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In this article, the editor introduces in detail "how to achieve the login interface function of Android Studio". The content is detailed, the steps are clear, and the details are handled properly. I hope that this article "how to achieve the login interface function of Android Studio" can help you solve your doubts.

Title

Design a login interface. Request:

A) contains the user name, password, remember password, "forget password" button and "login" button.

B) Click the "forget password" button to bring up a prompt dialog box with self-made contents.

Answer

Activity_main.xml:

MainActivity.java .

Package com.example.myapplication

Import android.content.DialogInterface

Import android.os.Bundle

Import android.view.View

Import android.widget.Button

Import androidx.appcompat.app.AlertDialog

Import androidx.appcompat.app.AppCompatActivity

Public class MainActivity extends AppCompatActivity {

@ Override

Protected void onCreate (Bundle savedInstanceState) {

Super.onCreate (savedInstanceState)

SetContentView (R.layout.activity_main)

Button button= (Button) findViewById (R.id.login_btn_forgetregister)

Button.setOnClickListener (new View.OnClickListener () {

@ Override

Public void onClick (View v) {new AlertDialog.Builder (MainActivity.this) .setTitle ("system prompt") .setMessage ("Please enter verification information to verify!")

.setPositiveButton ("OK", new DialogInterface.OnClickListener () {

@ Override

Public void onClick (DialogInterface dialog,int which) {

Finish ()

}

}) .setNegativeButton ("return", new DialogInterface.OnClickListener () {

@ Override

Public void onClick (DialogInterface dialog,int which) {

}

}) .show ()

}

});

Button button1= (Button) findViewById (R.id.login_btn_login)

Button1.setOnClickListener (new View.OnClickListener () {

@ Override

Public void onClick (View v) {

New AlertDialog.Builder (MainActivity.this) .setTitle ("system prompt") .setMessage ("validation successful!")

.setNegativeButton ("OK", new DialogInterface.OnClickListener () {

@ Override

Public void onClick (DialogInterface dialog,int which) {

}

}) .show ()

}

});

Button button2= (Button) findViewById (R.id.login_btn_register)

Button2.setOnClickListener (new View.OnClickListener () {

@ Override

Public void onClick (View v) {

New AlertDialog.Builder (MainActivity.this) .setTitle ("system prompt") .setMessage ("registered successfully!")

.setNegativeButton ("OK", new DialogInterface.OnClickListener () {

@ Override

Public void onClick (DialogInterface dialog,int which) {

}

}) .show ()

}

});

}

}

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