问题是tv2.settext()中的Resources $ NotFoundException,我不知道为什么我在比萨饼标题和计数中有一个TreeMap。 请帮忙!
通话:
for (Pizza pizza : list) {
if(map.containsKey(pizza.title))
{
int i = map.get(pizza.title);
map.remove(pizza.title);
map.put(pizza.title, i++);
}
else
{
map.put(pizza.title, 1);
}
}
披萨:
public class Pizza implements Comparable<String> {
public String title;
public int rate;
public String date;
public Bitmap picture;
public int id;
@Override
public int compareTo(String another) {
// TODO Auto-generated method stub
return this.title.compareTo(another);
}
}
错误代码:
for (Entry<String, Integer> entry : map.entrySet()) {
tv.setText(entry.getKey());
tv2.setText((Integer)entry.getValue()); //Error occures here
tv.setGravity(Gravity.LEFT);
tv2.setGravity(Gravity.RIGHT);
TableRow tr1 = new TableRow(this);
tr1.addView(tv);
tr1.addView(tv2);
tl.addView(tr1, new TableLayout.LayoutParams(
LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT));
}
}
错误:
10-04 09:04:40.475: ERROR/AndroidRuntime(954): Caused by: android.content.res.Resources$NotFoundException: String resource ID #0x1
答案 0 :(得分:23)
将tv2.setText((Integer)entry.getValue());
更改为
tv2.setText(entry.getValue().toString());
喜欢这个
TableRow tr1 = new TableRow(this);
for (Entry<String, Integer> entry : map.entrySet()) {
tv.setText(entry.getKey());
tv2.setText((Integer)entry.getValue()); //Error occures here
tv.setGravity(Gravity.LEFT);
tv2.setGravity(Gravity.RIGHT);
tr1.addView(tv);
tr1.addView(tv2);
tl.addView(tr1, new TableLayout.LayoutParams(
LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT));
}
}
答案 1 :(得分:3)
您应该使用:tv2.setText(entry.getValue().toString());
此外,您不需要以下代码行:
map.remove(pizza.title);
您需要写的只有:map.put(pizza.title, i++);
因为地图的“put”方法会替换旧值。
答案 2 :(得分:0)
tv2.setText((Integer)entry.getValue());
将您的Integer
解析为String
答案 3 :(得分:0)
我不知道你要做什么,但你显然没有使用R.string.my_title_or_so
setText
。传递给此方法的Integer
应该是R
类中的有效(生成)ID。或者您将数字转换为字符串,例如num + ""
。