I am using relative layout for one of my activity, but it stops, whenever i launch this activity. The error is "android.widget.RadioButton cannot be cast to android.widget.Spinner".
The xml file is as follows:
<EditText
android:id="@+id/edit_age"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_alignLeft="@id/edit_first_name"
android:layout_below="@+id/edit_first_name"
android:ems="10"
android:hint="@string/age"
android:inputType="number" >
<requestFocus />
</EditText>
<Spinner
android:id="@+id/spinner_blood_groups"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_below="@id/edit_last_name"
android:hint="@string/blood_group" />
<RadioGroup
android:id="@+id/radio_sex"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@id/edit_age"
android:orientation="horizontal" >
<RadioButton
android:id="@+id/radio_button_male"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/male" />
<RadioButton
android:id="@+id/radio_button_female"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/female" />
</RadioGroup>
I am setting the width of the layout after the activity starts as follows:
public void setLayout()
{
DisplayMetrics metrics = getResources().getDisplayMetrics();
int width = metrics.widthPixels;
RelativeLayout.LayoutParams param = (RelativeLayout.LayoutParams)findViewById(R.id.edit_age).getLayoutParams();
param.width = (int)(0.45*width);
findViewById(R.id.edit_age).setLayoutParams(param);
Spinner spinner = (Spinner)findViewById(R.id.spinner_blood_groups);
ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(this, R.array.blood_groups, android.R.layout.simple_spinner_item);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinner.setAdapter(adapter);
param (RelativeLayout.LayoutParams)findViewById(R.id.spinner_blood_groups).getLayoutParams();
param.width = (int)(0.45*width);
findViewById(R.id.spinner_blood_groups).setLayoutParams(param);
}
I am not sure where am i going wrong. Please help!