【 Android Studio 】 - 토스트 메세지 띄우기 ( Toast Message )

【 Android Studio 】 - 토스트 메세지 띄우기 ( Toast Message )

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 @ 토스트 메세지 띄우기 ( Toast Message )

가장 기본중의 기본이다.

그런데 난 어렵다. ㅠㅠ

열심히 하다보면 지금보다 훨씬 나아질꺼라 믿으면서 고고씽~! ^^

@ activity_mail.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout 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"
    tools:context="com.example.admin.myapplication.MainActivity">

    <Button
        android:id="@+id/tView01"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:onClick="onButton1Clicked"
        android:text="Button"
        android:layout_marginRight="8dp"
        app:layout_constraintRight_toRightOf="parent"
        android:layout_marginLeft="8dp"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintBottom_toBottomOf="parent"
        android:layout_marginBottom="8dp"
        android:layout_marginTop="8dp"
        app:layout_constraintTop_toBottomOf="@+id/eText01"
        app:layout_constraintVertical_bias="0.0" />

    <EditText
        android:id="@+id/eText01"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:ems="10"
        android:inputType="textPersonName"
        android:text="Name"
        app:layout_constraintBottom_toBottomOf="parent"
        android:layout_marginBottom="8dp"
        app:layout_constraintTop_toTopOf="parent"
        android:layout_marginTop="8dp"
        android:layout_marginRight="8dp"
        app:layout_constraintRight_toRightOf="parent"
        android:layout_marginLeft="8dp"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintHorizontal_bias="0.503"
        app:layout_constraintVertical_bias="0.059" />

</android.support.constraint.ConstraintLayout>

@ MainActivity.java

package com.example.admin.myapplication;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {

    EditText mEt;
    Button mBtn;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        mEt = (EditText) findViewById(R.id.eText01);
        mBtn = (Button) findViewById(R.id.tView01);

        mBtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                String msg = mEt.getText().toString();
                Toast.makeText(getApplicationContext(), msg, Toast.LENGTH_LONG).show();
            }
        });
    }
}

http://insurang.tistory.com