A dialog is a small window that prompts the user to make a decision or enter additional information. A dialog does not fill the screen and is normally used for model events that require users to take an action before they can proceed.
For this ,we need :-
For this ,we need :-
1.MainActivity.java
2.avtivity_main.xml
3.custom.xml
MainActivity.java
package com.blogspot.help2computer.alertdialogs; import android.app.Dialog; import android.os.Bundle; import android.support.v7.app.AlertDialog; import android.support.v7.app.AppCompatActivity; import android.view.View; import android.view.Window; import android.widget.Button; public class MainActivity extends AppCompatActivity { Button popup; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); popup = (Button) findViewById(R.id.button_popup); popUpAlert(); } public void popUpAlert() { popup.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { AlertDialog.Builder alertDialog = new AlertDialog.Builder(MainActivity.this); final Dialog dialog = new Dialog(MainActivity.this); dialog.getWindow(); dialog.requestWindowFeature(Window.FEATURE_NO_TITLE); //dialog.setTitle("Log in"); dialog.setContentView(R.layout.custom); dialog.show(); } }); } }activity_main.xml
<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" tools:context="com.blogspot.help2computer.alertdialogs.MainActivity"> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:textAppearance="?android:attr/textAppearanceLarge" android:text="Alert Example" android:id="@+id/textView" android:layout_alignParentTop="true" android:layout_centerHorizontal="true" /> <Button android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Pop up" android:id="@+id/button_popup" android:layout_below="@+id/textView" android:layout_marginTop="67dp" android:layout_alignParentLeft="true" android:layout_alignParentStart="true" android:layout_alignParentRight="true" android:layout_alignParentEnd="true" /> </RelativeLayout>
custom.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="wrap_content" android:layout_height="wrap_content" android:weightSum="1"> <ImageView android:layout_width="384dp" android:layout_height="64dp" android:scaleType="center" android:background="#FFFFBB33" android:contentDescription="@string/app_name" android:layout_weight="4.76" /> <EditText android:id="@+id/username" android:inputType="textEmailAddress" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginTop="16dp" android:layout_marginLeft="4dp" android:layout_marginRight="4dp" android:layout_marginBottom="4dp" android:hint="username" /> <EditText android:id="@+id/password" android:inputType="textPassword" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginTop="4dp" android:layout_marginLeft="4dp" android:layout_marginRight="4dp" android:layout_marginBottom="16dp" android:fontFamily="sans-serif" android:hint="password"/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="ok"
android:id="@+id/button"
android:layout_gravity="center_horizontal"
android:layout_weight="4.76" />
</LinearLayout>
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