如何在android中将多个图像上传到firebase？

我知道这个问题已经在这里被问到并回答了，但由于某些原因，如果解决方案对我不起作用。

所以这就是我试图这样做的方式。 我的布局中有两个按钮，一个用于打开图库，另一个用于上传图像。

定义的成员

int SELECT_PICTURES = 1; ArrayList mArrayUri = new ArrayList(); Uri imageUri; int up = 0; int k =0; 

图库按钮代码

 Intent intent = new Intent(Intent.ACTION_GET_CONTENT); intent.setType("image/*"); intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true); startActivityForResult(Intent.createChooser(intent, "Select Picture"), SELECT_PICTURES); 

在活动结果代码上

 @Override public void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); if(requestCode == SELECT_PICTURES) { if (resultCode == MainActivity.RESULT_OK) { if (data.getClipData() != null) { int count = data.getClipData().getItemCount(); Log.i("count", String.valueOf(count)); int currentItem = 0; while (currentItem < count) { imageUri = data.getClipData().getItemAt(currentItem).getUri(); Log.i("uri", imageUri.toString()); mArrayUri.add(imageUri); currentItem = currentItem + 1; } Log.i("listsize", String.valueOf(mArrayUri.size())); } else if (data.getData() != null) { String imagePath = data.getData().getPath(); } } } } 

上传按钮代码

  StorageReference filepath = FirebaseStorage.getInstance().getReference().child("gpic"); while (up < mArrayUri.size()){ // error is pointing to this line, line 82 filepath.child(mArrayUri.get(k).getLastPathSegment()).putFile(mArrayUri.get(k)).addOnSuccessListener(new OnSuccessListener() { @Override public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) { Uri downloadURL = taskSnapshot.getDownloadUrl(); Toast.makeText(TestingActivity.this, downloadURL.toString(), Toast.LENGTH_SHORT).show(); up++; k++; } }); } } 

上面的代码上传了一个图像，然后崩溃，出现以下错误

 01-24 12:37:37.416 8336-8336/com.codenemesis.uploading E/AndroidRuntime: FATAL EXCEPTION: main Process: com.codenemesis.uploading, PID: 8336 java.lang.IllegalStateException: Could not execute method for android:onClick at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:293) at android.view.View.performClick(View.java:5610) at android.view.View$PerformClick.run(View.java:22265) at android.os.Handler.handleCallback(Handler.java:751) at android.os.Handler.dispatchMessage(Handler.java:95) at android.os.Looper.loop(Looper.java:154) at android.app.ActivityThread.main(ActivityThread.java:6077) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:866) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:756) Caused by: java.lang.reflect.InvocationTargetException at java.lang.reflect.Method.invoke(Native Method) at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:288) at android.view.View.performClick(View.java:5610) at android.view.View$PerformClick.run(View.java:22265) at android.os.Handler.handleCallback(Handler.java:751) at android.os.Handler.dispatchMessage(Handler.java:95) at android.os.Looper.loop(Looper.java:154) at android.app.ActivityThread.main(ActivityThread.java:6077) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:866) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:756) Caused by: java.util.concurrent.RejectedExecutionException: Task com.google.firebase.storage.zzs@c59b7fe rejected from java.util.concurrent.ThreadPoolExecutor@4b6eb5f[Running, pool size = 2, active threads = 2, queued tasks = 128, completed tasks = 0] at java.util.concurrent.ThreadPoolExecutor$AbortPolicy.rejectedExecution(ThreadPoolExecutor.java:2049) at java.util.concurrent.ThreadPoolExecutor.reject(ThreadPoolExecutor.java:814) at java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:1360) at com.google.firebase.storage.zzu.zzt(Unknown Source) at com.google.firebase.storage.UploadTask.schedule(Unknown Source) at com.google.firebase.storage.StorageTask.zzcls(Unknown Source) at com.google.firebase.storage.StorageReference.putFile(Unknown Source) at **com.codenemesis.uploading.TestingActivity.up(TestingActivity.java:82)** at java.lang.reflect.Method.invoke(Native Method) at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:288) at android.view.View.performClick(View.java:5610) at android.view.View$PerformClick.run(View.java:22265) at android.os.Handler.handleCallback(Handler.java:751) at android.os.Handler.dispatchMessage(Handler.java:95) at android.os.Looper.loop(Looper.java:154) at android.app.ActivityThread.main(ActivityThread.java:6077) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:866) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:756) 

Answer 1

找到导致问题的原因。 我在onSuccessListener递增变量“up”和“k”。 这可能是在上传URI之前改变它们的值，所以我在onSuccessListener之外增加它们并且它工作得非常好。

上传按钮代码

 StorageReference filepath = FirebaseStorage.getInstance().getReference().child("gpic"); while (up < mArrayUri.size()){ filepath.child(mArrayUri.get(k).getLastPathSegment()).putFile(mArrayUri.get(k)).addOnSuccessListener(new OnSuccessListener() { @Override public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) { Uri downloadURL = taskSnapshot.getDownloadUrl(); Toast.makeText(TestingActivity.this, downloadURL.toString(), Toast.LENGTH_SHORT).show(); } }); up++; k++; } }