我正在使用默认的RecyclerView快速滚动,我按照本指南来支持它.
现在,问题是拇指根据数据集的大小调整其高度.对于100以上的大件物品,拇指变得非常小,几乎难以对拖动作出反应.
请问有什么方法可以为快速滚动拇指设置最小高度.
类似的问题已经被问这里,这里和这里,但背景是从这个完全不同,而且,从这个错误给代码是由Android和Android工作室的制作者编写的.
这是代码:
public class MySingleton {
private static MySingleton mInstance;
private RequestQueue mRequestQueue;
private ImageLoader mImageLoader;
private static Context mCtx;
private MySingleton(Context context) {
mCtx = context;
mRequestQueue = getRequestQueue();
mImageLoader = new ImageLoader(mRequestQueue,
new ImageLoader.ImageCache() {
private final LruCache<String, Bitmap>
cache = new LruCache<String, Bitmap>(20);
@Override
public Bitmap getBitmap(String url) {
return cache.get(url);
}
@Override
public void putBitmap(String url, Bitmap bitmap) {
cache.put(url, bitmap);
}
});
}
public static synchronized MySingleton …我尝试部署firebase函数,但由于ESLint的某些问题,它一直在失败.我也试过谷歌搜索答案,但我看到的一切都是希腊语给我.
// // Create and Deploy Your First Cloud Functions
// // https://firebase.google.com/docs/functions/write-firebase-functions
//
// exports.helloWorld = functions.https.onRequest((request, response) => {
// response.send("Hello from Firebase!");
// });
//import firebase functions modules
const functions = require("firebase-functions");
//import admin module
const admin = require("firebase-admin");
admin.initializeApp(functions.config().firebase);
// Listens for new messages added to messages/:pushId
exports.pushNotification = functions.database.ref("/Message").onWrite( event => {
// Grab the current value of what was written to the Realtime Database.
var valueObject = event.data.val(); …我正在尝试将自定义模型加载到Glide中但收到此错误:
GlideExecutor:请求抛出未捕获的throwable com.bumptech.glide.Registry $ NoModelLoaderAvailableException:无法找到模型的任何ModelLoaders:com.company.project.glide.Movie@aac331a
滑翔版:4.0.0
模型
public class Movie {
private String name;
private String artist;
public Movie(String name, String artist) {
this.name = name;
this.artist = artist;
}
public String getName() {
return name;
}
public String getArtist() {
return artist;
}
}
模
@com.bumptech.glide.annotation.GlideModule
public class GlideModule extends AppGlideModule {
@Override
public boolean isManifestParsingEnabled() {
return false;
}
@Override
public void applyOptions(Context context, GlideBuilder builder) {
super.applyOptions(context, builder);
}
@Override
public void registerComponents(Context context, Registry …在详细介绍Android Studio 2.1稳定版本功能的官方帖子中,我遇到了这个:
我们还通过使用进程内dex来加速构建时间,该进程dex将类文件转换为Gradle守护程序进程中的dex文件.这避免了创建单独的dex进程的昂贵处理操作.要使用此功能,您需要将Gradle守护程序可用的内存量增加到至少2GB(默认值为1 GB).
请问,如何增加Gradle可用的内存？
我一直在使用凌空网络库一段时间了.为了向用户显示他们的请求被发送,我向他们展示了一个不确定的进度条,我将其隐藏在onResponse或中onErrorResponse.
Bot现在,我想向用户显示请求的进度并更新进度条的进度.从本质上讲,我不想再使用不确定的.
说我正在提出这个请求:
/ Instantiate the RequestQueue.
RequestQueue queue = Volley.newRequestQueue(this);
String url ="http://www.google.com";
//Show progressBar here
// Request a string response from the provided URL.
StringRequest stringRequest = new StringRequest(Request.Method.GET, url,
new Response.Listener<String>() {
@Override
public void onResponse(String response) {
//I Hide progressBar here, and parse and display the response.
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
//I Hide progressBar here also and show a dialog to retry.
}
});
// …我使用 firebase 发送通知。当应用程序在前台时，通知由扩展的类接收FirebaseMessagingService。所以在onMessageReceived，我这样做：
EventBus.getDefault().postSticky(new NotificationEvent(body, title, url));
我有两个活动可以侦听此事件。活动 A 和活动 B。
在这两项活动中，我都这样做：
@Subscribe(sticky = true, threadMode = ThreadMode.MAIN)
public void consumeNotification(NotificationEvent event) {
//Consume event
}
@Override
public void onStart() {
super.onStart();
EventBus.getDefault().register(this);
Log.d(TAG, "onStart called");
}
@Override
public void onStop() {
NotificationEvent event = EventBus.getDefault().getStickyEvent(NotificationEvent.class);
if (event != null) {
EventBus.getDefault().removeStickyEvent(event);
}
EventBus.getDefault().unregister(this);
super.onStop();
Log.d(TAG, "onStop called");
}
现在，Activity A 中有一个按钮可以启动 Activity B。
如果活动 A 在屏幕上可见，并且我收到通知（触发事件），则第一次使用该事件。
因此，当我单击按钮启动 Activity B（onStop在 Activity A 上调用）时，但令人惊讶的是，当它onStop …
我正在尝试将智能横幅广告投放到我的片段布局中,而我所得到的就是"没有足够的空间展示广告.需要320x50 dp,但只有309x0 dp".
这是我的片段布局.
<android.support.v4.widget.NestedScrollView
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="wrap_content"
xmlns:ads="http://schemas.android.com/apk/res-auto"
android:scrollbars="vertical"
android:fillViewport="true"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/details_layout"
android:background="@android:color/white"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
tools:context="com.app.bookng.DetailsFragment">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/details_relat"
android:padding="5dp">
<com.google.android.gms.ads.AdView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_alignParentBottom="true"
android:id="@+id/banner_id"
ads:adSize="SMART_BANNER"
ads:adUnitId="XXXXXXXXXXXXXXXXXXXXXXXXXXXX"/>
<ProgressBar
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="10dp"
android:indeterminate="true"
android:id="@+id/progress_circle"
android:visibility="gone"
style="?android:attr/progressBarStyleHorizontal"
android:layout_centerInParent="true"/>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceMedium"
android:hint="@string/title"
android:id="@+id/dbook_title"
android:visibility="gone"
android:layout_margin="5dp"
android:textStyle="bold"/>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="30dp"
android:layout_marginTop="20dp"
android:layout_marginRight="10dp"
android:layout_marginLeft="10dp"
android:layout_below="@+id/dbook_title"
android:id="@+id/rootauthor_date"
android:gravity="center_vertical">
<View
android:layout_width="match_parent"
android:layout_height="1dp"
android:layout_marginLeft="10dp"
android:visibility="gone"
android:background="#d1d1d1"
android:layout_alignParentTop="true"
android:id="@+id/dviewtop"
android:layout_marginTop="15dp"
android:layout_toRightOf="@+id/author_img"/>
<com.app.bookng.CircularNetworkImageView
android:layout_width="90dp"
android:layout_height="90dp"
android:visibility="gone"
android:padding="3dp"
android:layout_alignParentLeft="true"
android:id="@+id/author_img"
android:scaleType="centerCrop"
android:background="@drawable/round_button"/>
<TextView
android:layout_width="wrap_content"
android:visibility="gone" …我正在尝试在RecyclerView中实现滑动删除.除了在正在刷卡的项目下面绘制一个删除图标外,一切似乎都运行正常.
这就是我这样做的方式:
ItemTouchHelper.SimpleCallback simpleItemTouchCallback = new ItemTouchHelper.SimpleCallback(0, ItemTouchHelper.LEFT | ItemTouchHelper.RIGHT) {
@Override
public boolean onMove(RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder, RecyclerView.ViewHolder target) {
return false;
}
@Override
public void onSwiped(RecyclerView.ViewHolder viewHolder, int direction) {
int position = viewHolder.getAdapterPosition();
// Do my stuff
// }
}
@Override
public void onChildDraw(Canvas c, RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder, float dX, float dY, int actionState, boolean isCurrentlyActive) {
Bitmap icon;
if(actionState == ItemTouchHelper.ACTION_STATE_SWIPE){
View itemView = viewHolder.itemView;
float height = (float) itemView.getBottom() - (float) itemView.getTop();
float width …我正在尝试使用 Apache tika 来解析一些文档，但它给了我很多错误和警告。
构建.gradle
dependencies {
...
compile ('org.apache.tika:tika-parsers:1.14'){
exclude group: 'org.json', module: 'json'
exclude group: 'commons-logging', module: 'commons-logging'
exclude group: 'org.apache.httpcomponents', module: 'httpclient'}
...
}
为了让这个问题更容易阅读，我不会在这里粘贴警告（它们是 600+），我会忽略它们，但错误如下：
Error:Uncaught translation error: java.lang.IllegalArgumentException: already added: Lorg/apache/xmlbeans/xml/stream/Location;
Error:Uncaught translation error: java.lang.IllegalArgumentException: already added: Lorg/apache/xmlbeans/xml/stream/ReferenceResolver;
Error:Uncaught translation error: java.lang.IllegalArgumentException: already added: Lorg/apache/xmlbeans/xml/stream/XMLEvent;
Error:Uncaught translation error: java.lang.IllegalArgumentException: already added: Lorg/apache/xmlbeans/xml/stream/XMLInputStream;
Error:Uncaught translation error: java.lang.IllegalArgumentException: already added: Lorg/apache/xmlbeans/xml/stream/XMLName;
Error:Uncaught translation error: java.lang.IllegalArgumentException: already added: Lorg/apache/xmlbeans/xml/stream/XMLStreamException;
Error:Uncaught translation error: java.lang.IllegalArgumentException: already added: Lorg/apache/xmlbeans/xml/stream/utils/NestedThrowable;
Error:Uncaught translation …android ×9
java ×2
admob ×1
apache-tika ×1
bitmap ×1
eslint ×1
firebase ×1
firebase-cli ×1
memory-leaks ×1
node.js ×1