我已经尝试将 EditText 默认值设置为零，但是当涉及到编辑和删除为“”(空格，编辑文本字段中没有更多的文字 _
按下提交按钮时显示异常 Invalid Int ""。你能告诉我如何解决这个异常吗？
下面是我的代码
for (int j = 0; j < selectedChannels; j++) {
lconper = (Spinner) findViewById (j+120);
int monthlyFeeforChannel = 0;
contractPeriodSelected.add((String) lconper.getSelectedItem());
String monthlyTest = txtMonthlyFee[j].getText().toString().trim();
String freeMonths = txtFreePeriod[j].getText().toString().trim();
if(monthlyTest.trim()==null || monthlyTest.trim()==""){
new AlertDialog.Builder(this)
.setTitle("Warning")
.setMessage(
"You must fill in Monthly Fees for subscribed channels!")
.setNeutralButton("OK",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int id) {
// if this button is clicked, close
// current activity
dialog.cancel();
}});
break;
}
else
{
Log.d("Month" , monthlyTest);
Log.d("freeMonths" , freeMonths);
monthlyFeeforChannel = Integer.parseInt(monthlyTest);
monthlyFee.add(monthlyFeeforChannel);
FreePeriod.add(freeMonths);
}
}
日志
06-20 13:52:03.711: E/AndroidRuntime(17713): FATAL EXCEPTION: main
06-20 13:52:03.711: E/AndroidRuntime(17713): java.lang.IllegalStateException: Could not execute method of the activity
06-20 13:52:03.711: E/AndroidRuntime(17713): at android.view.View$1.onClick(View.java:3130)
06-20 13:52:03.711: E/AndroidRuntime(17713): at android.view.View.performClick(View.java:3652)
06-20 13:52:03.711: E/AndroidRuntime(17713): at android.view.View$PerformClick.run(View.java:14354)
06-20 13:52:03.711: E/AndroidRuntime(17713): at android.os.Handler.handleCallback(Handler.java:605)
06-20 13:52:03.711: E/AndroidRuntime(17713): at android.os.Handler.dispatchMessage(Handler.java:92)
06-20 13:52:03.711: E/AndroidRuntime(17713): at android.os.Looper.loop(Looper.java:137)
06-20 13:52:03.711: E/AndroidRuntime(17713): at android.app.ActivityThread.main(ActivityThread.java:4519)
06-20 13:52:03.711: E/AndroidRuntime(17713): at java.lang.reflect.Method.invokeNative(Native Method)
06-20 13:52:03.711: E/AndroidRuntime(17713): at java.lang.reflect.Method.invoke(Method.java:511)
06-20 13:52:03.711: E/AndroidRuntime(17713): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:794)
06-20 13:52:03.711: E/AndroidRuntime(17713): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:561)
06-20 13:52:03.711: E/AndroidRuntime(17713): at dalvik.system.NativeStart.main(Native Method)
06-20 13:52:03.711: E/AndroidRuntime(17713): Caused by: java.lang.reflect.InvocationTargetException
06-20 13:52:03.711: E/AndroidRuntime(17713): at java.lang.reflect.Method.invokeNative(Native Method)
06-20 13:52:03.711: E/AndroidRuntime(17713): at java.lang.reflect.Method.invoke(Method.java:511)
06-20 13:52:03.711: E/AndroidRuntime(17713): at android.view.View$1.onClick(View.java:3125)
06-20 13:52:03.711: E/AndroidRuntime(17713): ... 11 more
06-20 13:52:03.711: E/AndroidRuntime(17713): Caused by: java.lang.NumberFormatException: Invalid int: ""
06-20 13:52:03.711: E/AndroidRuntime(17713): at java.lang.Integer.invalidInt(Integer.java:138)
06-20 13:52:03.711: E/AndroidRuntime(17713): at java.lang.Integer.parseInt(Integer.java:359)
06-20 13:52:03.711: E/AndroidRuntime(17713): at java.lang.Integer.parseInt(Integer.java:332)
06-20 13:52:03.711: E/AndroidRuntime(17713): at com.test.Eystem1.Confirm.submitOrder(Confirm.java:415)
06-20 13:52:03.711: E/AndroidRuntime(17713): ... 14 more
最佳答案
在上面的代码中，您使用过将字符串转换为整数，在这种情况下您不会将“”(空字符串)转换为整数
Integer.parseInt(monthlyTest); // Here monthyTest value is ""
转换前请确保字符串不为空
检查字符串的长度是否应该大于0。
if(monthlyTest.length()>0)
谢谢.....
关于android - 编辑文本显示异常 Invalid Int ""，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/17206273/