我试图将图像和图像名称上传到android studio中的firebase数据库，但是每当我运行它时，我的应用就会崩溃。
public class image_upload extends AppCompatActivity {
// Folder path for Firebase Storage.
String Storage_Path = "All_Image_Uploads/";
// Root Database Name for Firebase Database.
String Database_Path = "All_Image_Uploads_Database";
// Creating button.
Button ChooseButton, UploadButton;
// Creating EditText.
EditText ImageName ;
// Creating ImageView.
ImageView SelectImage;
// Creating URI.
Uri FilePathUri;
// Creating StorageReference and DatabaseReference object.
StorageReference storageReference;
DatabaseReference databaseReference;
// Image request code for onActivityResult() .
int Image_Request_Code = 7;
ProgressDialog progressDialog ;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_image_upload);
// Assign FirebaseStorage instance to storageReference.
storageReference = FirebaseStorage.getInstance().getReference();
// Assign FirebaseDatabase instance with root database name.
databaseReference = FirebaseDatabase.getInstance().getReference(Database_Path);
//Assign ID'S to button.
ChooseButton = (Button)findViewById(R.id.ButtonChooseImage);
UploadButton = (Button)findViewById(R.id.ButtonUploadImage);
// Assign ID's to EditText.
ImageName = (EditText)findViewById(R.id.ImageNameEditText);
// Assign ID'S to image view.
SelectImage = (ImageView)findViewById(R.id.ShowImageView);
// Assigning Id to ProgressDialog.
progressDialog = new ProgressDialog(image_upload.this);
// Adding click listener to Choose image button.
ChooseButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
// Creating intent.
Intent intent = new Intent();
// Setting intent type as image to select image from phone storage.
intent.setType("image/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(Intent.createChooser(intent, "Please Select Image"), Image_Request_Code);
}
});
// Adding click listener to Upload image button.
UploadButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
// Calling method to upload selected image on Firebase storage.
UploadImageFileToFirebaseStorage();
}
});
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == Image_Request_Code && resultCode == RESULT_OK && data != null && data.getData() != null) {
FilePathUri = data.getData();
try {
// Getting selected image into Bitmap.
Bitmap bitmap = MediaStore.Images.Media.getBitmap(getContentResolver(), FilePathUri);
// Setting up bitmap selected image into ImageView.
SelectImage.setImageBitmap(bitmap);
// After selecting image change choose button above text.
ChooseButton.setText("Image Selected");
}
catch (IOException e) {
e.printStackTrace();
}
}
}
// Creating Method to get the selected image file Extension from File Path URI.
public String GetFileExtension(Uri uri) {
ContentResolver contentResolver = getContentResolver();
MimeTypeMap mimeTypeMap = MimeTypeMap.getSingleton();
// Returning the file Extension.
return mimeTypeMap.getExtensionFromMimeType(contentResolver.getType(uri)) ;
}
// Creating UploadImageFileToFirebaseStorage method to upload image on storage.
public void UploadImageFileToFirebaseStorage() {
// Checking whether FilePathUri Is empty or not.
if (FilePathUri != null) {
// Setting progressDialog Title.
progressDialog.setTitle("Image is Uploading...");
// Showing progressDialog.
progressDialog.show();
// Creating second StorageReference.
StorageReference storageReference2nd = storageReference.child(Storage_Path + System.currentTimeMillis() + "." + GetFileExtension(FilePathUri));
// Adding addOnSuccessListener to second StorageReference.
storageReference2nd.putFile(FilePathUri)
.addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() {
@Override
public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {
// Getting image name from EditText and store into string variable.
String TempImageName = ImageName.getText().toString().trim();
// Hiding the progressDialog after done uploading.
progressDialog.dismiss();
// Showing toast message after done uploading.
Toast.makeText(getApplicationContext(), "Image Uploaded Successfully ", Toast.LENGTH_LONG).show();
@SuppressWarnings("VisibleForTests")
ImageUploadInfo imageUploadInfo = new ImageUploadInfo(TempImageName, taskSnapshot.getDownloadUrl().toString());
// Getting image upload ID.
String ImageUploadId = databaseReference.push().getKey();
// Adding image upload id s child element into databaseReference.
databaseReference.child(ImageUploadId).setValue(imageUploadInfo);
}
})
// If something goes wrong .
.addOnFailureListener(new OnFailureListener() {
@Override
public void onFailure(@NonNull Exception exception) {
// Hiding the progressDialog.
progressDialog.dismiss();
// Showing exception erro message.
Toast.makeText(image_upload.this, exception.getMessage(), Toast.LENGTH_LONG).show();
}
})
// On progress change upload time.
.addOnProgressListener(new OnProgressListener<UploadTask.TaskSnapshot>() {
@Override
public void onProgress(UploadTask.TaskSnapshot taskSnapshot) {
// Setting progressDialog Title.
progressDialog.setTitle("Image is Uploading...");
}
});
}
else {
Toast.makeText(image_upload.this, "Please Select Image or Add Image Name", Toast.LENGTH_LONG).show();
}
}
}
This is the java class
public class ImageUploadInfo {
public String imageName;
public String imageURL;
public ImageUploadInfo() {
}
public ImageUploadInfo(String name, String url) {
this.imageName = name;
this.imageURL= url;
}
public String getImageName() {
return imageName;
}
public String getImageURL() {
return imageURL;
}
}
我试图将图像和图像名称上载到android studio中的firebase数据库，但是每当我运行它时，我的应用就会崩溃。 我正在尝试将图像和图像名称上传到android studio中的firebase数据库，但是每当我运行它时，我的应用就会崩溃。
记录错误
11-21 13:47:02.265 32446-32446/com.example.youngfeezy.feezy_gram E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.youngfeezy.feezy_gram, PID: 32446
java.lang.NoClassDefFoundError: Failed resolution of: Lcom/google/android/gms/common/internal/zzbq;
at com.google.firebase.storage.FirebaseStorage.getInstance(Unknown Source)
at com.example.youngfeezy.feezy_gram.image_upload.onCreate(image_upload.java:64)
at android.app.Activity.performCreate(Activity.java:6729)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1118)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2677)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2789)
at android.app.ActivityThread.-wrap12(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1527)
at android.os.Handler.dispatchMessage(Handler.java:110)
at android.os.Looper.loop(Looper.java:203)
at android.app.ActivityThread.main(ActivityThread.java:6284)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1094)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:955)
Caused by: java.lang.ClassNotFoundException: Didn't find class "com.google.android.gms.common.internal.zzbq" on path: DexPathList[[zip file "/data/app/com.example.youngfeezy.feezy_gram-2/base.apk"],nativeLibraryDirectories=[/data/app/com.example.youngfeezy.feezy_gram-2/lib/arm64, /system/lib64, /vendor/lib64, /system/vendor/lib64]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
at java.lang.ClassLoader.loadClass(ClassLoader.java:380)
at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
at com.google.firebase.storage.FirebaseStorage.getInstance(Unknown Source)
at com.example.youngfeezy.feezy_gram.image_upload.onCreate(image_upload.java:64)
应用程序build.gradle文件
apply plugin: 'com.android.application'
android {
compileSdkVersion 28
defaultConfig {
applicationId "com.example.youngfeezy.feezy_gram"
minSdkVersion 15
targetSdkVersion 28
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'com.android.support:appcompat-v7:28.+'
implementation 'com.android.support.constraint:constraint-layout:1.0.2'
implementation 'com.google.firebase:firebase-storage:11.8.0'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support.test:runner:1.0.1'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
implementation 'com.android.support:cardview-v7:28.+'
implementation 'com.google.firebase:firebase-analytics:16.0.4'
implementation 'com.google.firebase:firebase-auth:9.0.2'
implementation 'com.google.firebase:firebase-database:16.0.4'
}
apply plugin: 'com.google.gms.google-services'
答案 0 :(得分：0)
private void upLoadImage() {
if (filePath != null) {
final ProgressDialog progressDialog = new ProgressDialog(this);
progressDialog.setTitle("Uploading Image..");
progressDialog.setIcon(android.R.drawable.ic_dialog_info);
progressDialog.show();
StorageReference ref = storageRef.child("image/" + UUID.randomUUID().toString());
ref.putFile(filePath).addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() {
@Override
public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {
// Image uploaded successfully
// Dismiss dialog
progressDialog.dismiss();
Toast.makeText(SendSnapActivity.this, "Image Uploaded!!", Toast.LENGTH_SHORT).show();
}
})
// Download failure report
.addOnFailureListener(new OnFailureListener() {
@Override
public void onFailure(@NonNull Exception e) {
progressDialog.dismiss();
Toast.makeText(SendSnapActivity.this, "Failed!" + e.getMessage(), Toast.LENGTH_SHORT).show();
}
})
// Image upload in progress
.addOnProgressListener(new OnProgressListener<UploadTask.TaskSnapshot>() {
@Override
public void onProgress(UploadTask.TaskSnapshot taskSnapshot) {
double progress = (100.0 * taskSnapshot.getBytesTransferred() / taskSnapshot.getTotalByteCount());
progressDialog.setMessage("Uploaded " + (int)progress + "%");
}
});
} else {
Toast.makeText(this, "Please select and image!", Toast.LENGTH_SHORT).show();
}
}