Question

如何在这种情况下使用进度条？我想要一个进度条显示一旦点击注册按钮，如果注册成功，我也想给用户一个成功的按摩：

protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_sme);

    Firebase.setAndroidContext(this);

    bizname = (EditText) findViewById(R.id.bizname);
    location = (EditText) findViewById(R.id.location);
    biztype = (EditText) findViewById(R.id.biztype);
    pin = (EditText) findViewById(R.id.pin);
    register = (Button) findViewById(R.id.register);
    progressBar = (ProgressBar) findViewById(R.id.progressBar);

    register.setOnClickListener(new View.OnClickListener() {
        @RequiresApi(api = Build.VERSION_CODES.N)
        @Override
        public void onClick(View v) {
            //Creating firebase object
            **progressBar.setVisibility(View.VISIBLE);**
            final Firebase ref = new Firebase("https://mcn-africa.firebaseio.com/");

            //Getting values to store
            String Username = bizname.getText().toString();
            String Name = biztype.getText().toString();
            String Id = pin.getText().toString();
            String Location = location.getText().toString();

            Members members = new Members();
            members.setUsername(Username);
            members.setLocation(Location);
            members.setName(Name);
            members.setId(Id);



            Firebase newRef = ref.child("SMEs").push();


            newRef.setValue(members);
            progressBar.setVisibility(View.GONE);

        }
    });
}

} 任何想法将不胜感激

Answer 1

您可以简单地使用绿色和红色条来显示登录是否成功。

Answer 2

您无法在注册过程中显示进度。您唯一能做的就是在注册过程中提供进度加载器，或者在调用注册时必须创建手动静态进度更新。

Answer 3

使用function 0 = [] function a = function4 (a-1) ++ [a]连接到firebase以验证凭据在AsynTask方法中显示ProgressBar 在onPreExecute()方法中设置ProgressBar到GONE的可见性。然后，您可以使用OnPostExecute()让用户知道注册成功。

Answer 4

试试这个：

 //defining firebaseauth object
private FirebaseAuth firebaseAuth;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    //initializing firebase auth object
    firebaseAuth = FirebaseAuth.getInstance();

    //initializing views
    editTextEmail = (EditText) findViewById(R.id.editTextEmail);
    editTextPassword = (EditText) findViewById(R.id.editTextPassword);

    buttonSignup = (Button) findViewById(R.id.buttonSignup);

    progressDialog = new ProgressDialog(this);  //progress dialog

    //attaching listener to button
    buttonSignup.setOnClickListener(this);
}

private void registerUser(){

    //getting email and password from edit texts
    String email = editTextEmail.getText().toString().trim();
    String password  = editTextPassword.getText().toString().trim();

    //checking if email and passwords are empty
    if(TextUtils.isEmpty(email)){
        Toast.makeText(this,"Please enter email",Toast.LENGTH_LONG).show();
        return;
    }

    if(TextUtils.isEmpty(password)){
        Toast.makeText(this,"Please enter password",Toast.LENGTH_LONG).show();
        return;
    }

    //if the email and password are not empty
    //displaying a progress dialog

    progressDialog.setMessage("Registering Please Wait...");
    progressDialog.show();

    //creating a new user
    firebaseAuth.createUserWithEmailAndPassword(email, password)
            .addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
                @Override
                public void onComplete(@NonNull Task<AuthResult> task) {
                    //checking if success
                    if(task.isSuccessful()){
                        //display some message here
                        Toast.makeText(MainActivity.this,"Successfully registered",Toast.LENGTH_LONG).show();
                    }else{
                        //display some message here
                        Toast.makeText(MainActivity.this,"Registration Error",Toast.LENGTH_LONG).show();
                    }
                    progressDialog.dismiss();
                }
            });

}

请参阅source code

详细实施

使用进度条

4 个答案: