听闻少年二字,当与平庸相斥。这篇文章主要讲述Android Firebase下载声音相关的知识,希望能为你提供帮助。
我在android应用程序上工作,我需要从firebase存储下载一些声音,我从firebase实时数据库中获取声音名称。
我的代码:
public class DataSyncFb extends AsyncTask<
Void, Integer, Void>
{private Context context;
private StorageReference mStorageRef;
public DataSyncFb(final Context context) {
this.context = context;
}@Override
protected void onPreExecute() {
super.onPreExecute();
Log.i("DataSincFB", "onPreExecute");
}@Override
protected Void doInBackground(Void... voids) {
final DatabaseHandler db = new DatabaseHandler(context);
final FirebaseDatabase database = FirebaseDatabase.getInstance();
DatabaseReference dbRef = database.getReference("categorie");
dbRef.addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(DataSnapshot dataSnapshot) {
try {
List<
String>
listCat = db.getAllCategoriesId();
List<
String>
listSounds = db.getAllSoundsId();
Log.i("test", String.valueOf(dataSnapshot.getValue()));
Gson test = new Gson();
JSONArray jsonArray = new JSONArray(test.toJson(dataSnapshot.getValue()));
for (int i = 0;
i <
jsonArray.length();
i++){
JSONObject cat = jsonArray.getJSONObject(i);
String nom = cat.getString("nom");
String id = cat.getString("id");
if (!listCat.contains(id)) {
db.addCategorie(nom, id);
}JSONArray sounds = cat.getJSONArray("son");
Log.i("cat", sounds.toString());
for (int j = 0;
j <
sounds.length();
j++){
JSONObject sound = sounds.getJSONObject(j);
String soundId = sound.getString("id");
if (!listSounds.contains(soundId)){downloadSound();
db.addSound(soundId, sound.getString("nom"), sound.getString("lien") ,id);
}}
}
} catch (JSONException e) {
e.printStackTrace();
}}@Override
public void onCancelled(DatabaseError databaseError) {}
});
return null;
}@Override
protected void onPostExecute(Void aVoid) {
Log.i("DataSyncFB", "onPostExecute");
}private void downloadSound(){
Log.v("download", "in function");
try {
StorageReference islandRef = FirebaseStorage.getInstance().getReferenceFromUrl("gs://soundbox-a6dd8.appspot.com").child("cjpcommodelouisxv.mp3");
File localFile = null;
localFile = File.createTempFile("cjpcommodelouisxv", "mp3");
islandRef.getFile(localFile).addOnSuccessListener(new OnSuccessListener<
FileDownloadTask.TaskSnapshot>
() {
@Override
public void onSuccess(FileDownloadTask.TaskSnapshot taskSnapshot) {
Log.v("download", "Success");
// Local temp file has been created
}
}).addOnFailureListener(new OnFailureListener() {
@Override
public void onFailure(@NonNull Exception exception) {
// Handle any errors
Log.e("download", "Error");
}
});
} catch (IOException e) {
e.printStackTrace();
}
}
我收到此错误:
E/StorageException: StorageException has occurred.User does not have permission to access this object.Code: -13021 HttpResult: 403
E/firebase: ;
local tem file not createdcreated com.google.firebase.storage.StorageException: User does not have permission to access this object.
E/StorageUtil: error getting token java.util.concurrent.ExecutionException: com.google.firebase.internal.api.FirebaseNoSignedInUserException: Please sign in before trying to get a token.
W/NetworkRequest: no auth token for request
我尝试更改Firebase> 存储中的规则,但没有任何效果。如果您有任何想法来解决我的问题。谢谢您帮忙。
编辑:
service firebase.storage {
match /b/soundbox-a6dd8.appspot.com/o {
match /{allPaths=**} {
// Allow access by all users
allow read, write: if true;
}
}
}
新错误:E / firebase :; 已创建本地tem文件/storage/emulated/0/cjpcommodelouisxv/cjpcommodelouisxv.mp3 E / StorageUtil:获取令牌java.util.concurrent.ExecutionException:com.google.firebase.internal.api时出错。 FirebaseNoSignedInUserException:请在尝试获取令牌之前登录。 W / NetworkRequest:请求没有身份验证令牌
答案【Android Firebase下载声音】您的存储安全规则可能有一个
allow write: if request.auth !=null
子句,在这里您似乎没有使用FirebaseAuth来验证用户。
对于测试,建议您使用signInAnonymously()方法并在写入存储之前透明地签署用户。
FirebaseAuth mAuth = FirebaseAuth.getInstance();
然后在进行任何你正在做的事情之前登录
FirebaseUser user = mAuth.getCurrentUser();
if (user != null) {
// do your stuff
} else {
signInAnonymously();
}
signInAnonymously()方法如下
private void signInAnonymously(){
mAuth.signInAnonymously().addOnSuccessListener(this, new OnSuccessListener<
AuthResult>
() {
@Override public void onSuccess(AuthResult authResult) {
// do your stuff
}
}) .addOnFailureListener(this, new OnFailureListener() {
@Override public void onFailure(@NonNull Exception exception) {
Log.e("TAG", "signInAnonymously:FAILURE", exception);
}
});
}
同样在Firebase控制台中,在身份验证> 登录方法下,启用匿名登录
这可以解决您的问题
或者,如果您不希望对测试进行身份验证,请遵循以下规则:
allow write: if true;
这只是测试,因为这是基本的公共访问
然后,您可以根据您的规则调整身份验证方法。
如果您的规则不是我指定的规则,请分享您的规则,以便我们可以相应地指导您,而不是猜测和猜测
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