我有下面的这个类，当它运行并到达应用程序崩溃的类中的某一行时。如果我注释掉那条线，则应用程序运行良好。当我看着logcat时，我找不到任何CausedBy文字。因此无法弄清楚此崩溃的原因。有人请帮我解决这个问题。
public class Secondscreen extends Activity {
int total=0;
final ArrayList<Listitem> arrayList=new ArrayList<Listitem>();
BaseAdapter adapter =null;
@Override
public void onCreate(final Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.secondscreen);
ListView lv= (ListView) findViewById(R.id.listView1);
final TextView showtotal = (TextView) findViewById(R.id.totalprice);
final Button thirdBtn = (Button) findViewById(R.id.third);
final Controller aController = (Controller) getApplicationContext();
final int cartSize = aController.getCart().getCartSize();
//Addition of item to arraylist
if(cartSize >0)
{
for(int i=0;i<cartSize;i++)
{
String pName = aController.getCart().getProducts(i).getProductName();
int pPrice = aController.getCart().getProducts(i).getProductPrice();
int pQuantity = aController.getCart().getProducts(i).getProductQuantity();
String pDisc = aController.getCart().getProducts(i).getProductDesc();
total = total + pPrice;
Listitem item=new Listitem(pName, pPrice, pDisc, pQuantity);
Log.e("quantity", ""+pQuantity);
Log.e("Intem's quantity", ""+item.getQuantity());
arrayList.add(item);
Log.e("Arraylist item quantity", ""+arrayList.get(i).getQuantity());
}
showtotal.setText(""+total);
}
adapter= new BaseAdapter(){
@Override
public int getCount() {
// TODO Auto-generated method stub
return arrayList.size();
}
@Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return arrayList.get(position);
}
@Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return 0;
}
LayoutInflater inflater=(LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
@Override
public View getView(final int position, View view, ViewGroup viewgroup) {
if (view == null) {
view=inflater.inflate(R.layout.pattern, null);
}
TextView tv=(TextView) view.findViewById(R.id.nameview);
TextView tv2=(TextView) view.findViewById(R.id.pdesc);
TextView tv3=(TextView) view.findViewById(R.id.priceView);
TextView tv4=(TextView) view.findViewById(R.id.quantityView);
Button btn=(Button) view.findViewById(R.id.patternButton);
btn.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
int tempstore=arrayList.get(position).getPrice();
total=total-tempstore;
arrayList.remove(position);
showtotal.setText(""+total);
ModelProducts tempProductObject = aController.getProducts(position);
aController.getCart().removeProducts(tempProductObject);
adapter.notifyDataSetChanged();
int cartSize2 = aController.getCart().getCartSize();
}
});
tv.setText(arrayList.get(position).getName());
tv2.setText(""+arrayList.get(position).getPrice());
tv3.setText(arrayList.get(position).getDesc());
tv4.setText(arrayList.get(position).getQuantity()); //<-this is the line which when gets executed causes the application to crash.
return view;
}
};
lv.setAdapter(adapter);
}
}
最佳答案
是的getQuantity（）返回一个int值
所以改变这个
tv4.setText(arrayList.get(position).getQuantity());
至
tv4.setText(String.valueOf(arrayList.get(position).getQuantity()));
如果没有找到
setText(int)，则ResourceNotFoundException会查找具有int值的资源，如果找不到的话您想要的是
setText(CharacterSequence)，因此您需要使用String.valueof(intvalue)关于java - 无法确定应用程序崩溃的原因，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/23039621/