Android 如何从listview外部的按钮设置listview行内部任何视图的可见性
我有编辑按钮在工具栏上点击这个按钮,我想显示新的视图,这是交叉按钮内的每一行的listview。这可能吗?如果可能,如何实现?提前谢谢。以下是布局文件: 主要布局:Android 如何从listview外部的按钮设置listview行内部任何视图的可见性,android,Android,我有编辑按钮在工具栏上点击这个按钮,我想显示新的视图,这是交叉按钮内的每一行的listview。这可能吗?如果可能,如何实现?提前谢谢。以下是布局文件: 主要布局: <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:orientation="vertical"
android:background="@color/backgroundColor"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:paddingTop="@dimen/activity_vertical_margin"
android:paddingBottom="@dimen/activity_vertical_margin"
android:background="@color/TabColor"
android:weightSum="10"
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<ImageView
android:layout_weight="1"
android:onClick="back2"
android:layout_gravity="center"
app:srcCompat="@drawable/back_arrow"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<TextView
android:layout_weight="7"
android:paddingLeft="@dimen/margin_small"
android:text="List OF Hotels"
android:textSize="@dimen/text_title"
android:textColor="@color/WhiteColor"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<FrameLayout
android:layout_weight="2"
android:background="@drawable/transparent_bg"
android:layout_marginRight="@dimen/margin_large"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<LinearLayout
android:id="@+id/edit_jobs"
android:gravity="center"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TextView
android:layout_marginBottom="@dimen/margin_small"
android:layout_marginTop="@dimen/margin_small"
android:text="Edit"
android:textColor="@color/WhiteColor"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>
<LinearLayout
android:visibility="invisible"
android:id="@+id/done_editing"
android:gravity="center"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TextView
android:layout_marginBottom="@dimen/margin_small"
android:layout_marginTop="@dimen/margin_small"
android:text="Done"
android:textColor="@color/WhiteColor"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>
</FrameLayout>
</LinearLayout>
<ListView
android:id="@+id/listview1"
android:divider="@android:color/transparent"
android:dividerHeight="0dp"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
</LinearLayout>
必须显示交叉图像的listview行布局:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:layout_marginTop="@dimen/margin_large"
android:layout_marginLeft="@dimen/margin_large"
android:layout_marginRight="@dimen/margin_large"
android:background="@drawable/border"
android:padding="@dimen/margin_large"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<LinearLayout
android:weightSum="10"
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TextView
android:text=""
android:layout_gravity="center"
android:layout_weight="9"
android:textColor="@color/TabColor"
android:singleLine="true"
android:textSize="@dimen/text_large"
android:id="@+id/title"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<FrameLayout
android:layout_weight="1"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<ImageView
android:gravity="right"
android:id="@+id/arrow"
android:src="@drawable/rightarrow"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<ImageView
android:visibility="invisible"
android:id="@+id/cross"
android:gravity="right"
android:src="@drawable/cancel"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</FrameLayout>
</LinearLayout>
<LinearLayout
android:orientation="horizontal"
android:weightSum="10"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TextView
android:text=""
android:layout_weight="5"
android:textColor="@color/blackColor"
android:textSize="@dimen/text_medium"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<TextView
android:layout_weight="5"
android:text=""
android:gravity="right"
android:textColor="@color/blackColor"
android:textSize="@dimen/text_medium"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>
</LinearLayout>
</LinearLayout>
适配器类:
public class MyAdapter extends ArrayAdapter<String> {
private final Context context;
private ArrayList<String> titlelist,datalist;
public MyAdapter(Context context, ArrayList<String> title, ArrayList<String> data) {
super(context, R.layout.listview_row, title);
titlelist= new ArrayList<>();
datalist= new ArrayList<>();
this.context=context;
this.titlelist=title;
this.datalist=data;
}
private static class ViewHolder {
TextView t1,t2;
}
@Override
public int getCount() {
return titlelist.size();
}
@Override
public String getItem(int position) {
return titlelist.get(position);
}
@Override
public View getView(final int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if (convertView == null) {
LayoutInflater vi = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = vi.inflate(R.layout.listview_row, null);
holder = new ViewHolder();
holder.t1 = (TextView) convertView.findViewById(R.id.title);
holder.t2 = (TextView) convertView.findViewById(R.id.data);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
holder.t1.setText(titlelist.get(position));
holder.t2.setText(datalist.get(position));
return convertView;
}
}
公共类MyAdapter扩展了ArrayAdapter{
私人最终语境;
私有ArrayList标题列表、数据列表;
公共MyAdapter(上下文上下文、ArrayList标题、ArrayList数据){
super(上下文,R.layout.listview_行,标题);
titlelist=新的ArrayList();
datalist=newarraylist();
this.context=context;
this.titlelist=标题;
this.datalist=数据;
}
私有静态类视图持有者{
文本视图t1、t2;
}
@凌驾
public int getCount(){
返回titlelist.size();
}
@凌驾
公共字符串getItem(int位置){
返回标题列表。获取(位置);
}
@凌驾
公共视图getView(最终整数位置、视图转换视图、视图组父视图){
视窗座;
if(convertView==null){
LayoutInflater vi=(LayoutInflater)context.getSystemService(context.LAYOUT\u INFLATER\u SERVICE);
convertView=vi.充气(R.layout.listview_行,空);
holder=新的ViewHolder();
holder.t1=(TextView)convertView.findViewById(R.id.title);
holder.t2=(TextView)convertView.findViewById(R.id.data);
convertView.setTag(支架);
}否则{
holder=(ViewHolder)convertView.getTag();
}
holder.t1.setText(titlelist.get(position));
holder.t2.setText(datalist.get(position));
返回视图;
}
}
您必须在适配器中添加此功能
@Override
public View getView(int position, View convertView, ViewGroup parent) {
//ur other codes.....
//
//
if(crossButtonPress){
holder.imageView.setImageResource(R.drawable.cross);
}else{
holder.imageView.setImageResource(R.drawable.default_ic);
}
}
此外,在实际按钮的onClick中
crossButtonPress = true;
adapter.notifyDatasetChanged();
显示适配器的代码..我不明白如何将crossButtonPress传递给适配器类?