농부지기

  1. MainActivity.java

 package com.example.farmer.layoutjavacreate;

import android.graphics.Color;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.Button;
import android.widget.LinearLayout;

public class MainActivity extends AppCompatActivity {

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

        useDynamic();
    }
    //동적으로 Layout및 버튼 생성
    private void useDynamic(){
        //1. Layout 생성
        LinearLayout layoutMain = new LinearLayout(getApplicationContext());
        LinearLayout.LayoutParams paramsLayout = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.MATCH_PARENT);
        layoutMain.setOrientation(LinearLayout.VERTICAL);
        layoutMain.setLayoutParams(paramsLayout);
        //layoutMain.setBackground(Color.parseColor("#ffffff"));

        //2. Button 생성
        Button button01 = new Button(getApplicationContext());
        Button button02 = new Button(getApplicationContext());
        LinearLayout.LayoutParams paramsButton = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
        button01.setLayoutParams(paramsButton);
        button02.setLayoutParams(paramsButton);

        layoutMain.addView(button01);
        layoutMain.addView(button02);

        button01.setText("버튼 1");
        button02.setText("버튼 2");

        setContentView(layoutMain);  //layoutMain은 View임
    }
}

 1. MainActivity.java 

package com.example.farmer.togglecustom;

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

public class MainActivity extends AppCompatActivity {
    Button test1Button;
    Button test2Button;

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

        test1Button = (Button)findViewById(R.id.test1_button);
        test2Button = (Button)findViewById(R.id.test2_button);

        test1Button.setOnClickListener(topButtonsListener);
        test2Button.setOnClickListener(topButtonsListener);
        test1Button.performClick();  //첫번째 버튼을 눌린 효과를 줌
    }

    View.OnClickListener topButtonsListener  = new View.OnClickListener(){
        @Override
        public void onClick(View view) {
            if (view.getId() == R.id.test1_button){
                test1Button.setSelected(true);
                test2Button.setSelected(false);
            }
            else{
                test1Button.setSelected(false);
                test2Button.setSelected(true);
            }
        }
    };


}

  2. activity_main.java

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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.farmer.togglecustom.MainActivity">

        <Button
            android:id="@+id/test1_button"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginLeft="20dp"
            android:layout_marginTop="10dp"
            android:layout_marginBottom="10dp"
            android:layout_weight="1"
            android:textColor="@color/selector_buttons_text"
            android:background="@drawable/selector_btn_left"
            android:text="Test 1"/>

        <Button
            android:id="@+id/test2_button"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginRight="20dp"
            android:layout_marginTop="10dp"
            android:layout_marginBottom="10dp"
            android:textColor="@color/selector_buttons_text"
            android:background="@drawable/selector_btn_right"
            android:text="Test 2"
            android:layout_weight="1"/>


</LinearLayout>

  3. drawable/selector_btn_left.xml

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android" >
    <item android:drawable="@color/gen_app_color" android:state_pressed="true" />
    <item android:drawable="@color/gen_app_color" android:state_selected="true" />
    <item android:drawable="@drawable/shape_btn_unselected_left" />
</selector>

  4. drawable/selector_btn_right.xml

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android" >
    <item android:drawable="@color/gen_app_color" android:state_pressed="true" />
    <item android:drawable="@color/gen_app_color" android:state_selected="true" />
    <item android:drawable="@drawable/shape_btn_unselected_right" />
</selector>

  5. drawable/selector_buttons_text.xml

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_selected="true" android:color="@android:color/white" />
    <item android:state_pressed="true" android:color="@android:color/white" />
    <item android:color="@color/gen_app_color"/>
</selector>

  6. drawable/shape_btn_unselected_left.xml

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item >
        <shape android:shape="rectangle">
            <solid android:color="@android:color/white"/>
            <stroke android:width="5px" android:color="#337799" />
        </shape>
    </item>
    <item android:left="5dp"
        android:top="2dp"
        android:bottom="2dp">
        <shape android:shape="rectangle">
            <solid android:color="#FFFFFF" />
        </shape>
    </item>
</layer-list>

  7. drawable/shape_btn_unselected_right.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <color name="colorPrimary">#3F51B5</color>
    <color name="colorPrimaryDark">#303F9F</color>
    <color name="colorAccent">#FF4081</color>

    <color name="gen_app_color">#40ffe6</color>
    <color name="selector_buttons_text">#ff404a</color>
</resources>

  8. values/colors.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <color name="colorPrimary">#3F51B5</color>
    <color name="colorPrimaryDark">#303F9F</color>
    <color name="colorAccent">#FF4081</color>

    <color name="gen_app_color">#40ffe6</color>
    <color name="selector_buttons_text">#ff404a</color>
</resources>

  1. MainActivity.java

package com.example.farmer.clickevent;

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 implements View.OnClickListener{

    Button btn1;
    Button btn2;
    Button btn3;
    Button btn4;
    Button btn5;
    Button btn6;
    Button btn7;
    EditText et01;

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

        btn1 = (Button)findViewById(R.id.btn01);
        btn2 = (Button)findViewById(R.id.btn02);
        btn3 = (Button)findViewById(R.id.btn03);
        btn4 = (Button)findViewById(R.id.btn04);
        btn5 = (Button)findViewById(R.id.btn05);
        btn6 = (Button)findViewById(R.id.btn06);
        btn7 = (Button)findViewById(R.id.btn07);
        et01 = (EditText)findViewById(R.id.editText01);

        //1. 익명 내부 클래스 : 클래스 이름이 없다.
        //   일회성 : 한번만 쓸 때 사용
        btn1.setOnClickListener(new View.OnClickListener(){
            @Override
            public void onClick(View view) {
                et01.setText("1. 익명 내부 클래스 처리");
                showToast("1. 익명 내부 클래스 처리");
            }
        });

        //2. 유명 내부 클래스
        View.OnClickListener onClickListener = new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                et01.setText("2. 유명 내부 클래스 처리");
                showToast("2. 유명 내부 클래스 처리");
            }
        };
        btn2.setOnClickListener(onClickListener);

        //3. 유명 내부 클래스
        btn3.setOnClickListener(new InnerHandler());

        //4. 제3클래스로 처리
        btn4.setOnClickListener(new ClickHandler(MainActivity.this));

        //5. 자신의 클래스로 처리
        //   이건   [public class MainActivity extends AppCompatActivity implements View.OnClickListener]
        //          이렇게 함으로써 처리 됨
        //   아래 [public void onClick(View view) { ] 와 연결 됨
        btn5.setOnClickListener(this);

        //7.
        btn7.setOnClickListener(onClickListener7);
    }

    //3. 유명 내부 클래스
    class InnerHandler implements View.OnClickListener{
        public void onClick(View view) {
            et01.setText("3. 유명 내부 클래스 처리");
            showToast("3. 유명 내부 클래스 처리");
        }
    }

    //5. 자신의 클래스로 처리
    //   이건   [public class MainActivity extends AppCompatActivity implements View.OnClickListener]
    //          이렇게 함으로써 처리 됨
    //   위쪽 [btn5.setOnClickListener(this);] 이 script로 연결됨
    @Override
    public void onClick(View view) {
        et01.setText("5. 자신의 클래스로 처리");
        showToast("5. 자신의 클래스로 처리");
    }

    //6. XML에서 핸들러 이벤트 저장
    public void xmlHandlerMethod(View view){
        et01.setText("6. XML에서 핸들러 이벤트 저장");
        showToast("6. XML에서 핸들러 이벤트 저장");
    }

    //7. 유명 외부 메소드
    private  View.OnClickListener onClickListener7 = new View.OnClickListener(){
        @Override
        public void onClick(View view) {
            et01.setText("7. 유명 외부 메소드");
            showToast("7. 유명 외부 메소드");
        }
    };


    public void showToast(String msg){
        Toast.makeText(this, msg, Toast.LENGTH_SHORT).show();
    }
}

  2. CllickHandler.java

package com.example.farmer.clickevent;

import android.view.View;

/**
* Created by farmer on 2017-01-07.
*/

public class ClickHandler implements View.OnClickListener {
    MainActivity activity;

    public ClickHandler(MainActivity activity) {
        this.activity = activity;
    }

    @Override
    public void onClick(View view) {
        activity.et01.setText("4. 제3클래스로 처리");
        activity.showToast("4. 제3클래스로 처리");
    }
}

  3. activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    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:orientation="vertical"
    tools:context="com.example.farmer.clickevent.MainActivity">

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="5dp"
        android:gravity="center"
        android:textSize="30dp"
        android:text="OnClickEvent"
        android:id="@+id/textView" />

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

        <Button
            android:id="@+id/btn01"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="버튼 1"/>

        <Button
            android:id="@+id/btn06"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:onClick="xmlHandlerMethod"
            android:text="버튼 6 (xml)"/>
    </LinearLayout>

    <Button
        android:id="@+id/btn02"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="버튼 2"/>
    <Button
        android:id="@+id/btn03"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="버튼 3"/>
    <Button
        android:id="@+id/btn04"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="버튼 4"/>
    <Button
        android:id="@+id/btn05"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="버튼 5"/>
    <Button
        android:id="@+id/btn07"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="버튼 7"/>

    <EditText
        android:id="@+id/editText01"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:gravity="top"
        android:editable="false"
        android:hint="hint"/>
</LinearLayout>