One of the things important is not to forget permission to the Manifest. Already become habit to forget.
중요한 것 중의 하나는 Manifest에 permission을 주는 것이다. 자꾸 까먹는다.
Manifest
</activity>
<activity android:name=".Part01" android:label="Part01"> </activity>
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MainActivity.java
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
public void mOnClick_part1(View v){
Intent intent_part01 = new Intent(this, Part01.class);
startActivity(intent_part01);
}
}
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Part01.java
public class Part01 extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.part01);
}}
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activity_main.xlm
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center">
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Part01"
android:id="@+id/button_part1"
android:onClick="mOnClick_part1"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true"
android:background="#ff1725" /> </RelativeLayout> |
part01.xlm
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="500dp">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceMedium"
android:text="Part01 호출되었습니다."
android:id="@+id/textView"
android:layout_gravity="center_horizontal" />
</RelativeLayout> |