bindService android AIDL 总是 return false
bindService android AIDL always return false
我想提供一个可以被其他应用程序调用的服务。因此,我有一个服务和一个援助。但是当我尝试有一个单独的应用程序来绑定此服务 (bindService) 时,它只是 returns me false 这意味着失败。这是我的代码。
我正在使用 Pro 书中的代码 Android 2
我已经在其他类似的问题上尝试过很多解决方案,但没有适合我的解决方案。
我已尝试修复 aidl intent 过滤器,但它仍然无法正常工作
我已经尝试在客户端应用程序中修复程序包名称和 class 名称,但仍然无法正常工作。
请帮帮我!
在客户端:
// IStockQuoteService.aidl
package id.ac.ui.cs.mobileprogramming.ahmad_fauzan_amirul_isnain.stockquoteservice;
// Declare any non-default types here with import statements
interface IStockQuoteService {
double getQuote(String ticker);
}
package id.ac.ui.cs.mobileprogramming.ahmad_fauzan_amirul_isnain.stockquoteclient;
import id.ac.ui.cs.mobileprogramming.ahmad_fauzan_amirul_isnain.stockquoteservice.IStockQuoteService;
import android.app.Activity;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.ServiceConnection;
import android.os.Bundle;
import android.os.IBinder;
import android.os.RemoteException;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Toast;
public class MainActivity extends Activity {
protected static final String TAG = "StockQuoteClient";
private IStockQuoteService stockService = null;
private Button bindBtn;
private Button callBtn;
private Button unbindBtn;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
bindBtn = (Button)findViewById(R.id.bindBtn);
bindBtn.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View view) {
Intent intent = new Intent();
intent.setClassName("com.id.ac.ui.cs.mobileprogramming" +
".ahmad_fauzan_amirul_isnain.stockquoteservice",
"com.id.ac.ui.cs.mobileprogramming.ahmad_fauzan_amirul_isnain" +
".stockquoteservice.IStockQuoteService");
Log.d("Hasil", String.valueOf(bindService(intent,
serConn, Context.BIND_AUTO_CREATE)));
bindBtn.setEnabled(false);
callBtn.setEnabled(true);
unbindBtn.setEnabled(true);
}});
callBtn = (Button)findViewById(R.id.callBtn);
callBtn.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View view) {
callService();
}});
callBtn.setEnabled(false);
unbindBtn = (Button)findViewById(R.id.unbindBtn);
unbindBtn.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View view) {
unbindService(serConn);
bindBtn.setEnabled(true);
callBtn.setEnabled(false);
unbindBtn.setEnabled(false);
}});
unbindBtn.setEnabled(false);
}
private void callService() {
try {
double val = stockService.getQuote("SYH");
Toast.makeText(MainActivity.this, "Value from service is "+val,
Toast.LENGTH_SHORT).show();
} catch (RemoteException ee) {
Log.e("MainActivity", ee.getMessage(), ee);
}
}
private ServiceConnection serConn = new ServiceConnection() {
@Override
public void onServiceConnected(ComponentName name, IBinder service)
{
Log.v(TAG, "onServiceConnected() called");
stockService = IStockQuoteService.Stub.asInterface(service);
callService();
}
@Override
public void onServiceDisconnected(ComponentName name) {
Log.v(TAG, "onServiceDisconnected() called");
stockService = null;
}
};
}
服务中:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="id.ac.ui.cs.mobileprogramming.ahmad_fauzan_amirul_isnain.stockquoteservice">
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<service android:name="StockQuoteService">
<intent-filter>
<action android:name="com.id.ac.ui.cs.mobileprogramming.ahmad_fauzan_amirul_isnain.stockquoteservice.IStockQuoteService"
/>
</intent-filter>
</service>
</application>
</manifest>
package id.ac.ui.cs.mobileprogramming.ahmad_fauzan_amirul_isnain.stockquoteservice;
import android.app.Service;
import android.content.Intent;
import android.os.IBinder;
import android.os.RemoteException;
import android.util.Log;
public class StockQuoteService extends Service
{
private static final String TAG = "StockQuoteService";
public class StockQuoteServiceImpl extends IStockQuoteService.Stub
{
@Override
public double getQuote(String ticker) throws RemoteException
{
Log.v(TAG, "getQuote() called for " + ticker);
return 20.0;
}
}
@Override
public void onCreate() {
super.onCreate();
Log.v(TAG, "onCreate() called");
}
@Override
public void onDestroy()
{
super.onDestroy();
Log.v(TAG, "onDestroy() called");
}
@Override
public void onStart(Intent intent, int startId) {
super.onStart(intent, startId);
Log.v(TAG, "onStart() called");
}
@Override
public IBinder onBind(Intent intent)
{
Log.v(TAG, "onBind() called");
return new StockQuoteServiceImpl();
}
}
// IStockQuoteService.aidl
package id.ac.ui.cs.mobileprogramming.ahmad_fauzan_amirul_isnain.stockquoteservice;
// Declare any non-default types here with import statements
interface IStockQuoteService {
double getQuote(String ticker);
}
I'm using the code from books Pro Android 2
那本书是 2010 年的。那本书的大部分内容都已经过时了。请使用更新的东西。如果不出意外,您可以免费下载 older editions of one of my books。现在,这些最新版本是 2015 年的——虽然它也有点旧,但比 2010 年的书 多 更新。
I've already tried many solutions in other questions similar to this, but there isn't any working solution for me.
你有:
intent.setClassName("com.id.ac.ui.cs.mobileprogramming" +
".ahmad_fauzan_amirul_isnain.stockquoteservice",
"com.id.ac.ui.cs.mobileprogramming.ahmad_fauzan_amirul_isnain" +
".stockquoteservice.IStockQuoteService");
您清单中的 package
有 id.ac.ui.cs.mobileprogramming.ahmad_fauzan_amirul_isnain.stockquoteservice
。假设模块 build.gradle
文件中的 applicationId
相同,我认为这与代码中的内容相匹配。你的应用ID很长,以后建议你用更短更容易直观比较的ID。
但是,您的 class 名字是错误的。你的 <service>
class 是 StockQuoteService
,而不是 IStockQuoteService
。 IStockQuoteService
是 AIDL 的名称,而不是服务的名称,您的 Intent
需要指向服务。所以,试试:
intent.setClassName("com.id.ac.ui.cs.mobileprogramming" +
".ahmad_fauzan_amirul_isnain.stockquoteservice",
"com.id.ac.ui.cs.mobileprogramming.ahmad_fauzan_amirul_isnain" +
".stockquoteservice.StockQuoteService");
或者,为了减少重复:
String packageName = "com.id.ac.ui.cs.mobileprogramming" +
".ahmad_fauzan_amirul_isnain.stockquoteservice";
intent.setClassName(packageName, packageName+".StockQuoteService");
我想提供一个可以被其他应用程序调用的服务。因此,我有一个服务和一个援助。但是当我尝试有一个单独的应用程序来绑定此服务 (bindService) 时,它只是 returns me false 这意味着失败。这是我的代码。
我正在使用 Pro 书中的代码 Android 2
我已经在其他类似的问题上尝试过很多解决方案,但没有适合我的解决方案。
我已尝试修复 aidl intent 过滤器,但它仍然无法正常工作
我已经尝试在客户端应用程序中修复程序包名称和 class 名称,但仍然无法正常工作。
请帮帮我!
在客户端:
// IStockQuoteService.aidl
package id.ac.ui.cs.mobileprogramming.ahmad_fauzan_amirul_isnain.stockquoteservice;
// Declare any non-default types here with import statements
interface IStockQuoteService {
double getQuote(String ticker);
}
package id.ac.ui.cs.mobileprogramming.ahmad_fauzan_amirul_isnain.stockquoteclient;
import id.ac.ui.cs.mobileprogramming.ahmad_fauzan_amirul_isnain.stockquoteservice.IStockQuoteService;
import android.app.Activity;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.ServiceConnection;
import android.os.Bundle;
import android.os.IBinder;
import android.os.RemoteException;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Toast;
public class MainActivity extends Activity {
protected static final String TAG = "StockQuoteClient";
private IStockQuoteService stockService = null;
private Button bindBtn;
private Button callBtn;
private Button unbindBtn;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
bindBtn = (Button)findViewById(R.id.bindBtn);
bindBtn.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View view) {
Intent intent = new Intent();
intent.setClassName("com.id.ac.ui.cs.mobileprogramming" +
".ahmad_fauzan_amirul_isnain.stockquoteservice",
"com.id.ac.ui.cs.mobileprogramming.ahmad_fauzan_amirul_isnain" +
".stockquoteservice.IStockQuoteService");
Log.d("Hasil", String.valueOf(bindService(intent,
serConn, Context.BIND_AUTO_CREATE)));
bindBtn.setEnabled(false);
callBtn.setEnabled(true);
unbindBtn.setEnabled(true);
}});
callBtn = (Button)findViewById(R.id.callBtn);
callBtn.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View view) {
callService();
}});
callBtn.setEnabled(false);
unbindBtn = (Button)findViewById(R.id.unbindBtn);
unbindBtn.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View view) {
unbindService(serConn);
bindBtn.setEnabled(true);
callBtn.setEnabled(false);
unbindBtn.setEnabled(false);
}});
unbindBtn.setEnabled(false);
}
private void callService() {
try {
double val = stockService.getQuote("SYH");
Toast.makeText(MainActivity.this, "Value from service is "+val,
Toast.LENGTH_SHORT).show();
} catch (RemoteException ee) {
Log.e("MainActivity", ee.getMessage(), ee);
}
}
private ServiceConnection serConn = new ServiceConnection() {
@Override
public void onServiceConnected(ComponentName name, IBinder service)
{
Log.v(TAG, "onServiceConnected() called");
stockService = IStockQuoteService.Stub.asInterface(service);
callService();
}
@Override
public void onServiceDisconnected(ComponentName name) {
Log.v(TAG, "onServiceDisconnected() called");
stockService = null;
}
};
}
服务中:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="id.ac.ui.cs.mobileprogramming.ahmad_fauzan_amirul_isnain.stockquoteservice">
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<service android:name="StockQuoteService">
<intent-filter>
<action android:name="com.id.ac.ui.cs.mobileprogramming.ahmad_fauzan_amirul_isnain.stockquoteservice.IStockQuoteService"
/>
</intent-filter>
</service>
</application>
</manifest>
package id.ac.ui.cs.mobileprogramming.ahmad_fauzan_amirul_isnain.stockquoteservice;
import android.app.Service;
import android.content.Intent;
import android.os.IBinder;
import android.os.RemoteException;
import android.util.Log;
public class StockQuoteService extends Service
{
private static final String TAG = "StockQuoteService";
public class StockQuoteServiceImpl extends IStockQuoteService.Stub
{
@Override
public double getQuote(String ticker) throws RemoteException
{
Log.v(TAG, "getQuote() called for " + ticker);
return 20.0;
}
}
@Override
public void onCreate() {
super.onCreate();
Log.v(TAG, "onCreate() called");
}
@Override
public void onDestroy()
{
super.onDestroy();
Log.v(TAG, "onDestroy() called");
}
@Override
public void onStart(Intent intent, int startId) {
super.onStart(intent, startId);
Log.v(TAG, "onStart() called");
}
@Override
public IBinder onBind(Intent intent)
{
Log.v(TAG, "onBind() called");
return new StockQuoteServiceImpl();
}
}
// IStockQuoteService.aidl
package id.ac.ui.cs.mobileprogramming.ahmad_fauzan_amirul_isnain.stockquoteservice;
// Declare any non-default types here with import statements
interface IStockQuoteService {
double getQuote(String ticker);
}
I'm using the code from books Pro Android 2
那本书是 2010 年的。那本书的大部分内容都已经过时了。请使用更新的东西。如果不出意外,您可以免费下载 older editions of one of my books。现在,这些最新版本是 2015 年的——虽然它也有点旧,但比 2010 年的书 多 更新。
I've already tried many solutions in other questions similar to this, but there isn't any working solution for me.
你有:
intent.setClassName("com.id.ac.ui.cs.mobileprogramming" +
".ahmad_fauzan_amirul_isnain.stockquoteservice",
"com.id.ac.ui.cs.mobileprogramming.ahmad_fauzan_amirul_isnain" +
".stockquoteservice.IStockQuoteService");
您清单中的 package
有 id.ac.ui.cs.mobileprogramming.ahmad_fauzan_amirul_isnain.stockquoteservice
。假设模块 build.gradle
文件中的 applicationId
相同,我认为这与代码中的内容相匹配。你的应用ID很长,以后建议你用更短更容易直观比较的ID。
但是,您的 class 名字是错误的。你的 <service>
class 是 StockQuoteService
,而不是 IStockQuoteService
。 IStockQuoteService
是 AIDL 的名称,而不是服务的名称,您的 Intent
需要指向服务。所以,试试:
intent.setClassName("com.id.ac.ui.cs.mobileprogramming" +
".ahmad_fauzan_amirul_isnain.stockquoteservice",
"com.id.ac.ui.cs.mobileprogramming.ahmad_fauzan_amirul_isnain" +
".stockquoteservice.StockQuoteService");
或者,为了减少重复:
String packageName = "com.id.ac.ui.cs.mobileprogramming" +
".ahmad_fauzan_amirul_isnain.stockquoteservice";
intent.setClassName(packageName, packageName+".StockQuoteService");