Activity as a dialog box in android

• Create project named ActivityAsDialog.
• Add following code in activity_main.xml layout file.

activity_main.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:tools="http://schemas.android.com/tools"

    android:layout_width="fill_parent"

    android:layout_height="fill_parent"

    android:background="@drawable/border_t"

    android:padding="20dp"

    android:orientation="vertical" >

    

    <TextView

        android:id="@+id/tvsmsNo"

        android:layout_width="fill_parent"

        android:layout_height="wrap_content"

        android:text="SMS No"

        android:textSize="28dp"

        android:lines="1"

        android:textColor="#fff" />

    <TextView

        android:id="@+id/tvsmsBody"

        android:layout_width="fill_parent"

        android:layout_height="wrap_content"

        android:textSize="18dp"

        android:layout_marginTop="15dp"

        android:text="Body"

        android:maxLines="10"

        android:textColor="#fff" />

    <Button

        android:id="@+id/btnOk"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="OK"

        android:textSize="28dp"

        android:padding="14dp"

        android:layout_marginTop="15dp"

        android:scrollbars="vertical"

        android:layout_gravity="center" />

    

</LinearLayout>

NOTE: Change root linear layout background "#000000" or set your image.Otherwise it will throw Exception - NoResourceFound.

• Add following code in MainActivity.java file.

MainActivity.java

public class MainActivity extends Activity {

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

TextView tvNo = (TextView)findViewById(R.id.tvsmsNo);

TextView tvBody = (TextView)findViewById(R.id.tvsmsBody);

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

String body = "Hi, How are you?";

tvNo.setText("SMS:9876543210");

tvBody.setText(body);

tvBody.setMovementMethod(new ScrollingMovementMethod());

btnOk.setOnClickListener(new OnClickListener() {

public void onClick(View v) {

MainActivity.this.finish();

}

});

}

}

• Now Add following code in res/values/styles.xml file.

styles.xml

<style name="Theme.UserDialog" parent="android:style/Theme.Dialog">

        <item name="android:windowFrame">@null</item>

        <item name="android:windowIsFloating">true</item>

        <item name="android:windowIsTranslucent">true</item>

        <item name="android:windowNoTitle">true</item>

        <item name="android:background">@android:color/transparent</item>

        <item name="android:windowBackground">@android:color/transparent</item>

    </style>

    

• At Last Change your activity theme in menifest.xml as below.

Menifest.xml

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

    package="com.example.activityasadialogbox"

    android:versionCode="1"

    android:versionName="1.0" >

    <uses-sdk

        android:minSdkVersion="8"

        android:targetSdkVersion="17" />

    <application

        android:allowBackup="true"

        android:icon="@drawable/ic_launcher"

        android:label="@string/app_name"

        android:theme="@style/Theme.UserDialog" >

        <activity

            android:name="com.example.activityasadialogbox.MainActivity"

            android:label="@string/app_name" >

            <intent-filter>

                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />

            </intent-filter>

        </activity>

    </application>

</manifest>

• Done ! Now Run project.