Question

背景：

我正在为我的Android应用开发使用Firebase此应用要求每个用户每天从手机上传一个对象到存储桶/ Firebase存储。因此，我想将“对象上传”过程作为JobSchedulerAPI的后台服务。我复制了Firebase的源代码和与Job Scheduler相关的YouTube视频。但是当我点击按钮时，应用程序立即停止。

MainActivity.Java

package com.scheduleupload;

import android.app.job.JobInfo;
import android.app.job.JobScheduler;
import android.content.ComponentName;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;

public class MainActivity extends AppCompatActivity {
    private static final String TAG = "MainActivity";
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        Button button = (Button) findViewById(R.id.button);

        final ComponentName mComponentName = new ComponentName(this, Scheduler.class);

        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                JobInfo info = new JobInfo.Builder(123, mComponentName)
                        .setPeriodic(15 * 60 * 1000)
                        .build();

                JobScheduler scheduler = (JobScheduler) getSystemService(JOB_SCHEDULER_SERVICE);
                int resultCode = scheduler.schedule(info);
                if (resultCode == JobScheduler.RESULT_SUCCESS) {
                    Log.d(TAG, "Job scheduled");
                } else {
                    Log.d(TAG, "Job scheduling failed");
                }
            }
        });
    }
}

Scheduler.Java

package com.scheduleupload;

import android.app.job.JobParameters;
import android.app.job.JobService;
import android.net.Uri;
import android.util.Log;

import com.google.android.gms.tasks.OnSuccessListener;
import com.google.firebase.storage.StorageReference;
import com.google.firebase.storage.UploadTask;

public class Scheduler extends JobService {
    private static final String TAG = "ExampleJobService";
    private boolean jobCancelled =false;

    private StorageReference mStorage;
    mStorage = FirebaseStorage.getInstance().getReference();
    String myUri = "content://com.google.android.apps.docs.storage/document/acc%3D1%3Bdoc%3D693";
    final Uri uri = Uri.parse(myUri);
    StorageReference filepath = mStorage.child("Photos").child(uri.getLastPathSegment());

    @Override
    public boolean onStartJob(JobParameters params) {
        Log.d(TAG, "Job Started");
        doBackgroundWork(params);
        return true;
    }

    private void doBackgroundWork(JobParameters params) {
        new Thread(new Runnable() {
            @Override
            public void run() {
                filepath.putFile(uri);
            }
        }).start();
    }

    @Override
    public boolean onStopJob(JobParameters params) {
        return true;
    }
}

花了这么长时间阅读我的问题很多很多

崩溃日志：

05-07 21:53:52.775 6261-6261/com.scheduleupload E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.scheduleupload, PID: 6261
    java.lang.IllegalArgumentException: No such service ComponentInfo{com.scheduleupload/com.scheduleupload.Scheduler}
        at android.os.Parcel.readException(Parcel.java:2008)
        at android.os.Parcel.readException(Parcel.java:1950)
        at android.app.job.IJobScheduler$Stub$Proxy.schedule(IJobScheduler.java:180)
        at android.app.JobSchedulerImpl.schedule(JobSchedulerImpl.java:44)
        at com.scheduleupload.MainActivity$1.onClick(MainActivity.java:35)
        at android.view.View.performClick(View.java:6294)
        at android.view.View$PerformClick.run(View.java:24770)
        at android.os.Handler.handleCallback(Handler.java:790)
        at android.os.Handler.dispatchMessage(Handler.java:99)
        at android.os.Looper.loop(Looper.java:164)
        at android.app.ActivityThread.main(ActivityThread.java:6494)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)

Answer 1

找到了解决方案，这是因为Scheduler无法访问某些存储。只需将文件位置更改为Job Scheduler可以访问的某个位置即可解决问题

Android使用SchedulerAPI上传到Firebase Bucket

1 个答案: