실행 화면
전송을 누르면 입력한 값을 다음 화면에 전송한다.
java_MainActivity
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package com.example.smat_501.tutorial6;
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// EditText - 사용자가 텍스트에 입력하면 그 값을 저장하는 객체
final EditText nameText = (EditText) findViewById(R.id.nameText);
Button nameButton = (Button) findViewById(R.id.nameButton);
// 이벤트 처리
nameButton.setOnClickListener(new View.OnClickListener(){
@Override
public void onClick(View v){
String name = nameText.getText().toString();
// Intent - 새로운 창을 열기위해서 필요한 객체
Intent intent = new Intent(getApplicationContext(), SubActivity.class);
intent.putExtra("nameText", name);
startActivity(intent);
}
});
}
}
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java_SubActivity
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package com.example.smat_501.tutorial6;
import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.widget.TextView;
/**
* Created by smat-501 on 2018-01-19.
*/
public class SubActivity extends AppCompatActivity{
@Override
protected void onCreate(Bundle bundle){
super.onCreate(bundle);
setContentView(R.layout.activity_sub);
TextView nameText = (TextView) findViewById(R.id.nameText);
Intent intent = getIntent();
nameText.setText(intent.getStringExtra("nameText").toString());
}
}
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xml_activity_main
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<?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.smat_501.tutorial6.MainActivity">
<EditText
android:id="@+id/nameText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:ems="10"
android:hint="이름"
android:inputType="textPersonName"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.502"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.35" />
<Button
android:id="@+id/nameButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="전송"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</android.support.constraint.ConstraintLayout>
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xml_activity_sub
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<?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">
<TextView
android:id="@+id/nameText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="TextView"
android:textAppearance="@style/TextAppearance.AppCompat.Display1"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</android.support.constraint.ConstraintLayout>
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AndroideManifest.xml
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<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.smat_501.tutorial6">
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<!-- 추가함! -->
<activity android:name=".SubActivity">
</activity>
</application>
</manifest>
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