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[동영상 강좌 ] 블스 - 제 15강 액티비티 - 인텐트 , 생명주기, 화면 전환

2017-09-03 18:46:12 By 머나먼나라 0 821 댓글수 4 포스트 하기

4월 2024
일	월	화	수	목	금	토
	1	2	3	4	5	6
7	8	9	10	11	12	13
14	15	16	17	18	19	20
21	22	23	24	25	26	27
28	29	30

class MainActivity

package com.example.choi.mystudy15;

import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;

import com.example.choi.mystudy15.sample2.Sample2Activity;
import com.example.choi.mystudy15.sample3.Sample3Activity;
import com.example.choi.mystudy15.sample4.Sample4Activity;

public class MainActivity extends AppCompatActivity {

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



    public void onClick(View v){
        Intent intent=null;
        switch (v.getId()){
            case R.id.button1:
                intent=new Intent(this, Sample2Activity.class);
                break;
            case R.id.button2:
                intent=new Intent(this, Sample3Activity.class);
                break;
            case R.id.button3:
                intent=new Intent(this, Sample4Activity.class);
                break;
        }
        startActivity(intent);
    }




}

R.layout.activity_main

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/activity_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.example.choi.mystudy15.MainActivity">

    <Button
        android:text="15-2"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:id="@+id/button1"
        android:background="@android:color/holo_blue_light"
        android:onClick="onClick"
        />

    <Button
        android:text="15-3 (생명주기)"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@+id/button1"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="36dp"
        android:id="@+id/button2"
        android:background="@android:color/holo_green_light"
        android:onClick="onClick"
        />

    <Button
        android:text="15-4(화면전환)"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@+id/button2"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="47dp"
        android:id="@+id/button3"
        android:background="@android:color/holo_orange_light"
        android:onClick="onClick"
        />
</RelativeLayout>

class Sample2Activity

package com.example.choi.mystudy15.sample2;

import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;

import com.example.choi.mystudy15.R;

public class Sample2Activity extends AppCompatActivity {

    Button bt_01;



    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.sample2);

        bt_01=(Button)findViewById(R.id.bt_01);

        bt_01.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent =new Intent(Sample2Activity.this, Sample2SecondActivity.class);
                startActivity(intent);
            }
        });


    }
}

R.layout.sample2

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/sample2"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.example.choi.mystudy15.sample2.Sample2Activity">


    <Button
        android:id="@+id/bt_01"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:padding="10px"
        android:text="@string/go_second_activity"
        android:layout_marginTop="54dp"
        android:background="@android:color/holo_red_light"
        android:layout_below="@+id/textView"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true"
        android:textColor="@android:color/background_light" />

    <TextView
        android:text="Sample2"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/textView"
        android:textSize="24sp"
        android:textAlignment="center"
        android:textStyle="normal|bold"
        android:layout_alignParentTop="true"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true" />


</RelativeLayout>

class Sample3Activity

package com.example.choi.mystudy15.sample3;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;

import com.example.choi.mystudy15.R;

public class Sample3Activity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        Log.i("Sample3Activity", "onCreate()");
        super.onCreate(savedInstanceState);
        setContentView(R.layout.sample3);
    }


    @Override
    protected void onStart() {
        Log.i("Sample3Activity", "onStart()");
        super.onStart();
    }

    @Override
    protected void onResume() {
        Log.i("Sample3Activity", "onResume()");
        super.onResume();
    }


    @Override
    protected void onPause() {
        Log.i("Sample3Activity", "onPause()");
        super.onPause();
    }


    @Override
    protected void onStop() {
        Log.i("Sample3Activity", "onStop()");
        super.onStop();
    }

    @Override
    protected void onDestroy() {
        Log.i("Sample3Activity", "onDestroy()");
        super.onDestroy();
    }




}

03-05 19:31:10.642 4175-4175/com.example.choi.mystudy15 I/Sample3Activity: onCreate()
03-05 19:31:10.649 4175-4175/com.example.choi.mystudy15 I/Sample3Activity: onStart()
03-05 19:31:10.649 4175-4175/com.example.choi.mystudy15 I/Sample3Activity: onResume()
03-05 19:31:44.226 4175-4175/com.example.choi.mystudy15 I/Sample3Activity: onPause()
03-05 19:31:44.566 4175-4175/com.example.choi.mystudy15 I/Sample3Activity: onStop()
03-05 19:31:44.567 4175-4175/com.example.choi.mystudy15 I/Sample3Activity: onDestroy()

class Sample4Activity

package com.example.choi.mystudy15.sample4;

import android.content.pm.ActivityInfo;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;

import com.example.choi.mystudy15.R;

public class Sample4Activity extends AppCompatActivity {

    Button button1;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.sample4);

        button1 =(Button)findViewById(R.id.button1);

        button1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                if( getRequestedOrientation()==ActivityInfo.SCREEN_ORIENTATION_PORTRAIT){

                    setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
                }else{
                    setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
                }

            }
        });
    }


}

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/sample4"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.example.choi.mystudy15.sample4.Sample4Activity">

    <TextView
        android:text="Sample4"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:id="@+id/textView3"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true"
        android:textSize="24sp"
        android:textAlignment="center"
        android:textStyle="normal|bold" />

    <Button
        android:text="화면방향전환"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@+id/textView3"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="24dp"
        android:id="@+id/button1" />
</RelativeLayout>