是否有可能使ListView水平?我使用图库视图完成了此操作，但所选项目会自动出现在屏幕的中心。我不希望选中的项目位于我点击的同一位置。我该如何纠正这个问题?我的想法是用水平滚动来设置ListView。分享你的想法?
当前回答
注意:Android现在支持使用RecyclerView的水平列表视图，所以现在这个答案是不赞成的，关于RecyclerView的信息: https://developer.android.com/reference/android/support/v7/widget/RecyclerView
我已经开发了一个逻辑来做到这一点，而不使用任何外部水平滚动视图库，这是我实现的水平视图，我已经在这里发布了我的答案:https://stackoverflow.com/a/33301582/5479863
我的json响应是这样的:
{"searchInfo":{"status":"1","message":"Success","clist":[{"id":"1de57434-795e-49ac-0ca3-5614dacecbd4","name":"Theater","image_url":"http://52.25.198.71/miisecretory/category_images/movie.png"},{"id":"62fe1c92-2192-2ebb-7e92-5614dacad69b","name":"CNG","image_url":"http://52.25.198.71/miisecretory/category_images/cng.png"},{"id":"8060094c-df4f-5290-7983-5614dad31677","name":"Wine-shop","image_url":"http://52.25.198.71/miisecretory/category_images/beer.png"},{"id":"888a90c4-a6b0-c2e2-6b3c-561788e973f6","name":"Chemist","image_url":"http://52.25.198.71/miisecretory/category_images/chemist.png"},{"id":"a39b4ec1-943f-b800-a671-561789a57871","name":"Food","image_url":"http://52.25.198.71/miisecretory/category_images/food.png"},{"id":"c644cc53-2fce-8cbe-0715-5614da9c765f","name":"College","image_url":"http://52.25.198.71/miisecretory/category_images/college.png"},{"id":"c71e8757-072b-1bf4-5b25-5614d980ef15","name":"Hospital","image_url":"http://52.25.198.71/miisecretory/category_images/hospital.png"},{"id":"db835491-d1d2-5467-a1a1-5614d9963c94","name":"Petrol-Pumps","image_url":"http://52.25.198.71/miisecretory/category_images/petrol.png"},{"id":"f13100ca-4052-c0f4-863a-5614d9631afb","name":"ATM","image_url":"http://52.25.198.71/miisecretory/category_images/atm.png"}]}}
布局文件:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:weightSum="5">
<fragment
android:id="@+id/map"
android:name="com.google.android.gms.maps.SupportMapFragment"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="4" />
<HorizontalScrollView
android:id="@+id/horizontalScroll"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1">
<LinearLayout
android:id="@+id/ll"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
android:orientation="horizontal">
</LinearLayout>
</HorizontalScrollView>
</LinearLayout>
类文件:
LinearLayout linearLayout = (LinearLayout) findViewById(R.id.ll);
for (int v = 0; v < collectionInfo.size(); v++) {
/*---------------Creating frame layout----------------------*/
FrameLayout frameLayout = new FrameLayout(ActivityMap.this);
LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(FrameLayout.LayoutParams.WRAP_CONTENT, getPixelsToDP(90));
layoutParams.rightMargin = getPixelsToDP(10);
frameLayout.setLayoutParams(layoutParams);
/*--------------end of frame layout----------------------------*/
/*---------------Creating image view----------------------*/
final ImageView imgView = new ImageView(ActivityMap.this); //create imageview dynamically
LinearLayout.LayoutParams lpImage = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
imgView.setImageBitmap(collectionInfo.get(v).getCatImage());
imgView.setLayoutParams(lpImage);
// setting ID to retrieve at later time (same as its position)
imgView.setId(v);
imgView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// getting id which is same as its position
Log.i(TAG, "Clicked on " + collectionInfo.get(v.getId()).getCatName());
// getting selected category's data list
new GetSelectedCategoryData().execute(collectionInfo.get(v.getId()).getCatID());
}
});
/*--------------end of image view----------------------------*/
/*---------------Creating Text view----------------------*/
TextView textView = new TextView(ActivityMap.this);//create textview dynamically
textView.setText(collectionInfo.get(v).getCatName());
FrameLayout.LayoutParams lpText = new FrameLayout.LayoutParams(FrameLayout.LayoutParams.WRAP_CONTENT, FrameLayout.LayoutParams.WRAP_CONTENT, Gravity.BOTTOM | Gravity.CENTER);
// Note: LinearLayout.LayoutParams 's gravity was not working so I putted Framelayout as 3 paramater is gravity itself
textView.setTextColor(Color.parseColor("#43A047"));
textView.setLayoutParams(lpText);
/*--------------end of Text view----------------------------*/
//Adding views at appropriate places
frameLayout.addView(imgView);
frameLayout.addView(textView);
linearLayout.addView(frameLayout);
}
private int getPixelsToDP(int dp) {
float scale = getResources().getDisplayMetrics().density;
int pixels = (int) (dp * scale + 0.5f);
return pixels;
}
在这里工作的技巧是我分配给ImageView的id“imgView.setId(v)”，之后应用onClickListener，我再次获取视图的id ....为了便于理解，我还在代码中添加了注释， 我希望这对你很有用… 快乐的编码…：）
其他回答
从这里下载jar文件
现在把它放到你的libs文件夹中，右键点击它并选择“添加为库”
现在在main.xml中放入这段代码
<com.devsmart.android.ui.HorizontalListView
android:id="@+id/hlistview"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
/>
现在在Activity类中，如果你想要带有图像的水平列表视图，那么就把这段代码放进去
HorizontalListView hListView = (HorizontalListView) findViewById(R.id.hlistview);
hListView.setAdapter(new HAdapter(this));
private class HAdapter extends BaseAdapter {
LayoutInflater inflater;
public HAdapter(Context context) {
inflater = LayoutInflater.from(context);
}
@Override
public int getCount() {
// TODO Auto-generated method stub
return Const.template.length;
}
@Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return position;
}
@Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
HViewHolder holder;
if (convertView == null) {
convertView = inflater.inflate(R.layout.listinflate, null);
holder = new HViewHolder();
convertView.setTag(holder);
} else {
holder = (HViewHolder) convertView.getTag();
}
holder.img = (ImageView) convertView.findViewById(R.id.image);
holder.img.setImageResource(Const.template[position]);
return convertView;
}
}
class HViewHolder {
ImageView img;
}
这不是一个很好的答案，但是如何使用水平滚动视图呢?
这有点(非常)晚了，但我把它贴出来，以防以后有人来看。
在Android L预览版的支持库中，有一个RecyclerView，它完全是你想要的。
现在，你只能通过L预览SDK获得它，你需要将你的minSdk设置为L。但是你可以将所有必要的文件复制到你的项目中，并以这种方式使用它们，直到L正式发布。
你可以在这里下载预览文档。
警告:回收器视图的API可能会改变，它可能有bug。
更新
水平列表视图的源代码是:
LinearLayoutManager layoutManager
= new LinearLayoutManager(this, LinearLayoutManager.HORIZONTAL, false);
RecyclerView myList = findViewById(R.id.my_recycler_view);
myList.setLayoutManager(layoutManager);
有一个很棒的库，叫做TwoWayView，它很容易实现，只需要将项目库包含到你的工作空间中，并将其作为库项目添加到你的原始项目中，然后遵循以下步骤，这是最初在这里提到的:
首先，让我们添加一个样式来指示ListView的方向 (水平或垂直)in (res/values/styles.xml):
<style name="TwoWayView">
<item name="android:orientation">horizontal</item>
</style>
然后,
在你的布局XML中，使用下面的代码来添加TwoWayView:
<org.lucasr.twowayview.TwoWayView
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/lvItems"
style="@style/TwoWayView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:drawSelectorOnTop="false"
tools:context=".MainActivity" />
最后，声明它并像任何常规的ListView一样处理它:
TwoWayView lvTest = (TwoWayView) findViewById(R.id.lvItems);
ListView的所有方法将在这里照常工作，但只有一个区别，我注意到，这是设置选择模式时，方法setChoiceMode不接受int值，而是从enum称为ChoiceMode的值，所以list_view.setChoiceMode(ListView. choice_mode_single);将lvTest.setChoiceMode(choicmode . single);//或多重或无。
注意:Android现在支持使用RecyclerView的水平列表视图，所以现在这个答案是不赞成的，关于RecyclerView的信息: https://developer.android.com/reference/android/support/v7/widget/RecyclerView
我已经开发了一个逻辑来做到这一点，而不使用任何外部水平滚动视图库，这是我实现的水平视图，我已经在这里发布了我的答案:https://stackoverflow.com/a/33301582/5479863
我的json响应是这样的:
{"searchInfo":{"status":"1","message":"Success","clist":[{"id":"1de57434-795e-49ac-0ca3-5614dacecbd4","name":"Theater","image_url":"http://52.25.198.71/miisecretory/category_images/movie.png"},{"id":"62fe1c92-2192-2ebb-7e92-5614dacad69b","name":"CNG","image_url":"http://52.25.198.71/miisecretory/category_images/cng.png"},{"id":"8060094c-df4f-5290-7983-5614dad31677","name":"Wine-shop","image_url":"http://52.25.198.71/miisecretory/category_images/beer.png"},{"id":"888a90c4-a6b0-c2e2-6b3c-561788e973f6","name":"Chemist","image_url":"http://52.25.198.71/miisecretory/category_images/chemist.png"},{"id":"a39b4ec1-943f-b800-a671-561789a57871","name":"Food","image_url":"http://52.25.198.71/miisecretory/category_images/food.png"},{"id":"c644cc53-2fce-8cbe-0715-5614da9c765f","name":"College","image_url":"http://52.25.198.71/miisecretory/category_images/college.png"},{"id":"c71e8757-072b-1bf4-5b25-5614d980ef15","name":"Hospital","image_url":"http://52.25.198.71/miisecretory/category_images/hospital.png"},{"id":"db835491-d1d2-5467-a1a1-5614d9963c94","name":"Petrol-Pumps","image_url":"http://52.25.198.71/miisecretory/category_images/petrol.png"},{"id":"f13100ca-4052-c0f4-863a-5614d9631afb","name":"ATM","image_url":"http://52.25.198.71/miisecretory/category_images/atm.png"}]}}
布局文件:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:weightSum="5">
<fragment
android:id="@+id/map"
android:name="com.google.android.gms.maps.SupportMapFragment"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="4" />
<HorizontalScrollView
android:id="@+id/horizontalScroll"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1">
<LinearLayout
android:id="@+id/ll"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
android:orientation="horizontal">
</LinearLayout>
</HorizontalScrollView>
</LinearLayout>
类文件:
LinearLayout linearLayout = (LinearLayout) findViewById(R.id.ll);
for (int v = 0; v < collectionInfo.size(); v++) {
/*---------------Creating frame layout----------------------*/
FrameLayout frameLayout = new FrameLayout(ActivityMap.this);
LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(FrameLayout.LayoutParams.WRAP_CONTENT, getPixelsToDP(90));
layoutParams.rightMargin = getPixelsToDP(10);
frameLayout.setLayoutParams(layoutParams);
/*--------------end of frame layout----------------------------*/
/*---------------Creating image view----------------------*/
final ImageView imgView = new ImageView(ActivityMap.this); //create imageview dynamically
LinearLayout.LayoutParams lpImage = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
imgView.setImageBitmap(collectionInfo.get(v).getCatImage());
imgView.setLayoutParams(lpImage);
// setting ID to retrieve at later time (same as its position)
imgView.setId(v);
imgView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// getting id which is same as its position
Log.i(TAG, "Clicked on " + collectionInfo.get(v.getId()).getCatName());
// getting selected category's data list
new GetSelectedCategoryData().execute(collectionInfo.get(v.getId()).getCatID());
}
});
/*--------------end of image view----------------------------*/
/*---------------Creating Text view----------------------*/
TextView textView = new TextView(ActivityMap.this);//create textview dynamically
textView.setText(collectionInfo.get(v).getCatName());
FrameLayout.LayoutParams lpText = new FrameLayout.LayoutParams(FrameLayout.LayoutParams.WRAP_CONTENT, FrameLayout.LayoutParams.WRAP_CONTENT, Gravity.BOTTOM | Gravity.CENTER);
// Note: LinearLayout.LayoutParams 's gravity was not working so I putted Framelayout as 3 paramater is gravity itself
textView.setTextColor(Color.parseColor("#43A047"));
textView.setLayoutParams(lpText);
/*--------------end of Text view----------------------------*/
//Adding views at appropriate places
frameLayout.addView(imgView);
frameLayout.addView(textView);
linearLayout.addView(frameLayout);
}
private int getPixelsToDP(int dp) {
float scale = getResources().getDisplayMetrics().density;
int pixels = (int) (dp * scale + 0.5f);
return pixels;
}
在这里工作的技巧是我分配给ImageView的id“imgView.setId(v)”，之后应用onClickListener，我再次获取视图的id ....为了便于理解，我还在代码中添加了注释， 我希望这对你很有用… 快乐的编码…：）
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