更新android studio 3.1.2后,我现有的项目给出错误
dataBinding.enabled = true
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错误如下 -
Failed to resolve: com.android.databinding:library:3.1.2
Failed to resolve: com.android.databinding:adapters:3.1.2
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我的gradle依赖如下 -
dependencies {
implementation fileTree(include: ['*.jar'], dir: 'libs')
implementation 'com.android.support:appcompat-v7:25.1.0'
implementation 'com.android.support:recyclerview-v7:25.1.0'
implementation 'com.android.support:preference-v7:25.1.0'
implementation 'com.android.support.constraint:constraint-layout:1.0.0-beta3'
implementation 'com.firebase:firebase-jobdispatcher:0.5.0'
// Instrumentation dependencies use androidTestCompile
// (as opposed to testCompile for local unit tests run in the JVM)
androidTestImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support:support-annotations:25.1.0'
androidTestImplementation 'com.android.support.test:runner:0.5'
androidTestImplementation 'com.android.support.test:rules:0.5'
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}
我也试过了
android.databinding.enableV2=true
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但它也没有用
当我尝试将构建工具版本更新到4.4时,我发现了这个错误.如果我不更新构建工具版本,那么它的工作正常.
我想更新我的首选项摘要,在这里找到了一个名为SimpleSummaryProvider的东西。但就我而言,这是指找不到属性,app:useSimpleSummaryProvider
而在Java代码中,则是无法解析SummaryProvider类。我的应用程序级别构建Gradle依赖项为-
implementation fileTree(include: ['*.jar'], dir: 'libs')
implementation 'com.android.support:appcompat-v7:28.0.0'
androidTestImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support:support-annotations:28.0.0'
androidTestImplementation 'com.android.support.test:runner:1.0.2'
androidTestImplementation 'com.android.support.test:rules:1.0.2'
implementation 'com.android.support:recyclerview-v7:28.0.0'
implementation 'com.android.support.constraint:constraint-layout:1.1.3'
implementation 'com.android.support:design:28.0.0'
implementation 'com.android.support:preference-v7:28.0.0'
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我不知道我是否想念什么。我将不胜感激
我正在使用体系结构组件视图模型的LiveData填充回收器视图,并想添加一个searchview过滤器,但找不到任何解决方案。我尝试在适配器中使用可过滤的接口,但它也无法正常工作,这是可能的,因为视图模型不允许更改。
我的适配器是-
public class NetworkAdapter extends RecyclerView.Adapter<NetworkAdapter.NetworksViewHolder> implements Filterable {
// Member variable to handle item clicks
final private ItemClickListener mItemClickListener;
// Class variables for the List that holds task data and the Context
private List<NetworkEntry> mNetworkEntries;
private List<NetworkEntry> mFilteredNetworkEntries = new ArrayList<>();
private Context mContext;
/**
* Constructor for the TaskAdapter that initializes the Context.
*
* @param context the current Context
* @param listener the ItemClickListener
*/
public NetworkAdapter(Context context, ItemClickListener listener) {
mContext = context;
mItemClickListener = …
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我正在尝试将 mp4 文件转换为低帧率和低分辨率视频,为此我正在尝试使用 bigflake.com 中的示例。但是当我复制一个 EncodeDecodeTest 类时,它无法解析 InputSurface 和 OutputSurface 类。我用谷歌搜索但没有找到任何东西。
我正在尝试通过方法计算多边形的面积SphericalUtil.computeArea()
,但无法解析符号SphericalUtil
。
我已将以下行放入gradle.build
compile 'com.google.maps.android:android-maps-utils:0.4.+'
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