我有一个简单的类写在Android Studio:
package com.mysite.myapp;
import org.apache.http.client.HttpClient;
public class Whatever {
public void headBangingAgainstTheWallExample () {
HttpClient client = new DefaultHttpClient();
}
}
从这里我得到了以下编译时错误:
无法解析HttpClient符号
HttpClient不是包含在Android Studio SDK中吗?即使不是,我也像这样把它添加到我的Gradle构建中:
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.android.support:appcompat-v7:23.0.0'
compile 'org.apache.httpcomponents:httpclient:4.5'
}
不管有没有最后一个编译行,错误都是一样的。我错过了什么?
在SDK级别23中使用Apache HTTP:
顶层构建。Gradle - /build.gradle
buildscript {
...
dependencies {
classpath 'com.android.tools.build:gradle:1.5.0'
// Lowest version for useLibrary is 1.3.0
// Android Studio will notify you about the latest stable version
// See all versions: http://jcenter.bintray.com/com/android/tools/build/gradle/
}
...
}
Android工作室关于gradle更新的通知:
特定于模块的构建。Gradle - /app/build.gradle
android {
compileSdkVersion 23
buildToolsVersion "23.0.2"
...
useLibrary 'org.apache.http.legacy'
...
}
你只需要加一行
useLibrary 'org.apache.http.legacy'
为构建。例如gradle(Module: app)
apply plugin: 'com.android.application'
android {
compileSdkVersion 24
buildToolsVersion "25.0.0"
useLibrary 'org.apache.http.legacy'
defaultConfig {
applicationId "com.avenues.lib.testotpappnew"
minSdkVersion 15
targetSdkVersion 24
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
exclude group: 'com.android.support', module: 'support-annotations'
})
compile 'com.android.support:appcompat-v7:24.2.1'
testCompile 'junit:junit:4.12'
}