Android：为什么我的服务不能启动？

-5

我想学习如何在我的应用程序中使用服务，但服务不起作用！这是我的代码。这是我为服务编写的示例代码。建议我，如果我提前缺少anything.ThanksAndroid：为什么我的服务不能启动？

package com.example.utente.test; 

import android.content.Intent 
import android.support.v7.app.AppCompatActivity; 
import android.os.Bundle; 
import android.view.View; 
import android.widget.AdapterView; 
import android.widget.ArrayAdapter; 
import android.widget.ListView; 
import android.widget.Toast; 
public class MainActivity extends AppCompatActivity implements 
AdapterView.OnItemClickListener { 
final String[] numeri = 
{"1","2","1","2","1","2","1","2","1","2","1","2","1","2","1","2","1","2","1","2" 
,"1","2","1","2", 
"1","2","1","2","1","2","1","2","1","2","1","2","1","2","1","2","1","2","1","2", 
"1","2","1","2"}; 
long inizio; 
long fine; 
@Override 
protected void onCreate(Bundle savedInstanceState) 
{ 
super.onCreate(savedInstanceState); 
setContentView(R.layout.activity_main); 
inizio = System.currentTimeMillis(); 
Intent i= new Intent(getApplicationContext(), MyService.class); 
startService(i); 
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, 
R.layout.riga, numeri); 
ListView listView = (ListView)findViewById(R.id.listView); 
listView.setAdapter(adapter); 
listView.setOnItemClickListener(this); 
} 
@Override 
public void onResume() 
{ 
super.onResume(); 
inizio = System.currentTimeMillis(); 
//  new MyService(inizio); 
} 
@Override 
public void onItemClick(AdapterView<?> adattatore, final View componente, 
int posizione, long id) 
{ 
Toast.makeText(getApplicationContext(), numeri[posizione], 
Toast.LENGTH_LONG).show(); 
} 
} 
package com.example.utente.test; 
import android.app.Service; 
import android.content.Intent; 
import android.os.IBinder; 
import android.widget.Toast; 
public class MyService extends Service 
{ 
long inizio; 
long fine; 
long tempo; 
boolean ciclo=true; 
int prova=0; 
@Override 
public int onStartCommand(Intent intent, int flags, int startId) { 
// This is where you would place your code that you want in the 
background 
// Putting your while loop here will make sure it runs when the app is closed 
Toast.makeText(getApplicationContext() ,"COMMAND", 
Toast.LENGTH_LONG).show(); 
while(ciclo) 
{ 
fine = System.currentTimeMillis(); 
tempo = (fine-inizio)/1000; 
if(tempo>10 && prova==0) 
{ 
prova++; 
Toast.makeText(getApplicationContext(), "10s", 
Toast.LENGTH_LONG).show(); 
} 
} 
return Service.START_STICKY; 
} 
@Override 
public IBinder onBind(Intent intent) { 
//TODO for communication return IBinder implementation 
return null; 
} 
} 
<?xml version="1.0" encoding="utf-8"?>

清单：

<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
package="com.example.utente.test"> 
<service 
android:name="MyService" /> 
<application 
android:allowBackup="true" 
android:icon="@mipmap/ic_launcher" 
android:label="@string/app_name" 
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> 
</application> 
</manifest>

来源

2016-12-23 Puccio

我也不打算读代码格式非常糟糕。 – Rohit5k2

如果你这样设计你的代码的格式，你会在将来尝试阅读时遇到很多麻烦。 –

现在你能帮助我吗？ – Puccio

添加您Service您Manifest如下：

<service android:name=".MyService" />

来源

2016-12-23 12:37:50 DroidBender

我这样做了，但应用程序停止，它不起作用 – Puccio

Android：为什么我的服务不能启动？

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