【发布时间】：2012-01-23 11:33:17
【问题描述】：
您好，我创建了一个完全基于 xml 的项目。我现在怀疑我将所有 xml 值存储在我的数组列表中。数组列表名称是 mspec_List。如何解析这个数组列表值？我使用 sax 解析器获得了所有值。如果我单击该图像，我的第一个活动会显示一些图像，我想在下一个活动屏幕中显示某个段落，该段落存储在我的数组列表中。如何在我的下一个活动中显示该段落？我创建了新类，并且正在使用文本视图，我还希望在该文本视图中显示该数组列表值。请帮帮我....`
我正在尝试解析该 arraylist 值，但它不起作用，请参阅下面的代码。
sdcardImages.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView parent, View v, int position, long id) {
Intent intent = new Intent(ParxmlActivity.this, tabview.class);
intent.putStringArrayListExtra("numbers", mspec_List);
//intent.putExtra("name",model_List.get(position).name);
startActivity(intent);
}
});
完整源代码：
package ml.ml;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
import org.xml.sax.InputSource;
import org.xml.sax.XMLReader;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.content.res.AssetManager;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.drawable.Drawable;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.provider.MediaStore;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.View.OnClickListener;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.Spinner;
import android.widget.TextView;
import android.widget.AdapterView.OnItemClickListener;
public class ParxmlActivity extends Activity {
private String array_spinner[];
private Cursor cursor;
private int columnIndex;
ParsedExampleDataSet parsedExampleDataSet= null;
ArrayList<String> hltag_List=new ArrayList<String>();
ArrayList<Subchild>sltag_List=new ArrayList<Subchild>();
ArrayList<String> name_List =new ArrayList<String>();
ArrayList<String> path_List =new ArrayList<String>();
ArrayList<String> mmimage_List = new ArrayList<String>();
ArrayList<String> mname_List = new ArrayList<String>();
ArrayList<String> mmimage = new ArrayList<String>();
ArrayList<String> mvideo_List = new ArrayList<String>();
ArrayList<schild> model_List =new ArrayList<schild>();
ArrayList<String> mspec_List = new ArrayList<String>();
Spinner spinner_hltag,spinner_sltag, spinner_path;
ArrayAdapter<String> adapter_hltag;
ArrayAdapter<String> adapter_sltag;
ArrayAdapter<String> adapter_path;
int hltagPos=0;
int sltagPos=0;
Object sdcard;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
GridView sdcardImages = (GridView) findViewById(R.id.sdcard);
spinner_hltag= (Spinner) findViewById(R.id.spinner1);
spinner_sltag = (Spinner) findViewById(R.id.spinner2);
sdcardImages.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView parent, View v, int position, long id) {
Intent intent = new Intent(ParxmlActivity.this, tabview.class);
intent.putStringArrayListExtra("numbers", mspec_List);
//intent.putExtra("name",model_List.get(position).name);
startActivity(intent);
}
});
sdcardImages.setAdapter(new ImageAdapter(this));
String[] proj = {MediaStore.Images.Thumbnails._ID};
cursor = managedQuery(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,
proj, null, null, null);
columnIndex = cursor.getColumnIndexOrThrow(MediaStore.Images.Thumbnails._ID);
try {
/* Get a SAXParser from the SAXPArserFactory. */
SAXParserFactory spf = SAXParserFactory.newInstance();
SAXParser sp = spf.newSAXParser();
/* Get the XMLReader of the SAXParser we created. */
XMLReader xr = sp.getXMLReader();
/* Create a new ContentHandler and apply it to the XML-Reader */
ExampleHandler myExampleHandler = new ExampleHandler();
xr.setContentHandler(myExampleHandler);
/* Parse the xml-data from our file. */
xr.parse(new InputSource(getAssets().open("mafile.xml")));
/* Parsing has finished. */
parsedExampleDataSet =myExampleHandler. myParsedExampleDataSet;
for (int i = 0; i < parsedExampleDataSet.gethltag().size(); i++) {
Log.v("gethltag SIZE ", ""+parsedExampleDataSet.gethltag().size());
hltag_List.add(parsedExampleDataSet.getHLTag().get(i));
}
sltag_List = parsedExampleDataSet.getSLTag(hltag_List.get(hltagPos));
for(int i = 0; i < sltag_List.size(); i++) {
name_List.add(sltag_List.get(i).name);
path_List.add(sltag_List.get(i).path);
}
model_List.clear();
model_List = sltag_List.get(sltagPos).model;
for(int j = 0; j<model_List.size(); j++){
mmimage_List.addAll(model_List.get(j).imageList);
mname_List.add(model_List.get(j).name);
mvideo_List.addAll(model_List.get(j).videoList);
mmimage.add(model_List.get(j).mimage);
mspec_List.add(model_List.get(j).spec);
}
spinner_hltag.setAdapter(new MyAdapter(ParxmlActivity.this, R.layout.row, hltag_List));
spinner_sltag.setAdapter(new MyAdapter1(ParxmlActivity.this, R.layout.row1,name_List));
} catch (Exception e) {
}
}
private class ImageAdapter extends BaseAdapter {
private Context mContext;
//ArrayList<String> path_List =new ArrayList<String>();
public ImageAdapter(Context c) {
mContext = c;
}
public int getCount() {
return path_List.size();
}
public Object getItem(int position) {
return null;
}
public long getItemId(int position) {
return 0;
}
public View getView(int position, View convertView, ViewGroup parent) {
ImageView imageView;
if (convertView == null) { // if it's not recycled, initialize some attributes
imageView = new ImageView(mContext);
imageView.setLayoutParams(new GridView.LayoutParams(85, 85));
imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
imageView.setPadding(8, 8, 8, 8);
} else {
imageView = (ImageView) convertView;
}
//Bitmap bitmap = BitmapFactory.decodeFile(path_List);
Bitmap bitmap = BitmapFactory.decodeFile(path_List.get(position));
imageView.setImageBitmap(bitmap);
return imageView;
}
}
public class MyAdapter extends ArrayAdapter<String>{
public MyAdapter(Context context, int textViewResourceId, ArrayList<String> hltagList) {
super(context, textViewResourceId, hltagList);
}
@Override
public View getDropDownView(int position, View convertView,ViewGroup parent) {
return getCustomView(position, convertView, parent);
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
return getCustomView(position, convertView, parent);
}
public View getCustomView(int position, View convertView, ViewGroup parent) {
LayoutInflater inflater=getLayoutInflater();
View row=inflater.inflate(R.layout.row, parent, false);
TextView label=(TextView)row.findViewById(R.id.weekofday);
label.setText(hltag_List.get(position));
ImageView icon=(ImageView)row.findViewById(R.id.icon);
Bitmap bitmap = BitmapFactory.decodeFile(path_List.get(position));;
icon.setImageBitmap(bitmap);
return row;
}
}
public class MyAdapter1 extends ArrayAdapter<String>{
public MyAdapter1(Context context, int textViewResourceId, ArrayList<String> name_List) {
super(context, textViewResourceId, name_List);
}
@Override
public View getDropDownView(int position, View convertView,ViewGroup parent) {
return getCustomView(position, convertView, parent);
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
return getCustomView(position, convertView, parent);
}
public View getCustomView(int position, View convertView, ViewGroup parent) {
LayoutInflater inflater=getLayoutInflater();
View row=inflater.inflate(R.layout.row, parent, false);
TextView sub=(TextView)row.findViewById(R.id.weekofday1);
sub.setText(name_List.get(position));
ImageView icon=(ImageView)row.findViewById(R.id.icon);
Bitmap bitmap = BitmapFactory.decodeFile(path_List.get(position));;
icon.setImageBitmap(bitmap);
return row;
}
}
}
`
【问题讨论】：