嗯,我不知道问题的正确名称应该是什么,但我的问题非常惊人,不知道是不是可能。这是我的问题
我有一系列图像,我想在ListView中设置它们。以下是ListView行Xml。(名为anim_list_row)
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal" android:layout_width="match_parent"
android:layout_height="match_parent"
android:weightSum="100"
>
<ImageView
android:layout_width="0dp"
android:layout_height="350dp"
android:scaleType="fitXY"
android:id="@+id/iv_dummy_left"
android:layout_marginLeft="5dp"
android:layout_weight="50"/>
<ImageView
android:layout_width="0dp"
android:layout_height="350dp"
android:scaleType="fitXY"
android:id="@+id/iv_dummy_right"
android:layout_weight="50"
android:layout_marginRight="5dp"/>
</LinearLayout>
在这里你可以看到我想在两个不同的左右ImageView中设置2个不同的图像。以下是我的适配器类
public class MListAdapter extends BaseAdapter {
private Context context;
private ArrayList<AnimListItems> mAnimListItems;
public MListAdapter(Context context, ArrayList<AnimListItems> mAnimListItems){
this.context = context;
this.mAnimListItems = mAnimListItems;
}
@Override
public int getCount() {
return mAnimListItems.size();
}
@Override
public Object getItem(int position) {
return navDrawerItems.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
if (convertView == null) {
LayoutInflater mInflater = (LayoutInflater)
context.getSystemService(Activity.LAYOUT_INFLATER_SERVICE);
convertView = mInflater.inflate(R.layout.anim_list_row, null);
}
ImageView imgIconLeft = (ImageView) convertView.findViewById(R.id.iv_dummy_left);
ImageView imgIconRight = (ImageView) convertView.findViewById(R.id.iv_dummy_right);
//TextView txtTitle = (TextView) convertView.findViewById(R.id.title);
imgIconLeft.setImageResource(navDrawerItems.get(position).getIcon());
//if I do not do +1 here it sets same image to both left and right ImageView
imgIconRight.setImageResource(navDrawerItems.get(position+1).getIcon());
// txtTitle.setText(navDrawerItems.get(position).getTitle());
return convertView;
}
}
所以这里有一个问题,这个列表视图正在工作,但它正在为行中的两个ImageView分配相同的图像。如果我按以下方式+1:
imgIconRight.setImageResource(navDrawerItems.get(位置+ 1).getIcon())
然后它有助于更改行中右侧的图像视图,但第二行在其第一个图像视图中重复图像(我的意思是第二行的左侧ImageView中的图像与右侧ImageView中的图像相同)第一行。)
那么什么是
的解决方案答案 0 :(得分:1)
尝试使用两个不同的阵列/ arraylist分别存储左侧和右侧图像。 settag为l +左图像的位置 settag为右图像的r +位置 您可以通过
识别点击的图像 imgIconLeft.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
if(v.getTag.toString().contains("l"){
// then it's a left button.
String position=v.getTag.toString().subString(1,v.getTag.toString().length()-1);
// to get position
}
});
答案 1 :(得分:1)
你好如果你想使用一个单一阵列,那么我已经为你的问题快速制作了一个演示示例,我想它会对你有帮助。
<强> MainActivity.java 强>
public class MainActivity extends ActionBarActivity {
Item item;
ArrayList<Object> obj = new ArrayList<Object>();
MListAdapter adapter;
ListView lv;
int[] arrEnabledImageIds = new int[] { R.drawable.ic_launcher,
R.drawable.ic_delete_icon, R.drawable.ic_delete_icon,
R.drawable.ic_launcher, R.drawable.ic_delete_icon,
R.drawable.ic_launcher };
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
lv = (ListView) findViewById(R.id.listView1);
for (int i = 0; i < arrEnabledImageIds.length; i++) {
Item itemInfo = new Item();
itemInfo.image1 = arrEnabledImageIds[i];
i++;
itemInfo.image2 = arrEnabledImageIds[i];
obj.add(itemInfo);
}
adapter = new MListAdapter(this, R.layout.row, obj);
lv.setAdapter(adapter);
}
}
<强> activity_main.xml中强>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
>
<ListView
android:id="@+id/listView1"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
</ListView>
</LinearLayout>
<强> Item.java 强>
public class Item implements Serializable {
public static final long serialVersionUID = 1L;
public int image1;
public int image2;
}
<强> row.xml 强>
<?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="horizontal" >
<ImageView
android:id="@+id/ivLeft"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/ic_launcher" />
<ImageView
android:id="@+id/ivRight"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/ic_launcher" />
</LinearLayout>
<强> MListAdapter.java 强>
public class MListAdapter extends ArrayAdapter<Object> {
private Context context;
int resId;
private ArrayList<Object> mAnimListItems;
public MListAdapter(Context context, int textViewResourceId,
ArrayList<Object> mAnimListItems) {
super(context, textViewResourceId, mAnimListItems);
this.resId = textViewResourceId;
this.context = context;
this.mAnimListItems = mAnimListItems;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
if (convertView == null) {
LayoutInflater mInflater = (LayoutInflater) context
.getSystemService(Activity.LAYOUT_INFLATER_SERVICE);
convertView = mInflater.inflate(resId, null);
}
ImageView imgIconLeft = (ImageView) convertView
.findViewById(R.id.ivLeft);
ImageView imgIconRight = (ImageView) convertView
.findViewById(R.id.ivRight);
// TextView txtTitle = (TextView) convertView.findViewById(R.id.title);
Item item = (Item) mAnimListItems.get(position);
imgIconLeft.setImageResource(item.image1);
// if I do not do +1 here it sets same image to both left and right
// ImageView
imgIconRight.setImageResource(item.image2);
// txtTitle.setText(navDrawerItems.get(position).getTitle());
return convertView;
}
}