화면 중앙에 Rounded Toast 를 띄우기 위한 Class 작성.

CenterToast.java

package io.farmers.common.toast;

import android.app.Activity;
import android.view.Gravity;
import android.view.View;
import android.widget.TextView;
import android.widget.Toast;

import com.kpga.golfstroy.R;


/**
 * The Class CenterToast
 * 
 * 화면 중간에 Toast 를 띄우기 위한 Helper Class 입니다.
 * 
 * @author amond  (amond@farmers.io, amond@amond.net )
 * @see http://farmers.io or http://amond.net
 * @version 1.0
 * 
 */
public class CenterToast {
    
    /** The m toast. */
    static Toast mToast;
    
    /** The shown. */
    static boolean shown = false;

    /**
     * make.
     *
     * @param activity the activity
     * @param text Toast 에 보여지는 text
     * @param duration Toast 가 보여지는 시간
     */
    public static void make(Activity activity, String text, int duration) {
        if (mToast != null)
            mToast.cancel();

        View toastRoot = activity.getLayoutInflater().inflate(R.layout.v_toast, null);
        TextView tv_Text = (TextView) toastRoot.findViewById(R.id.v_toast_text);
        tv_Text.setText(text);
        mToast = new Toast(activity);

        mToast.setView(toastRoot);
        mToast.setDuration(duration);
        mToast.setGravity(Gravity.CENTER_HORIZONTAL | Gravity.CENTER_VERTICAL,
                0, 0);
        mToast.show();
    }
}

toast.xml

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" >

    <padding
        android:bottom="15dp"
        android:left="15dp"
        android:right="15dp"
        android:top="15dp" />

    <corners android:radius="8dp" />

    <!--  투명도 70  -->
    <solid android:color="#46333333" />

</shape>

v_toast.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@drawable/toast"
    android:orientation="vertical" >

    <TextView
        android:id="@+id/v_toast_text"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_vertical"
        android:textSize="20sp" />

</LinearLayout>