Android 如何检查“是否”;textfield1"<&引用;textfield2";
我想检查一个填充的文本字段是否大于另一个填充的文本字段。 就像: 我想要这样的东西:Android 如何检查“是否”;textfield1"<&引用;textfield2";,android,textfield,toast,Android,Textfield,Toast,我想检查一个填充的文本字段是否大于另一个填充的文本字段。 就像: 我想要这样的东西: if (textfield1.getText().toString().less than textfield2.getText().toString()) Toast.makeText(getActivity(), "textfield one is less than textfield two, this is not allowed", Toast.LENGTH_SHORT).show(); 我找不到
if (textfield1.getText().toString().less than textfield2.getText().toString())
Toast.makeText(getActivity(), "textfield one is less than textfield two, this is not allowed", Toast.LENGTH_SHORT).show();
我找不到我如何假定您的文本视图中有数字?从
字符串
中生成一个整数
,并比较这些数字:
Integer input1 = Integer.parseInt(textfield1.getText().toString());
Integer input2 = Integer.parseInt(textfield2.getText().toString());
if (input1 < input2) { }
我想你的文本视图中有数字吧?从
字符串
中生成一个整数
,并比较这些数字:
Integer input1 = Integer.parseInt(textfield1.getText().toString());
Integer input2 = Integer.parseInt(textfield2.getText().toString());
if (input1 < input2) { }
试试这个
if(textfield1.getText().toString().trim().length() > 0 && textfield2.getText().toString().trim().length() > 0) {
try {
int i1 = Integer.parseInt(textfield1.getText().toString().trim());
int i2 = Integer.parseInt(textfield2.getText().toString().trim());
if(i1 > i2) {
// do needfull here
}
} catch(Exception ex) {
Log.e("tag", ex.getMessage());
// user entered some character which is not number
}
}
试试这个
if(textfield1.getText().toString().trim().length() > 0 && textfield2.getText().toString().trim().length() > 0) {
try {
int i1 = Integer.parseInt(textfield1.getText().toString().trim());
int i2 = Integer.parseInt(textfield2.getText().toString().trim());
if(i1 > i2) {
// do needfull here
}
} catch(Exception ex) {
Log.e("tag", ex.getMessage());
// user entered some character which is not number
}
}
textfield1.getText().toString().compareTo(textfield2.getText().toString())<0textfield1.getText().toString().compareTo(textfield2.getText().toString())<0