T01.01-Exercise-CreateLayout

Study/Android

2018. 12. 23. 17:47

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T01.01-Exercise-CreateLayout 프로젝트를 열면

맨 아래 TODO 탭을 클릭해 보면 다음과 같이 보인다.

먼저

layout > activity_main.xml 을 수정한다

TODO(1)부터 순서대로 고쳐가면 되기 때문에

exercise code

solution code

<?xml version="1.0" encoding="utf-8"?>
<!--
     Copyright (C) 2016 The Android Open Source Project

     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.
     You may obtain a copy of the License at

          http://www.apache.org/licenses/LICENSE-2.0

     Unless required by applicable law or agreed to in writing, software
     distributed under the License is distributed on an "AS IS" BASIS,
     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     See the License for the specific language governing permissions and
     limitations under the License.
-->
<!--TODO (1) Change the ConstraintLayout to a FrameLayout.
    Note that you don't need to use the fully qualified name for FrameLayout. Replace
    "android.support.constraint.ConstraintLayout" with "FrameLayout"-->
<!--TODO (6) Remove the line that declares the id, we don't need it-->
<android.support.constraint.ConstraintLayout 
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/activity_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <!--TODO (2) Remove all attributes with the word constraint in them-->
    <!--TODO (3) Remove the default text-->
    <!--TODO (4) Give the TextView 16dp of padding-->
    <!--TODO (5) Set the text size to 20sp-->
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Hello World!"
        app:layout_constraintBottom_toBottomOf="@+id/activity_main"
        app:layout_constraintLeft_toLeftOf="@+id/activity_main"
        app:layout_constraintRight_toRightOf="@+id/activity_main"
        app:layout_constraintTop_toTopOf="@+id/activity_main" />

</android.support.constraint.ConstraintLayout>

<?xml version="1.0" encoding="utf-8"?>
<!--
     Copyright (C) 2016 The Android Open Source Project

     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.
     You may obtain a copy of the License at

          http://www.apache.org/licenses/LICENSE-2.0

     Unless required by applicable law or agreed to in writing, software
     distributed under the License is distributed on an "AS IS" BASIS,
     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     See the License for the specific language governing permissions and
     limitations under the License.
-->
<!--COMPLETED (1) Change the ConstraintLayout to a FrameLayout-->
<!--COMPLETED (6) Remove the line that declares the id, we don't need it-->
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <!--COMPLETED (2) Remove all attributes with the word constraint in them-->
    <!--COMPLETED (3) Remove the default text-->
    <!--COMPLETED (4) Give the TextView 16dp of padding-->
    <!--COMPLETED (5) Set the text size to 20sp-->
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:padding="16dp"
        android:textSize="20sp" />
</FrameLayout>

주석으로 된 TODO를 완료하면 COMPLETED로 바꿔주면 확인이 된다.

build.gradle 파일

: constraint-layout을 사용하지 않으므로 모듈을 사용한다는 정의는 제거(제거안해도 되지만 깔끔하게)

exercise

solution

apply plugin: 'com.android.application'

android {
    compileSdkVersion 25
    buildToolsVersion '25.0.2'

    defaultConfig {
        applicationId "com.android.example.favoritetoys"
        minSdkVersion 10
        targetSdkVersion 25
        versionCode 1
        versionName "1.0"
    }
    buildTypes {
        release {
            minifyEnabled false
        }
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    compile 'com.android.support:appcompat-v7:25.1.0'

    // TODO (7) Remove the ConstraintLayout dependency 
    // as we aren't using it for these simple projects
    compile 'com.android.support.constraint:constraint-layout:1.0.0-beta4'
}

apply plugin: 'com.android.application'

android {
    compileSdkVersion 25
    buildToolsVersion '25.0.2'

    defaultConfig {
        applicationId "com.android.example.favoritetoys"
        minSdkVersion 10
        targetSdkVersion 25
        versionCode 1
        versionName "1.0"
    }
    buildTypes {
        release {
            minifyEnabled false
        }
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    compile 'com.android.support:appcompat-v7:25.1.0'
}