来自android的java.lang.classcastexception android.widget.textview错误，但我看不到

Question

first time posting, self thought programmer and having a class cast exception in android. I understand what the error is and I know what's causing it, yet I've no idea why it is happening.

public class ChangeTwitter extends Activity {

 EditText newtwitter; EditText password; Button submitbutton; InputStream is = null; String result = ""; private static String passwordchecker; FUNCTIONS callfunction = new FUNCTIONS(); ERRORS callerrors = new ERRORS(); @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.twitterchanger); try { newtwitter = (EditText) findViewById(R.id.twitterchangertwitter); password = (EditText) findViewById(R.id.twitterchangerpassword); submitbutton = (Button) findViewById(R.id.twitterchangersubmitbutton); } catch (Exception e) { Log.e("log_tag", "Error is:"+e.toString()); } 

<TextView 
        android:text="" 
        android:id="@+id/twitterchangerspacer1" 
        android:layout_width="wrap_content" 
        android:layout_height="wrap_content">
    </TextView>
    <TextView 
        android:text="Please enter the twitter name you wish to update to:"
        android:id="@+id/twitterchangertext1" 
        android:layout_width="wrap_content" 
        android:layout_height="wrap_content">
    </TextView>
    <TextView 
        android:text="" 
        android:id="@+id/twitterchangerspacer2" 
        android:layout_width="wrap_content" 
        android:layout_height="wrap_content">
    </TextView>
    <EditText 
        android:layout_height="wrap_content" 
        android:layout_width="fill_parent" 
        android:id="@+id/twitterchangertwitter" 
        android:text="">
    </EditText>
    <TextView 
        android:text="" 
        android:id="@+id/twitterchangerspacer3" 
        android:layout_width="wrap_content" 
        android:layout_height="wrap_content">
    </TextView>
    <TextView 
        android:text="Please confirm with your password:" 
        android:id="@+id/twitterchangerpassword" 
        android:layout_width="wrap_content" 
        android:layout_height="wrap_content">
    </TextView>
    <TextView 
        android:text="" 
        android:id="@+id/twitterchangerspacer4" 
        android:layout_width="wrap_content" 
        android:layout_height="wrap_content">
    </TextView>
    <EditText 
        android:layout_height="wrap_content" 
        android:layout_width="fill_parent" 
        android:id="@+id/twitterchangerpassword" 
        android:text="">
    </EditText>
    <TextView android:text="" 
        android:id="@+id/twitterchangerspacer5" 
        android:layout_width="wrap_content" 
        android:layout_height="wrap_content">
    </TextView>
    <TextView android:text="TextView" 
        android:id="@+id/twitterchangerspacer6" 
        android:layout_width="wrap_content" 
        android:layout_height="wrap_content">
    </TextView>
    <Button android:text="Submit" 
        android:layout_height="wrap_content" 
        android:layout_width="fill_parent" 
        android:id="@+id/twitterchangersubmitbutton">
    </Button>

The error that come from the second EditText in the try catch statement (password) is one of java.lang.classcastexception android.widget.textview. I have dozens of editviews like this and this one causes the program to crash. I actually don't see why.

Thanks for you time and sorry about the poor formatting on the xml file, I couldn't figure out how to spruce it up.

Answer 1

You've got two elements with the same ID:

<TextView android:text="Please confirm with your password:" 
    android:id="@+id/twitterchangerpassword" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content">
</TextView>

<EditText android:layout_height="wrap_content"
    android:layout_width="fill_parent" 
    android:id="@+id/twitterchangerpassword" 
    android:text="">
</EditText>

Give them different IDs - I assume it's picking the first one (the TextView ) which obviously can't be cast to an EditText .