如何在android中将多个图像上传到firebase？ [英] How to upload multiple images to firebase in android?
本文介绍了如何在android中将多个图像上传到firebase？的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我知道这个问题已经在这里被问到并回答但是由于某些原因，如果解决方案对我不起作用。
I know this question has been asked here and answered but for some reasons, provided solutions are not working for me.
所以这就是我想要的方式做这个。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。
So here is how I'm trying to do this. I have two buttons in my layout one to open gallery and other to upload the images.
已定义成员
int SELECT_PICTURES = 1;
ArrayList<Uri> mArrayUri = new ArrayList<Uri>();
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);
关于活动结果代码
@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<UploadTask.TaskSnapshot>() {
@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张图片然后崩溃了以下错误
The above code uploads one image and then crashes with the following error
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)
推荐答案
找到导致问题的原因。我在 onSuccessListener 中递增变量up和k。这可能是在上传URI之前改变它们的值，所以我将它们增加到 onSuccessListener 之外，它完全正常。
Found what was causing the problem. I was incrementing the variables "up" and "k" within the onSuccessListener. That might be changing their values before uploading the URI, so I incremented them outside the onSuccessListener and it worked perfectly fine.
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<UploadTask.TaskSnapshot>() {
@Override
public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {
Uri downloadURL = taskSnapshot.getDownloadUrl();
Toast.makeText(TestingActivity.this, downloadURL.toString(), Toast.LENGTH_SHORT).show();
}
});
up++;
k++;
}
}
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