Android Program : Develop an Android application that create custom Alert Dialog containing Friends Name and onClick of Friend Name Button greet accordingly.
custom_layout.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:paddingLeft="20dp"
android:paddingRight="20dp"
android:layout_width="match_parent"
android:layout_height="match_parent">
<EditText
android:id="@+id/editText"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
</LinearLayout>
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
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"
android:gravity="center"
android:id="@+id/root"
android:orientation="vertical"
tools:context=".MainActivity">
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:onClick="showAlertDialogButtonClicked"
android:text="Show Dialog"
/>
</LinearLayout>
MainActivity.java
import androidx.appcompat.app.AppCompatActivity;
public class MainActivity extends AppCompatActivity { @Override protected void onCreate( Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); } public void showAlertDialogButtonClicked(View view) { // Create an alert builder AlertDialog.Builder builder = new AlertDialog.Builder(this); builder.setTitle("Name"); // set the custom layout final View customLayout = getLayoutInflater() .inflate( R.layout.custom_layout, null); builder.setView(customLayout); // add a button builder .setPositiveButton( "OK", new DialogInterface.OnClickListener() { @Override public void onClick( DialogInterface dialog, int which) { // send data from the // AlertDialog to the Activity EditText editText = customLayout .findViewById( R.id.editText); sendDialogDataToActivity( editText .getText() .toString()); } }); // create and show // the alert dialog AlertDialog dialog = builder.create(); dialog.show(); } // Do something with the data // coming from the AlertDialog private void sendDialogDataToActivity(String data) { Toast.makeText(this, data, Toast.LENGTH_SHORT) .show(); } }
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