How to create Create AlertDialog With Custom Layout Programmatically (Java)?
In this tutorial we will create AlertDialog with custom layout programmatically in Java using Android Studio IDE. We will create a button to show that AlertDialog and show output in Toast. You can also display this information anywhere such as TextView etc or save at some place.
Step 1: Create a new project OR Open your project
Step 2: Code
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<Button
android:id="@+id/showAlertDialogBtn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Show Alert Dialog"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</android.support.constraint.ConstraintLayout>
MainActivity.java
package com.jigopost.myapplication;
import android.content.DialogInterface;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.TypedValue;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.Toast;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button mShowAlertDialogBtn = findViewById(R.id.showAlertDialogBtn);
mShowAlertDialogBtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
showAlertDialog();
}
});
}
private void showAlertDialog() {
AlertDialog.Builder mBuilder = new AlertDialog.Builder(this);
LinearLayout mLayout = new LinearLayout(this);
TextView mTvMessage = new TextView(this);
final EditText mEtInput = new EditText(this);
mTvMessage.setText("Enter name:");
mTvMessage.setTextSize(TypedValue.COMPLEX_UNIT_SP, 16f);
mEtInput.setSingleLine();
mLayout.setOrientation(LinearLayout.VERTICAL);
mLayout.addView(mTvMessage);
mLayout.addView(mEtInput);
mLayout.setPadding(50, 40, 50, 10);
mBuilder.setView(mLayout);
mBuilder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
Toast.makeText(MainActivity.this, "Canceled", Toast.LENGTH_SHORT).show();
}
});
mBuilder.setPositiveButton("Done", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
String name = mEtInput.getText().toString();
Toast.makeText(MainActivity.this, "Name entered: " + name, Toast.LENGTH_SHORT).show();
}
});
mBuilder.create().show();
}
}
Step 3: Run Project
Output
