我正在创建一个Android应用程序并使用坐标布局,但我遇到了这个错误。已在build.gradle文件和activity_main. xml文件中添加了坐标布局。其他类工作正常,只是在这一行代码中有问题。是否有其他方法可以将坐标布局替换为任何其他布局设计。
这是我的MainActivity.java文件,已经导入了设计布局。在activity_main.xml文件中也是如此。
MainActivity.java
import android.net.Uri;
import android.os.Bundle;
import android.support.design.widget.CoordinatorLayout;
import android.support.design.widget.Snackbar;
import android.support.design.widget.TabLayout;
public class MainActivity extends AppCompatActivity {
...
...
@BindView(R.id.image_preview)
ImageView imagePreview;
@BindView(R.id.tabs)
TabLayout tabLayout;
@BindView(R.id.viewpager)
ViewPager viewPager;
@BindView(R.id.coordinator_layout) //here I'm getting error 'cannot resolve symbol 'coordinate layout''
CoordinatorLayout coordinatorLayout;
...
...
}
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout 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"
tools:context=".MainActivity">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="@style/AppTheme.AppBarOverlay">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="@android:color/white"
app:popupTheme="@style/AppTheme.PopupOverlay" />
</android.support.design.widget.AppBarLayout>
<include layout="@layout/content_main" />
</android.support.design.widget.CoordinatorLayout>
build.gradle
apply plugin: 'com.android.application'
android {
compileSdkVersion 27
defaultConfig {
applicationId "com.example.app"
minSdkVersion 24
targetSdkVersion 27
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'com.android.support:appcompat-v7:27.0.2'
implementation 'com.android.support.constraint:constraint-layout:1.0.2'
implementation 'com.android.support:design:27.0.2'
implementation 'com.android.support:support-v4:27.0.2'
implementation 'android.arch.navigation:navigation-fragment:1.0.0-alpha05'
implementation 'android.arch.navigation:navigation-ui:1.0.0-alpha05'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support.test:runner:1.0.1'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
}
2条答案
按热度按时间anhgbhbe1#
您可以在
<android.support.design.widget.CoordinatorLayout
中添加坐标布局的id,如android:id="@+id/coordinator_layout"
所以它会起作用
8qgya5xd2#
当我加上
我的模块依赖块。