Hi,
I am creating a custom view which populates based on a condition "Yes" or "No", implemented through RadioButtons & ViewStub. Unfortunately things are not going as planned:
CustomView -- artooConditional:
public artooConditional(Context context, AttributeSet attrs) {
super(context, attrs);
setAttributes(attrs);
}
private void setAttributes(AttributeSet attrs) {
TypedArray a = getContext().obtainStyledAttributes(attrs,
R.styleable.artooConditional);
mLayout = a.getResourceId(R.styleable.artooConditional_layout, NO_ID);
LayoutInflater inflater = (LayoutInflater) getContext()
.getSystemService(getContext().LAYOUT_INFLATER_SERVICE);
View v = inflater.inflate(R.layout.types_conditional, null, false);
addView(v, new LayoutParams(LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT));
RadioGroup group = (RadioGroup) v
.findViewById(R.id.types_conditional_group);
layout = (ViewStub) v.findViewById(R.id.types_conditional_layout);
group.setOnCheckedChangeListener(new OnCheckedChangeListener() {
@Override
public void onCheckedChanged(RadioGroup group, int checkedId) {
if (checkedId == R.id.types_conditional_yes) {
if (!inflated) {
layout.setLayoutResource(mLayout);
layout.inflate();
inflated = true;
}
// layout.setVisibility(View.VISIBLE);
} else {
// if (layout.getVisibility() != View.GONE)
layout.setVisibility(View.GONE);
inflated = false;
}
}
});
a.recycle();
}
Supporting xml layout:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:a="http://schemas.android.com/apk/res/com.android.artoo.types.buttondialog"
android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="vertical">
<RadioGroup android:layout_width="fill_parent"
android:layout_height="wrap_content" android:orientation="horizontal" android:id="@+id/types_conditional_group">
<RadioButton android:layout_width="wrap_content"
android:layout_height="wrap_content" android:text="Yes" android:layout_weight="1" android:id="@+id/types_conditional_yes"/>
<RadioButton android:layout_width="wrap_content"
android:layout_height="wrap_content" android:text="No" android:layout_weight="1" android:id="@+id/types_conditional_no"/>
</RadioGroup>
<ViewStub android:layout_width="fill_parent"
android:layout_height="wrap_content" android:id="@+id/types_conditional_layout" android:visibility="gone"/>
</LinearLayout>
LogCat:
08-25 16:14:39.579: ERROR/AndroidRuntime(356): Uncaught handler: thread main exiting due to uncaught exception
08-25 16:14:39.599: ERROR/AndroidRuntime(356): java.lang.IllegalStateException: ViewStub must have a non-null ViewGroup viewParent
08-25 16:14:39.599: ERROR/AndroidRuntime(356): at android.view.ViewStub.inflate(ViewStub.java:246)
08-25 16:14:39.599: ERROR/AndroidRuntime(356): at com.android.artoo.types.buttondialog.artooConditional$1.onCheckedChanged(artooConditional.java:67)
08-25 16:14:39.599: ERROR/AndroidRuntime(356): at android.widget.RadioGroup.setCheckedId(RadioGroup.java:172)
08-25 16:14:39.599: ERROR/AndroidRuntime(356): at android.widget.RadioGroup.access$600(RadioGroup.java:52)
08-25 16:14:39.599: ERROR/AndroidRuntime(356): at android.widget.RadioGroup$CheckedStateTracker.onCheckedChanged(RadioGroup.java:342)
08-25 16:14:39.599: ERROR/AndroidRuntime(356): at android.widget.CompoundButton.setChecked(CompoundButton.java:125)
08-25 16:14:39.599: ERROR/AndroidRuntime(356): at android.widget.CompoundButton.toggle(CompoundButton.java:85)
08-25 16:14:39.599: ERROR/AndroidRuntime(356): at android.widget.RadioButton.toggle(RadioButton.java:69)
08-25 16:14:39.599: ERROR/AndroidRuntime(356): at android.widget.CompoundButton.performClick(CompoundButton.java:97)
08-25 16:14:39.599: ERROR/AndroidRuntime(356): at android.view.View.onTouchEvent(View.java:4133)
08-25 16:14:39.599: ERROR/AndroidRuntime(356): at android.widget.TextView.onTouchEvent(TextView.java:6510)
08-25 16:14:39.599: ERROR/AndroidRuntime(356): at android.view.View.dispatchTouchEvent(View.java:3672)
08-25 16:14:39.599: ERROR/AndroidRuntime(356): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:882)
08-25 16:14:39.599: ERROR/AndroidRuntime(356): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:882)
08-25 16:14:39.599: ERROR/AndroidRuntime(356): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:882)
08-25 16:14:39.599: ERROR/AndroidRuntime(356): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:882)
08-25 16:14:39.599: ERROR/AndroidRuntime(356): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:882)
08-25 16:14:39.599: ERROR/AndroidRuntime(356): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:882)
08-25 16:14:39.599: ERROR/AndroidRuntime(356): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:882)
08-25 16:14:39.599: ERROR/AndroidRuntime(356): at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1712)
08-25 16:14:39.599: ERROR/AndroidRuntime(356): at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1202)
08-25 16:14:39.599: ERROR/AndroidRuntime(356): at android.app.Activity.dispatchTouchEvent(Activity.java:1987)
08-25 16:14:39.599: ERROR/AndroidRuntime(356): at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1696)
08-25 16:14:39.599: ERROR/AndroidRuntime(356): at android.view.ViewRoot.handleMessage(ViewRoot.java:1658)
08-25 16:14:39.599: ERROR/AndroidRuntime(356): at android.os.Handler.dispatchMessage(Handler.java:99)
08-25 16:14:39.599: ERROR/AndroidRuntime(356): at android.os.Looper.loop(Looper.java:123)
08-25 16:14:39.599: ERROR/AndroidRuntime(356): at android.app.ActivityThread.main(ActivityThread.java:4203)
08-25 16:14:39.599: ERROR/AndroidRuntime(356): at java.lang.reflect.Method.invokeNative(Native Method)
08-25 16:14:39.599: ERROR/AndroidRuntime(356): at java.lang.reflect.Method.invoke(Method.java:521)
08-25 16:14:39.599: ERROR/AndroidRuntime(356): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:791)
08-25 16:14:39.599: ERROR/AndroidRuntime(356): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:549)
08-25 16:14:39.599: ERROR/AndroidRuntime(356): at dalvik.system.NativeStart.main(Native Method)
I can see, the first time the ViewStub is inflated, its parent becomes null and thus is causing an error when I click "Yes" after clicking "No". Whats the best way to create such a view?
Any help will be most appreciated. Thanks
Sameer