android aidl通訊兩個APP之間的應用
阿新 • • 發佈:2019-02-11
一:資料提供端程式碼(資料提供APP)
1.java程式碼:Service
aidl檔案package com.example.remoteaidi; import com.example.remoteaidi.aidl.StudentAidl; import android.app.Service; import android.content.Intent; import android.os.IBinder; import android.os.RemoteException; public class StudentService extends Service { private String[] studentNo = {"王1","2","王3","王4","王月4","宋6"}; private IBinder binder = new StudentQueryBinder(); @Override public IBinder onBind(Intent intent) { return binder; } class StudentQueryBinder extends StudentAidl.Stub { @Override public String getStudent(int no) throws RemoteException { int l = studentNo.length; if(l<0) { no = 0; } if(no>=l) { no = l - 1; } return studentNo[no]; } } }
package com.example.remoteaidi.aidl;
interface StudentAidl {
String getStudent(int no);
}
清單檔案
<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.example.remoteaidi" android:versionCode="1" android:versionName="1.0" > <uses-sdk android:minSdkVersion="8" android:targetSdkVersion="18" /> <application android:allowBackup="true" android:icon="@drawable/ic_launcher" android:label="@string/app_name" android:theme="@style/AppTheme" > <service android:name=".StudentService"> <intent-filter> <action android:name="student.query"/> <category android:name="android.intent.category.DEFAULT"></category> </intent-filter> </service> </application> </manifest>
二:請求端程式碼
package com.example.aidlclient; import com.example.remoteaidi.aidl.StudentAidl; import android.app.Activity; import android.content.ComponentName; import android.content.Intent; import android.content.ServiceConnection; import android.os.Bundle; import android.os.IBinder; import android.os.RemoteException; import android.view.View; import android.widget.EditText; import android.widget.TextView; public class MainActivity extends Activity { private ServiceConnectionImpl sci ; private StudentAidl student; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); Intent intent = new Intent(); intent.setAction("student.query"); sci = new ServiceConnectionImpl(); bindService(intent, sci, BIND_AUTO_CREATE); } public void queryOnClick(View v) { EditText et_no_text = (EditText) findViewById(R.id.et_no_text); String no = et_no_text.getText().toString(); String sname; try { sname = student.getStudent(new Integer(no)); TextView tv_no = (TextView) findViewById(R.id.tv_no); tv_no.setText(sname); } catch (NumberFormatException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (RemoteException e) { // TODO Auto-generated catch block e.printStackTrace(); } } class ServiceConnectionImpl implements ServiceConnection { @Override public void onServiceConnected(ComponentName name, IBinder service) { student = StudentAidl.Stub.asInterface(service); } @Override public void onServiceDisconnected(ComponentName name) { student = null; } } @Override protected void onDestroy() { // TODO Auto-generated method stub super.onDestroy(); if(sci != null) { unbindService(sci); } } }
aidl檔案與上一個aidl檔案相同
package com.example.remoteaidi.aidl;
interface StudentAidl {
String getStudent(int no);
}
佈局檔案
<RelativeLayout 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:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".MainActivity" >
<EditText
android:id="@+id/et_no_text"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
<Button
android:id="@+id/btn_query"
android:onClick="queryOnClick"
android:text="查詢"
android:layout_below="@id/et_no_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
<TextView
android:id="@+id/tv_no"
android:layout_below="@id/btn_query"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
</RelativeLayout>
清單檔案<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.aidlclient"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="18" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.example.aidlclient.MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>