO Auto-generated method stub mp.start(); return super.onStartCommand(intent, flags, startId); } @Override public void onDestroy() { // TODO Auto-generated method stub super.onDestroy(); if(mp.isPlaying()){ mp.stop(); mp.release(); } } public class Mbinder extends Binder{ public MusicvoiceService getBackmusicService(){ return MusicvoiceService.this; } } @Override public IBinder onBind(Intent intent) { // TODO Auto-generated method stub return binder; } }
运行结果:(截图)
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五、实验总结(对本实验结果进行分析,实验心得体会及改进意见) |
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这次实验对我来说很难,从查找资料到询问同学,我试着从多个方向解决问题,这次实验最特别的一点是用到了真实的手机设备测试,所以需要用到6.0的安卓版本的虚拟机才能运行出效果。总的来说做的还是可以的,不过还有点小问题,有待解决。 | |||||
实验评语 |
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实验成绩 |
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指导教师签名: 年 月 日 |
标签:
原文地址:http://www.cnblogs.com/xkb07/p/5453022.html