如何在android中传递多个数组来填充列表视图?
我想用图像和图像的上传时间填充ListView。我已经完成了图像,但我不知道如何设置图像上传到ListView的时间。我该怎么做 这就是我现在所拥有的: MainActivity.java如何在android中传递多个数组来填充列表视图?,android,arrays,listview,baseadapter,Android,Arrays,Listview,Baseadapter,我想用图像和图像的上传时间填充ListView。我已经完成了图像,但我不知道如何设置图像上传到ListView的时间。我该怎么做 这就是我现在所拥有的: MainActivity.java ArrayList<String> pathArray; Button pickImage; Uri uri; ListView l; @Override protected void onCreate(Bundle savedInstanceState) { super.onCrea
ArrayList<String> pathArray;
Button pickImage;
Uri uri;
ListView l;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
pathArray = new ArrayList<>();
pickImage = (Button) findViewById(R.id.buttonPick);
pickImage.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent pickup = new Intent();
pickup.setType("image/*");
pickup.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(Intent.createChooser(pickup, "Select Image"), 5);
}
});
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if(requestCode == 5) {
try{
uri = data.getData();
pathArray.add(uri.toString());
l.setAdapter(new MyCustomAdapter(this, pathArray));
}
catch (NullPointerException ex){
ex.printStackTrace();
}
}
}
ArrayList路径数组;
按钮图像;
Uri;
列表视图l;
@凌驾
创建时受保护的void(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
pathArray=newArrayList();
pickImage=(按钮)findViewById(R.id.buttonPick);
pickImage.setOnClickListener(新视图.OnClickListener(){
@凌驾
公共void onClick(视图v){
意图拾取=新意图();
pickup.setType(“image/*”);
拾取.setAction(意图.ACTION\u获取内容);
startActivityForResult(Intent.createChooser(拾取,“选择图像”),5);
}
});
}
@凌驾
受保护的void onActivityResult(int请求代码、int结果代码、意图数据){
super.onActivityResult(请求代码、结果代码、数据);
if(requestCode==5){
试一试{
uri=data.getData();
add(uri.toString());
l、 setAdapter(新的MyCustomAdapter(这个,pathArray));
}
捕获(NullPointerException ex){
例如printStackTrace();
}
}
}
MyCustomAdapter.java
public class MyCustomAdapter extends BaseAdapter {
ArrayList<String> result;
Context context;
private static LayoutInflater inflater = null;
public MyCustomAdapter(MainActivity mainActivity, ArrayList<String> imageNameList) {
context = mainActivity;
result = imageNameList;
inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
@Override
public int getCount() {
return result.size();
}
@Override
public Object getItem(int position) {
return position;
}
@Override
public long getItemId(int position) {
return position;
}
public class Holder{
private TextView textViewTime;
ImageView listViewImage;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
Holder holder;
if (convertView == null) {
holder = new Holder();
convertView = inflater.inflate(R.layout.listview_layout, null);
holder.textViewTime = (TextView) convertView.findViewById(R.id.textTime);
holder.listViewImage = (ImageView) convertView.findViewById(R.id.listViewImage);
convertView.setTag(holder);
}
else{
holder = (Holder) convertView.getTag();
}
String path=result.get(position);
/* Time today = new Time(Time.getCurrentTimezone());
today.setToNow();
int day = today.monthDay;
int month = today.month + 1;
int year = today.year; */
holder.listViewImage.setImageURI(Uri.parse(path));
return convertView;
}
}
公共类MyCustomAdapter扩展了BaseAdapter{
阵列列表结果;
语境;
专用静态充气机=空;
公共MyCustomAdapter(MainActivity MainActivity,ArrayList imageNameList){
上下文=主要活动;
结果=图像名称列表;
充气器=(LayoutFlater)context.getSystemService(context.LAYOUT\u充气器\u服务);
}
@凌驾
public int getCount(){
返回result.size();
}
@凌驾
公共对象getItem(int位置){
返回位置;
}
@凌驾
公共长getItemId(int位置){
返回位置;
}
公共类持有者{
私有文本视图文本视图时间;
图像视图列表视图图像;
}
@凌驾
公共视图getView(int位置、视图转换视图、视图组父视图){
持有人;
if(convertView==null){
保持架=新保持架();
convertView=充气机。充气(R.layout.listview\U布局,空);
holder.textViewTime=(TextView)convertView.findViewById(R.id.textTime);
holder.listViewImage=(ImageView)convertView.findViewById(R.id.listViewImage);
convertView.setTag(支架);
}
否则{
holder=(holder)convertView.getTag();
}
字符串路径=result.get(位置);
/*今日时间=新时间(Time.getCurrentTimezone());
今天;
int day=今天。月日;
整月=今天。月+1;
int year=今天。年*/
holder.listViewImage.setImageURI(Uri.parse(path));
返回视图;
}
}
请帮帮我
thanx.您应该将图像路径和上载时间包装为对象,如ImageRow,并将
pathArray
更改为List
,成功上载图像后,将其替换为onActivityResult()
:
与
然后更改您的
MyCustomAdapter
类以接收List
作为第二个参数,并从中获取数据以设置imageview和time textview。您应该将图像路径和上载时间包装为对象,如ImageRow,并将pathArray
更改为List
,当您成功上载图像时,将此替换为onActivityResult()中的:
与
然后更改MyCustomAdapter
类以接收List
作为第二个参数,并从中获取数据以设置imageview和time textview
uri = data.getData();
pathArray.add(uri.toString());
uri = data.getData();
pathArray.add(new ImageRow(uri.toString(),System.currentTimeMills()));