Question

解析时显示错误。我只想传递用户获得的整数值。但它在解析时显示错误。因此，纠正如何接受用户的整数值以及如何以整数格式传递它的问题。编码：

String s=et1.getText().toString();
if(s.matches("")){
    Toast t1= Toast.makeText(MainActivity.this, "Empty", 2000);
    t1.show();
}
else{
    int l = Integer.parseInt(s);
    Toast t2= Toast.makeText(MainActivity.this, s, 2000);
    t2.show();
    tv1.setText(l);
    Intent i1= new Intent(Loadscreen.this,Game01.class);
    i1.putExtra("l", l);
    startActivity(i1);
    Loadscreen.this.finish();
}

edittext的xml部分

<EditText
        android:id="@+id/editText1"
        android:layout_width="match_parent"
        android:layout_height="45dp"
        android:layout_x="0dp"
        android:layout_y="219dp"
        android:background="#00000000"
        android:ems="10"
        android:gravity="center_vertical"
        android:hint="Specify Level"
        android:inputType="number" />

堆栈跟踪：

02-28 20:06:24.332: E/AndroidRuntime(647): FATAL EXCEPTION: main
02-28 20:06:24.332: E/AndroidRuntime(647): android.content.res.Resources$NotFoundException: String resource ID #0x5 
02-28 20:06:24.332: E/AndroidRuntime(647): at android.content.res.Resources.getText(Resources.java:201) 
02-28 20:06:24.332: E/AndroidRuntime(647): at android.widget.TextView.setText(TextView.java:2857)   
02-28 20:06:24.332: E/AndroidRuntime(647): at com.example.abc.MainActivity$1.onClick(MainActivity.java:37) 
02-28 20:06:24.332: E/AndroidRuntime(647): at android.view.View.performClick(View.java:2485)
02-28 20:06:24.332: E/AndroidRuntime(647): at android.view.View$PerformClick.run(View.java:9080) 
02-28 20:06:24.332: E/AndroidRuntime(647): at android.os.Handler.handleCallback(Handler.java:587) – Shubhankar 2 mins ago       
02-28 20:06:24.332: E/AndroidRuntime(647): at android.os.Handler.dispatchMessage(Handler.java:92) 
02-28 20:06:24.332: E/AndroidRuntime(647): at android.os.Looper.loop(Looper.java:123) 
02-28 20:06:24.332: E/AndroidRuntime(647): at android.app.ActivityThread.main(ActivityThread.java:3683)
02-28 20:06:24.332: E/AndroidRuntime(647): at java.lang.reflect.Method.invokeNative(Native Method) 
02-28 20:06:24.332: E/AndroidRuntime(647): at

java.lang.reflect.Method.invoke（Method.java:507）

Answer 1

更改为

int l = Integer.parseInt(s);
tv1.setText(String.valueOf(l));

setText需要CharacterSequence。但是，还有一种方法将resourceid作为参数。在你的情况下，setText采用了int。如果android没有找到具有提到的id的资源，则会获得ResourceNotFoundException

如何使用数字类型Edittext传递整数值？

1 个答案: