我正在制作ToDo列表应用程序,并且在测试时,出于某种原因,每当我尝试向下滚动时,项目之间会形成巨大的差距.每当我拖放项目时总会发生这种情况,但我没有看到我的ItemTouchHelper适配器和回调类有任何错误.如果你可以帮助我,那将是非常棒的.
之前:

后:

RecyclerAdapter.java
public class RecyclerAdapter extends
RecyclerView.Adapter<RecyclerAdapter.RecyclerVH> implements ItemTouchHelperAdapter{
private LayoutInflater layoutInflater;
ArrayList<Info> data;
Context context;
public RecyclerAdapter(Context context) {
layoutInflater = LayoutInflater.from(context);
this.context = context;
}
public void setData(ArrayList<Info> data) {
this.data = data;
notifyDataSetChanged();
}
@Override
public RecyclerVH onCreateViewHolder(ViewGroup viewGroup, int position) {
View view = layoutInflater.inflate(R.layout.custom_row, viewGroup, false);
view.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Log.d("R.A onClick Owen", "onClick method triggered");
}
});
RecyclerVH recyclerVH = new RecyclerVH(view);
return recyclerVH;
}
@Override
public …Run Code Online (Sandbox Code Playgroud) 在看了Material Design中的新方法之后,我尝试在应用程序中实现一个浮动操作按钮.但是,我在预览中遇到此错误(预览Android版本21):
The following classes could not be instantiated:
- android.support.design.widget.FloatingActionButton
(First paragraph of error)
java.lang.NullPointerException
at android.support.v4.graphics.drawable.DrawableCompatLollipop.setTintList(DrawableCompatLollipop.java:56)
at android.support.v4.graphics.drawable.DrawableCompat$LollipopDrawableImpl.setTintList(DrawableCompat.java:145)
at android.support.v4.graphics.drawable.DrawableCompat.setTintList(DrawableCompat.java:270)
etc...
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任何人都有任何想法?这是我的build.gradle:
android {
compileSdkVersion 22
buildToolsVersion "22.0.1"
classpath 'com.android.tools.build:gradle:1.2.3'
defaultConfig {
applicationId "owensetiawan.tutorials.fab"
minSdkVersion 15
targetSdkVersion 22
versionCode 1
versionName "1.0"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.android.support:appcompat-v7:22.2.0'
compile 'com.android.support:design:22.2.0'
}
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如果有人可以帮助我解决我的问题,那绝对是太棒了.
我在我的RecyclerView中实现了ItemDecoration以及在加载RV时播放的动画.但是,我注意到装饰在动画完成之前已经出现在界限处,我想让装饰同时移动到动画中.我该怎么做?
到目前为止,我一直在进入动画:
@Override
public void onBindViewHolder(final RecyclerVH recyclerVH, final int position) {
currentNote = data.get(position);
final String currentTitle = currentNote.getTitle();
final String currentContent = currentNote.getContent();
final int currentPosition = currentNote.getPosition();
String currentAlarmDate = currentNote.getAlarm();
Log.d("RecyclerView", "onBindVH called: " + currentTitle);
Log.d("RecyclerView", "Position at: " + currentPosition + " and Adapter Position at: " + recyclerVH.getAdapterPosition());
// final Info currentObject = data.get(position);
// Current Info object retrieved for current RecyclerView item - USED FOR DELETE
recyclerVH.listTitle.setText(currentTitle);
recyclerVH.listContent.setText(currentContent);
Log.d("RecyclerAdapter", "currentAlarmDate is: '" …Run Code Online (Sandbox Code Playgroud) 所以我试图Drag-and-Drop在我的待办事项列表应用程序中实现,但是我在保存移动后的行顺序时遇到了麻烦 - 即我移动了项目,退出了应用程序,然后它恢复到原来的位置。我想到了一个解决办法。
我的解决方案:
在我的表中创建一列:specification_position。每次移动一行时,该onItemMove()方法都会返回 afromPosition和toPosition。将行的位置移动到toPosition,然后增加/更新那里和上面的所有值。每次读取表格时,它都会检查头寸并根据它对它们进行排序。
我的问题:
我的解决方案是否正确?有没有更好,更简单的方法来代替这样做?非常感谢!
我们的想法是创建一个应用程序,可以在iOS中的另一个应用程序的后台连续发送"在坐标(x,y)"事件中点击屏幕.想想'Cookie Clicker'作弊.我目前正在他的应用程序中帮助我的朋友,我的工作是尝试尽可能地将其排除在外.我有一种轻微的感觉,即尽可能多地敲击他的一个按钮会使他的应用程序出错,这就是为什么我在这里.
该方法使用KIF以及iOS中的后台执行来实现此目的.
在其中一个类中,文件KIFUITestActor.m具有以下代码:
- (void)tapScreenAtPoint:(CGPoint)screenPoint
{
[self runBlock:^KIFTestStepResult(NSError **error) {
// Try all the windows until we get one back that actually has something in it at the given point
UIView *view = nil;
for (UIWindow *window in [[[UIApplication sharedApplication] windowsWithKeyWindow] reverseObjectEnumerator]) {
CGPoint windowPoint = [window convertPoint:screenPoint fromView:nil];
view = [window hitTest:windowPoint withEvent:nil];
// If we hit the window itself, then skip it.
if (view != window && view != nil) {
break;
}
}
KIFTestWaitCondition(view, error, @"No …Run Code Online (Sandbox Code Playgroud)