[직접 풀어보기]
6-1
XML
더보기
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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"
android:orientation="vertical"
tools:context=".MainActivity">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<Chronometer
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/chronometer1"
android:format="예약에 걸린 시간 %s"
android:gravity="center"
android:textSize="20dp"
android:background="#808080"/>
</LinearLayout>
<RadioGroup
android:layout_height="wrap_content"
android:layout_width="match_parent">
<RadioButton
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/rdoCal"
android:text="날짜 설정 (캘린더뷰)"/>
<RadioButton
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/rdoTime"
android:text="시간 설정"/>
</RadioGroup>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:layout_weight="1">
<FrameLayout
android:layout_height="wrap_content"
android:layout_width="match_parent">
<DatePicker
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/datePicker1"
android:showWeekNumber="false"/>
<TimePicker
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/timePicker1"/>
</FrameLayout>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:background="#808080">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/tvYear"
android:text="0000"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="년"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/tvMonth"
android:text="00"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="월"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/tvDay"
android:text="00"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="일"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/tvHour"
android:text="00"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="시"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/tvMinute"
android:text="00"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="분 예약됨"/>
</LinearLayout>
</LinearLayout>
JAVA
더보기
package com.cookandroid.a6_1;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import android.graphics.Color;
import android.os.Bundle;
import android.os.SystemClock;
import android.view.View;
import android.widget.Button;
import android.widget.CalendarView;
import android.widget.Chronometer;
import android.widget.DatePicker;
import android.widget.RadioButton;
import android.widget.TextView;
import android.widget.TimePicker;
public class MainActivity extends AppCompatActivity {
Chronometer chrono;
RadioButton rdoCal, rdoTime;
DatePicker datePicker;
TimePicker tPicker;
TextView tvYear, tvMonth, tvDay, tvHour, tvMinute;
int selectYear, selectMonth, selectDay;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
setTitle("시간 예약");
chrono = (Chronometer) findViewById(R.id.chronometer1);
rdoCal = (RadioButton) findViewById(R.id.rdoCal);
rdoTime = (RadioButton) findViewById(R.id.rdoTime);
tPicker = (TimePicker) findViewById(R.id.timePicker1);
datePicker = (DatePicker) findViewById(R.id.datePicker1);
tvYear = (TextView) findViewById(R.id.tvYear);
tvMonth = (TextView) findViewById(R.id.tvMonth);
tvDay = (TextView) findViewById(R.id.tvDay);
tvHour = (TextView) findViewById(R.id.tvHour);
tvMinute = (TextView) findViewById(R.id.tvMinute);
tPicker.setVisibility(View.INVISIBLE);
datePicker.setVisibility(View.INVISIBLE);
rdoCal.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
tPicker.setVisibility(View.INVISIBLE);
datePicker.setVisibility(View.VISIBLE);
}
});
rdoTime.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
tPicker.setVisibility(View.VISIBLE);
datePicker.setVisibility(View.INVISIBLE);
}
});
chrono.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
chrono.setBase(SystemClock.elapsedRealtime());
chrono.start();
chrono.setTextColor(Color.RED);
rdoCal.setVisibility(View.VISIBLE);
rdoTime.setVisibility(View.VISIBLE);
}
});
tvYear.setOnLongClickListener(new View.OnLongClickListener() {
@Override
public boolean onLongClick(View v) {
chrono.stop();
chrono.setTextColor(Color.BLUE);
tvYear.setText(Integer.toString(datePicker.getYear()));
tvMonth.setText(Integer.toString(datePicker.getMonth()+1));
tvDay.setText(Integer.toString(datePicker.getDayOfMonth()));
tvHour.setText(Integer.toString(tPicker.getCurrentHour()));
tvMinute.setText(Integer.toString(tPicker.getCurrentMinute()));
rdoCal.setVisibility(View.INVISIBLE);
rdoTime.setVisibility(View.INVISIBLE);
tPicker.setVisibility(View.INVISIBLE);
datePicker.setVisibility(View.INVISIBLE);
return false;
}
});
}
}
6-2
XML
더보기
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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"
android:orientation="vertical"
tools:context=".MainActivity">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/btnStart"
android:text=" 사진보기 시작 "/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/btnStop"
android:text=" 사진보기 정지 "/>
</LinearLayout>
<ViewFlipper
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/viewFlipper">
<ImageView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:src="@drawable/img1"/>
<ImageView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:src="@drawable/img2"/>
<ImageView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:src="@drawable/img3"/>
<ImageView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:src="@drawable/img4"/>
</ViewFlipper>
</LinearLayout>
JAVA
더보기
package com.cookandroid.a6_2;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ViewFlipper;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button btnStart, btnStop;
final ViewFlipper viewFlipper;
btnStart = (Button) findViewById(R.id.btnStart);
btnStop = (Button) findViewById(R.id.btnStop);
viewFlipper= (ViewFlipper) findViewById(R.id.viewFlipper);
btnStart.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
viewFlipper.setFlipInterval(1000);
viewFlipper.startFlipping();
}
});
btnStop.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
viewFlipper.stopFlipping();
}
});
}
}
6-3
3번 때문에 거의 1시간동안 삽질했는데 원인이 이미지였다는 사실... 결국 이미지 바꾸고 프로젝트 새로 만들어서 붙여넣었더니 되더랍니다... 내 1시간...
XML
더보기
<?xml version="1.0" encoding="utf-8"?>
<TabHost xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@android:id/tabhost">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<FrameLayout
android:layout_weight="1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@android:id/tabcontent"
>
<ImageView
android:id="@+id/dog"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:src="@drawable/dog"/>
<ImageView
android:id="@+id/cat"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:src="@drawable/cat"/>
<ImageView
android:id="@+id/rabbit"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:src="@drawable/rabbit"/>
<ImageView
android:id="@+id/horse"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:src="@drawable/horse"/>
</FrameLayout>
<TabWidget
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@android:id/tabs"
android:background="#A4A4A4"/>
</LinearLayout>
</TabHost>
JAVA
더보기
package com.cookandroid.test6;
import androidx.appcompat.app.AppCompatActivity;
import android.app.TabActivity;
import android.os.Bundle;
import android.widget.TabHost;
@SuppressWarnings("deprecation")
public class MainActivity extends TabActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
TabHost tabHost=getTabHost();
TabHost.TabSpec tabSpecDog=tabHost.newTabSpec("dog").setIndicator("강아지");
tabSpecDog.setContent(R.id.dog);
tabHost.addTab(tabSpecDog);
TabHost.TabSpec tabSpecCat=tabHost.newTabSpec("cat").setIndicator("고양이");
tabSpecCat.setContent(R.id.cat);
tabHost.addTab(tabSpecCat);
TabHost.TabSpec tabSpecRabbit=tabHost.newTabSpec("rabbit").setIndicator("토끼");
tabSpecRabbit.setContent(R.id.rabbit);
tabHost.addTab(tabSpecRabbit);
TabHost.TabSpec tabSpecHorse=tabHost.newTabSpec("horse").setIndicator("말");
tabSpecHorse.setContent(R.id.horse);
tabHost.addTab(tabSpecHorse);
tabHost.setCurrentTab(0);
}
}
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