-1
林生成2个随机值,并在EditText上您需要输入添加这2个值的结果,当IM特林解析我从EditText上就得到崩溃我的应用程序时错误解析字符串为int
public class Main2Activity extends AppCompatActivity {
public int wynik;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main2);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
setContentView(R.layout.activity_main2);
TextView text = (TextView) findViewById(R.id.txtv);
Random r = new Random();
int i1 = (r.nextInt(100 - 1) + 1);
int i2 = (r.nextInt(100 - 1) + 1);
text.setText(i1 +" + " + i2 + " = ");
wynik =i1+i2;
};
public void backtomain(View view)
{
EditText editText = (EditText) findViewById(R.id.edittext);
String etstring =editText.getText().toString();
Integer etint = Integer.parseInt(etstring); <---------------- CRASH CUZ OF THIS LINE
//if(etint==wynik)
//{
Intent intent = new Intent(this, AalarmActivity.class);
intent.putExtra("toggleBtn", true);
startActivity(intent);
finish();
//}
//else
//{
// Toast.makeText(this, "Error ",
// Toast.LENGTH_LONG).show();
//}
}
}
评论行不完成首先需要修复解析部分。
它如何崩溃?请发布完整的崩溃日志/堆栈跟踪。 – Reigertje
java.lang.IllegalStateException:无法执行android的方法:onClick @Reigertje – kociolekpanoramixa
可能您的输入不是数字。把android:inputType =“number”'放在XML –