Custom Toast

MainActivity.java

package jp.codeforfun.customtoast;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
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);
    }

    public void showToast(View view) {
        LayoutInflater layoutInflater = getLayoutInflater();
        View customToastView = layoutInflater.inflate(R.layout.toast_layout, null);

        // TextViewのテキストを変更する
        ((TextView)customToastView.findViewById(R.id.msg)).setText("Hello World!");

        Toast toast = Toast.makeText(customToastView.getContext(), "", Toast.LENGTH_LONG);
        toast.setGravity(Gravity.CENTER, 0, 0);
        toast.setView(customToastView);
        toast.show();
    }
}