Android Studio项目整合PullToRefresh的问题记录
PullToRefresh下拉刷新在App中應用非常頻繁,然而PullToRefresh是在ADT下開發完成的。如果要將其整合到Android Studio目錄下的話頗費周折。前面的文章“Android Studio項目引入外部庫注意事項(PullToRefresh)”介紹了如何將PullToRefresh的library引入到項目中。如果想直接運用PullToRefresh的例子的話還需要引入extras下的PullToRefreshListFragment和PullToRefreshViewPager兩個庫。
然而,PullToRefreshListFragment和PullToRefreshViewPager兩個庫的引入卻大動干戈。其實問題不大,只是對Gradle不熟悉,折騰了好久才知道問題所在。記錄如下:
1、包重復引入
Error:Execution failed for task ':app:dexDebug'. > com.android.ide.common.process.ProcessException: org.gradle.process.internal.ExecException: Process 'command 'D:\Program Files\Java\jdk1.8.0_60\bin\java.exe'' finished with non-zero exit value 2將android-support-v4.jar包刪除以后又報如下異常:
D:\AndroidStudioProjects\AndoridNewsApp\PullToRefreshExtras\PullToRefreshListFragment\src\com\handmark\pulltorefresh\extras\listfragment\PullToRefreshBaseListFragment.java Error:(19, 30) 錯誤: 程序包android.support.v4.app不存在 Error:(28, 106) 錯誤: 找不到符號 符號: 類 ListFragment Error:(32, 2) 錯誤: 方法不會覆蓋或實現超類型的方法 Error:(34, 17) 錯誤: 找不到符號 符號: 變量 super 位置: 類 PullToRefreshBaseListFragment<T> 其中, T是類型變量: T擴展已在類 PullToRefreshBaseListFragment中聲明的PullToRefreshBase<? extends AbsListView>解決辦法:
a、將extras\PullToRefreshListFragment\libs下的android-support-v4.jar刪除
b、添加包依賴(?File --> project structure --> dependencies?)
也可以直接在extras\PullToRefreshListFragment\build.gradle中的dependencies下直接添加compile 'com.android.support:support-v4:23.0.1'
dependencies {compile fileTree(include: ['*.jar'], dir: 'libs')compile project(':PullToRefresh')compile 'com.android.support:support-v4:23.0.1' }2、最小sdk版本
Error:Execution failed for task ':PullToRefreshExtras:PullToRefreshListFragment:processDebugAndroidTestManifest'. > java.lang.RuntimeException: Manifest merger failed : uses-sdk:minSdkVersion 1 cannot be smaller than version 4 declared in library [AndoridNewsApp:PullToRefresh:unspecified] D:\AndroidStudioProjects\AndoridNewsApp\PullToRefreshExtras\PullToRefreshListFragment\build\intermediates\exploded-aar\AndoridNewsApp\PullToRefresh\unspecified\AndroidManifest.xmlSuggestion: use tools:overrideLibrary="com.handmark.pulltorefresh.library" to force usage在extras\PullToRefreshListFragment\build.gradle中最小sdk版本設置
android {......//其它配置 defaultConfig {minSdkVersion 14targetSdkVersion 23}......//其它配置 }最終extras\PullToRefreshListFragment\build.gradle如下:
apply plugin: 'com.android.library' android {compileSdkVersion 23buildToolsVersion "23.0.0"defaultConfig {minSdkVersion 14targetSdkVersion 23}sourceSets {main {manifest.srcFile 'AndroidManifest.xml'java.srcDirs = ['src']resources.srcDirs = ['src']aidl.srcDirs = ['aidl']renderscript.srcDirs = ['src']res.srcDirs = ['res']assets.srcDirs = ['assets']}} }dependencies {compile fileTree(include: ['*.jar'], dir: 'libs')compile project(':PullToRefresh')compile 'com.android.support:support-v4:23.0.1' }?
總結
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