无法启动服务 Intent { flg=0x4 cmp=com.org.sample/.TipActivity (has extras) } U=0: 未找到

Question

我知道很多人遇到过这个问题，但我尝试了所有堆栈溢出建议。

使包名称变小
正在清单中验证服务等，但我仍然无法解决这个问题。
清理并构建应用程序。

但没有任何效果。单击启动服务按钮，服务启动，警报设置和意图不调用。无法启动服务意图。

这是我的代码。

MainActivity.java

public class MainActivity extends AppCompatActivity {

    Button btnStartService;
    Button btnStopService;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        btnStartService = (Button)findViewById(R.id.btn_startService);
        btnStopService = (Button)findViewById(R.id.btn_stopService);

        btnStartService.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                startService();
            }
        });

        btnStopService.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                stopService();
            }
        });
    }

    // Method to start the service
    public void startService() {
        startService(new Intent(getBaseContext(), Backgroundservice.class));
    }

    // Method to stop the service
    public void stopService() {
        stopService(new Intent(getBaseContext(), Backgroundservice.class));
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }
}

后台服务

public class Backgroundservice extends Service {

    private AlarmManager alarmManager;
    private PendingIntent pendingIntent;

    public Backgroundservice() {
    }

    @Override
    public IBinder onBind(Intent intent) {
        // TODO: Return the communication channel to the service.
        throw new UnsupportedOperationException("Not yet implemented");
    }

    @Override
      public int onStartCommand(Intent intent, int flags, int startId) {
        Toast.makeText(this, "Service Started!", Toast.LENGTH_LONG).show();
        DateFormat dateFormat = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss");
        Date date = new Date();
        System.out.println("*****" + dateFormat.format(date));
        startAlarm();
        return START_STICKY;
    }

    @Override
    public void onDestroy() {
        super.onDestroy();
        stopAlarm();
        Toast.makeText(this,"Service Stopped!",Toast.LENGTH_LONG).show();
    }

    public void startAlarm()
    {
        Calendar calendar = Calendar.getInstance();
        calendar.setTimeInMillis(System.currentTimeMillis());
        calendar.set(calendar.HOUR_OF_DAY,13);
        calendar.set(calendar.MINUTE,20);
        calendar.set(Calendar.SECOND,10);

        alarmManager = (AlarmManager)getSystemService(Context.ALARM_SERVICE);
        Intent intent = new Intent(this,TipActivity.class);
        pendingIntent = PendingIntent.getService(this,0, intent, 0);

        alarmManager.setInexactRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), AlarmManager.INTERVAL_DAY, pendingIntent);
        Toast.makeText(this, "Alarm Set", Toast.LENGTH_SHORT).show();
    }

    public void stopAlarm(){

        if (alarmManager != null)
        {
            alarmManager.cancel(pendingIntent);
            Toast.makeText(this, "Alarm Cancelled", Toast.LENGTH_SHORT).show();
        }
    }

}

提示活动，java

public class TipActivity extends AppCompatActivity {

    Button btnDismiss;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_tip);

        btnDismiss = (Button) findViewById(R.id.dismiss);

        btnDismiss.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                finish();
            }
        });
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_tip, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }
}

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.org.sample" >

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name=".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>

        <service
            android:name=".Backgroundservice"
            android:enabled="true"
            android:exported="true" >
        </service>

        <activity
            android:name=".TipActivity"
            android:label="@string/title_activity_tip"
            >
        </activity>
    </application>

</manifest>

我为此做了很多工作来解决这个问题，但没有成功。

非常感谢您的帮助。

Answer 1

将 PendingIntent.getService 替换为 PendingIntent.getActivity()。

无法启动服务 Intent { flg=0x4 cmp=com.org.sample/.TipActivity (has extras) } U=0: 未找到

Unable to start service Intent { flg=0x4 cmp=com.org.sample/.TipActivity (has extras) } U=0: not found

android

android-intent

service

android-manifest

alarmmanager