我根据Sqlite数据库中的位置存储值
我正在从数据库中检索值，并且值显示正确。但是当我在text-view中显示值时，它变为零。
请帮忙。
这是我的代码：
public class BabyWearAdapter extends BaseAdapter {
ArrayList<String> p_id;
ArrayList<String> p_name;
Context context;
ArrayList<String> imageId;
ArrayList<String> wash_v;
ArrayList<String> dry_v;
ArrayList<String> iron_v;
Typeface tf;
ProgressDialog dialog;
Intent i;
float washItemCount = 0.0f;
String iconName;
Vector<BasketDO> vecBasket = new Vector<BasketDO>();
int countVal1, countVal2, countVal3;
public ImageLoader imageLoader;
int KEY, pid;
String TNAME;
DBHandler dbHandler;
SharedPreferences sharedPreferences;
SharedPreferences.Editor editor;
HashMap<Integer, Integer> launDry = new HashMap<Integer, Integer>();
HashMap<Integer, Integer> stremIron = new HashMap<Integer, Integer>();
HashMap<Integer, Integer> dryCleans = new HashMap<Integer, Integer>();
public static ArrayList<HashMap<Integer, Integer>> mListLaundry = new ArrayList<HashMap<Integer, Integer>>();
public BabyWearAdapter(Context con, ArrayList<String> pid,
ArrayList<String> pname, ArrayList<String> pimg,
ArrayList<String> wash, ArrayList<String> dry,
ArrayList<String> iron) {
p_id = pid;
context = con;
p_name = pname;
imageId = pimg;
wash_v = wash;
dry_v = dry;
iron_v = iron;
imageLoader = new ImageLoader(context);
sharedPreferences = context.getSharedPreferences("prefName",
context.MODE_APPEND);
editor = sharedPreferences.edit();
}
@Override
public int getCount() {
return imageId.size();
}
@Override
public Object getItem(int position) {
return position;
}
@Override
public long getItemId(int position) {
return position;
}
@SuppressLint({ "UseValueOf", "ViewHolder" })
@Override
public View getView(final int position, View convertView, ViewGroup parent) {
LayoutInflater inflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = inflater.inflate(R.layout.dynamic, parent, false);
final LinearLayout ll1 = (LinearLayout) convertView
.findViewById(R.id.ll1);
final LinearLayout ll2 = (LinearLayout) convertView
.findViewById(R.id.ll2);
final LinearLayout ll3 = (LinearLayout) convertView
.findViewById(R.id.ll3);
final TextView tv1 = (TextView) convertView.findViewById(R.id.tv1);
final TextView tv2 = (TextView) convertView.findViewById(R.id.tv3);
final TextView tv3 = (TextView) convertView.findViewById(R.id.tv5);
final ImageView img = (ImageView) convertView
.findViewById(R.id.ivImage);
tv1.setText(wash_v.get(position));
tv2.setText(iron_v.get(position));
tv3.setText(dry_v.get(position));
imageLoader.DisplayImage(imageId.get(position), img);
dbHandler = new DBHandler(context);
int pid = Integer.parseInt(p_id.get(position));
SQLiteDatabase db = null;
db = dbHandler.getReadableDatabase();
i = new Intent("com.example.safewash");
final TextView tvVal = (TextView) convertView.findViewById(R.id.tvVal);
final TextView tvVal1 = (TextView) convertView
.findViewById(R.id.tvVal1);
final TextView tvVal2 = (TextView) convertView
.findViewById(R.id.tvVal2);
ll1.setTag(p_id.get(position));
ll2.setTag(p_id.get(position));
ll3.setTag(p_id.get(position));
Cursor c = db.rawQuery("select * from babywear_tbl where pid =" + pid,
null);
if (c.moveToFirst()) {
String countVal1 = c.getString(c.getColumnIndex("laundry_item"));
String countVal2 = c.getString(c.getColumnIndex("dry_item"));
String countVal3 = c.getString(c.getColumnIndex("iron_item"));
final int count1 =Integer.parseInt(countVal1);
final int count2 =Integer.parseInt(countVal2);
final int count3 =Integer.parseInt(countVal3);
tvVal.setText("" + count1);
tvVal.setVisibility(View.VISIBLE);
System.out.println("The Value one is "+countVal1);
Log.i("Count Val One",""+countVal1);
}
try {
int temp = launDry.get(Integer.parseInt(ll1.getTag().toString()
.trim()));
int val = temp + 1;
tvVal.setText("" + val);
tvVal.setVisibility(View.VISIBLE);
} catch (Exception e) {
tvVal.setText("0");
}
try {
int temp = stremIron.get(Integer.parseInt(ll2.getTag().toString()
.trim()));
int val = temp + 1;
tvVal1.setText("" + val);
tvVal1.setVisibility(View.VISIBLE);
} catch (Exception e) {
tvVal1.setText("0");
}
try {
int temp = dryCleans.get(Integer.parseInt(ll1.getTag().toString()
.trim()));
int val = temp + 1;
tvVal2.setText("" + val);
tvVal2.setVisibility(View.VISIBLE);
} catch (Exception e) {
tvVal2.setText("0");
}
ll1.setOnClickListener(new OnClickListener() {
@SuppressLint("NewApi")
@Override
public void onClick(final View v) {
int count = 0;
String washItem = wash_v.get(position);
int washItems = Integer.parseInt(washItem);
if (washItems != 0) {
int colorStart = Color.LTGRAY;
int colorEnd = 0;
ValueAnimator animator = ObjectAnimator.ofInt(v,
"backgroundColor", colorStart, colorEnd);
animator.setDuration(800);
animator.setEvaluator(new ArgbEvaluator());
animator.setRepeatCount(0);
animator.start();
washItemCount = Float.parseFloat(washItem);
tvVal.setVisibility(View.VISIBLE);
count = Integer.parseInt(tvVal.getText().toString());
countVal1 = ++count;
i.putExtra("washItemCount", washItemCount);
i.putExtra("countVal1", countVal1);
context.sendBroadcast(i);
try {
int temp = launDry.get(Integer.parseInt(ll1.getTag()
.toString().trim()));
temp++;
launDry.put(Integer.parseInt(ll1.getTag().toString()
.trim()), temp);
long id = dbHandler.insertBabyWearValues(Integer
.parseInt(ll1.getTag().toString().trim()),
countVal1, countVal2, countVal3);
if (id == -1) {
long updateid = dbHandler.updateBabyWear(countVal1,
countVal2, countVal3);
Toast.makeText(context, "ID value" + updateid,
Toast.LENGTH_SHORT).show();
}
Toast.makeText(context, "ID value" + id,
Toast.LENGTH_SHORT).show();
Appconstants.laundryHashmap = launDry;
int val = temp + 1;
tvVal.setText("" + val);
} catch (Exception e) {
launDry.put(Integer.parseInt(ll1.getTag().toString()
.trim()), 0);
tvVal.setText("" + 1);
e.printStackTrace();
}
}
}
});
ll2.setOnClickListener(new OnClickListener() {
@SuppressLint("NewApi")
@Override
public void onClick(final View v) {
int count = 0;
String washItem = iron_v.get(position);
washItemCount = Float.parseFloat(washItem);
int washItems = Integer.parseInt(washItem);
if (washItems != 0) {
int colorStart = Color.LTGRAY;
int colorEnd = 0;
ValueAnimator animator = ObjectAnimator.ofInt(v,
"backgroundColor", colorStart, colorEnd);
animator.setDuration(800);
animator.setEvaluator(new ArgbEvaluator());
animator.setRepeatCount(0);
animator.start();
washItemCount = Float.parseFloat(washItem);
tvVal1.setVisibility(View.VISIBLE);
count = Integer.parseInt(tvVal1.getText().toString());
countVal2 = ++count;
// tvVal1.setText("" + countVal2);
i.putExtra("washItemCount", washItemCount);
i.putExtra("countVal2", countVal2);
context.sendBroadcast(i);
try {
int temp = stremIron.get(Integer.parseInt(ll2.getTag()
.toString().trim()));
temp++;
stremIron.put(Integer.parseInt(ll2.getTag().toString()
.trim()), temp);
long id = dbHandler.insertBabyWearValues(Integer
.parseInt(ll2.getTag().toString().trim()),
countVal1, countVal2, countVal3);
Toast.makeText(context, "ID value" + id,
Toast.LENGTH_SHORT).show();
if (id == -1) {
long updateid = dbHandler.updateBabyWear(countVal1,
countVal2, countVal3);
Toast.makeText(context, "ID value" + updateid,
Toast.LENGTH_SHORT).show();
}
Appconstants.ironHashmap = stremIron;
int val = temp + 1;
tvVal1.setText("" + val);
} catch (Exception e) {
stremIron.put(Integer.parseInt(ll2.getTag().toString()
.trim()), 0);
tvVal1.setText("" + 1);
e.printStackTrace();
}
}
}
});
ll3.setOnClickListener(new OnClickListener() {
@SuppressLint("NewApi")
@Override
public void onClick(final View v) {
int count = 0;
String washItem = dry_v.get(position);
washItemCount = Float.parseFloat(washItem);
int washItems = Integer.parseInt(washItem);
if (washItems != 0) {
int colorStart = Color.LTGRAY;
int colorEnd = 0;
ValueAnimator animator = ObjectAnimator.ofInt(v,
"backgroundColor", colorStart, colorEnd);
animator.setDuration(800);
animator.setEvaluator(new ArgbEvaluator());
animator.setRepeatCount(0);
animator.start();
washItemCount = Float.parseFloat(washItem);
tvVal2.setVisibility(View.VISIBLE);
count = Integer.parseInt(tvVal2.getText().toString());
countVal3 = ++count;
// tvVal2.setText("" + countVal3);
i.putExtra("washItemCount", washItemCount);
i.putExtra("countVal3", countVal3);
context.sendBroadcast(i);
try {
int temp = dryCleans.get(Integer.parseInt(ll3.getTag()
.toString().trim()));
temp++;
dryCleans.put(Integer.parseInt(ll3.getTag().toString()
.trim()), temp);
long id = dbHandler.insertBabyWearValues(Integer
.parseInt(ll3.getTag().toString().trim()),
countVal1, countVal2, countVal3);
Toast.makeText(context, "ID value" + id,
Toast.LENGTH_SHORT).show();
if (id == -1) {
long updateid = dbHandler.updateBabyWear(countVal1,
countVal2, countVal3);
Toast.makeText(context, "ID value" + updateid,
Toast.LENGTH_SHORT).show();
}
Appconstants.dryCleanHashmap = dryCleans;
int val = temp + 1;
tvVal2.setText("" + val);
} catch (Exception e) {
dryCleans.put(Integer.parseInt(ll3.getTag().toString()
.trim()), 0);
tvVal2.setText("" + 1);
e.printStackTrace();
}
}
}
});
return convertView;
}
}
关键是我写了这个逻辑适配器，即getView（）。
答案 0 :(得分：0)
这可能是因为您的值可能是十进制的，在将其解析为整数时，如果数字小于1，则转换为0，即0.88等
从
更改您的代码String countVal1 = c.getString(c.getColumnIndex("laundry_item"));
String countVal2 = c.getString(c.getColumnIndex("dry_item"));
String countVal3 = c.getString(c.getColumnIndex("iron_item"));
int count2 =Integer.parseInt(countVal2);
int count3 =Integer.parseInt(countVal3);
int count1 =Integer.parseInt(countVal1);
tvVal.setText("" + count1);
tvVal.setVisibility(View.VISIBLE);
更改了代码
String countVal1 = c.getString(c.getColumnIndex("laundry_item"));
String countVal2 = c.getString(c.getColumnIndex("dry_item"));
String countVal3 = c.getString(c.getColumnIndex("iron_item"));
tvVal.setText(countVal1);
tvVal.setVisibility(View.VISIBLE);
您可以直接在textview中显示您的值，而无需将它们转换为整数，然后使用字符串添加进行显示。
如果有帮助，请检查并告诉我。
修改
检查完代码后，我发现以下行可能会在代码中产生问题，而代码会在文本视图中将您的值转换为零
try {
int temp = launDry.get(Integer.parseInt(ll1.getTag().toString()
.trim()));
int val = temp + 1;
tvVal.setText("" + val);
tvVal.setVisibility(View.VISIBLE);
} catch (Exception e) {
tvVal.setText("0"); // Here you are setting it to zero
}
try {
int temp = stremIron.get(Integer.parseInt(ll2.getTag().toString()
.trim()));
int val = temp + 1;
tvVal1.setText("" + val);
tvVal1.setVisibility(View.VISIBLE);
} catch (Exception e) {
tvVal1.setText("0"); // Here you are setting it to zero
}
这些尝试块是一些抛出异常的方法，而异常又会导致文本视图的catch块值变为零。请检查您的try块代码，它们为什么抛出异常。
编辑2：
如果您的HashMap“launDry”或“stremIron”不包含您通过Integer.parseInt(ll2.getTag().toString().trim())的密钥，则它将返回null，整数不能为null。我相信在这种情况下抛出异常。请再次检查。
编辑3： 按要求提供解决方案
try {
String temp = stremIron.get(Integer.parseInt(ll2.getTag().toString()
.trim()));
if(temp != null){
int val = Integer.parseInt(temp) + 1;
tvVal1.setText("" + val);
tvVal1.setVisibility(View.VISIBLE);
}
} catch (Exception e) {
tvVal1.setText("0"); // Here you are setting it to zero
}