我正在尝试从Firebase检索数据，但是当我打开应用程序时，应用程序崩溃。
我尝试添加MultiDex库并将库的版本更改为相同，但是错误似乎出在数据库存储上。我试图更改Firebase存储，并尝试了其他方法来检索数据，但它根本无法工作。到目前为止，这是我所做的。
public class SettingsActivity extends AppCompatActivity {
private final static int GALLERY_PICK = 1;
private TextView displayName , displayStatus;
private Button changeImgBtn , changeStatusBtn;
private CircleImageView imageView;
private DatabaseReference getUserDataReference;
private FirebaseAuth auth;
private StorageReference storageReference;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_settings_acitivty);
auth = FirebaseAuth.getInstance();
String online_user_id = auth.getCurrentUser().getUid();
getUserDataReference = FirebaseDatabase.getInstance().getReference().child("Users").child(online_user_id);
storageReference = FirebaseStorage.getInstance().getReference().child("Profile_images");
displayName = (TextView)findViewById(R.id.settings_name);
displayStatus = (TextView)findViewById(R.id.settings_status);
changeImgBtn = (Button)findViewById(R.id.settings_change_image_btn);
changeStatusBtn = (Button)findViewById(R.id.settings_change_status_btn);
imageView = (CircleImageView)findViewById(R.id.settings_image);
getUserDataReference.addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
String name = dataSnapshot.child("user_name").getValue().toString();
String status = dataSnapshot.child("user_status").getValue().toString();
String image = dataSnapshot.child("user_image").getValue().toString();
String thumb_image = dataSnapshot.child("user_thumb_image").getValue().toString();
displayName.setText(name);
displayStatus.setText(status);
}
@Override
public void onCancelled(@NonNull DatabaseError databaseError) {
}
});
changeImgBtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent galleryIntent = new Intent();
galleryIntent.setAction(Intent.ACTION_GET_CONTENT);
galleryIntent.setType("image/*");
startActivityForResult(galleryIntent,GALLERY_PICK);
}
});
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if(requestCode == GALLERY_PICK && resultCode == RESULT_OK && data != null){
Uri imageUri = data.getData();
CropImage.activity()
.setGuidelines(CropImageView.Guidelines.ON)
.setAspectRatio(1 , 1)
.start(this);
}
if (requestCode == CropImage.CROP_IMAGE_ACTIVITY_REQUEST_CODE) {
CropImage.ActivityResult result = CropImage.getActivityResult(data);
if (resultCode == RESULT_OK) {
Uri resultUri = result.getUri();
String current_user_id = auth.getCurrentUser().getUid();
StorageReference filePath = storageReference.child(current_user_id + ".jpg");
filePath.putFile(resultUri).addOnCompleteListener(new OnCompleteListener<UploadTask.TaskSnapshot>() {
@Override
public void onComplete(@NonNull Task<UploadTask.TaskSnapshot> task) {
if(task.isSuccessful()){
Toast.makeText(SettingsActivity.this, "Saving your Image", Toast.LENGTH_SHORT).show();
}else{
Toast.makeText(SettingsActivity.this, task.getException().toString(), Toast.LENGTH_SHORT).show();
}
}
});
} else if (resultCode == CropImage.CROP_IMAGE_ACTIVITY_RESULT_ERROR_CODE) {
Exception error = result.getError();
}
}
}
}
这是logcat中的错误。
Process: com.example.bestever.mychatapp, PID: 12592
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.bestever.mychatapp.SettingsActivity.onCreate(SettingsActivity.java:51)
at android.app.Activity.performCreate(Activity.java:6288)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1119)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2642)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2754)
at android.app.ActivityThread.access$900(ActivityThread.java:177)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1448)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:145)
at android.app.ActivityThread.main(ActivityThread.java:5938)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1400)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1195)
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.bestever.mychatapp-2/base.apk"],nativeLibraryDirectories=[/vendor/lib, /system/lib]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
at com.google.firebase.storage.FirebaseStorage.getInstance(Unknown Source)
at com.example.bestever.mychatapp.SettingsActivity.onCreate(SettingsActivity.java:51)
at android.app.Activity.performCreate(Activity.java:6288)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1119)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2642)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2754)
at android.app.ActivityThread.access$900(ActivityThread.java:177)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1448)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:145)
at android.app.ActivityThread.main(ActivityThread.java:5938)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1400)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1195)
Suppressed: java.lang.ClassNotFoundException: com.google.android.gms.common.internal.zzbq
at java.lang.Class.classForName(Native Method)
at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
... 16 more
Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack available