我正在尝试DialogFragment
在AlertDialog
. 这个视图必须是从 xml 扩展而来的。在我的DialogFragment
课堂上,我有:
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
return new AlertDialog.Builder(getActivity())
.setTitle("Title")
.setView(getActivity().getLayoutInflater().inflate(R.layout.dialog, null))
.setPositiveButton(android.R.string.ok, this)
.setNegativeButton(android.R.string.cancel, null)
.create();
}
我尝试过其他通货膨胀方法,.setView()
例如:
.setView(getActivity().getLayoutInflater().inflate(R.layout.dialog, (ViewGroup) getView(), false))
和
.setView(getActivity().getLayoutInflater().inflate(R.layout.dialog, (ViewGroup) getTargetFragment().getView(), false))
在显示此对话框的片段中设置目标片段后。
所有这些膨胀我的自定义视图的尝试都会导致以下异常:
E/AndroidRuntime(32352): android.util.AndroidRuntimeException: requestFeature() must be called before adding content
E/AndroidRuntime(32352): at com.android.internal.policy.impl.PhoneWindow.requestFeature(PhoneWindow.java:214)
E/AndroidRuntime(32352): at com.android.internal.app.AlertController.installContent(AlertController.java:248)
E/AndroidRuntime(32352): at android.app.AlertDialog.onCreate(AlertDialog.java:314)
E/AndroidRuntime(32352): at android.app.Dialog.dispatchOnCreate(Dialog.java:335)
E/AndroidRuntime(32352): at android.app.Dialog.show(Dialog.java:248)
E/AndroidRuntime(32352): at android.support.v4.app.DialogFragment.onStart(DialogFragment.java:339)
E/AndroidRuntime(32352): at android.support.v4.app.Fragment.performStart(Fragment.java:1288)
E/AndroidRuntime(32352): at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:873)
E/AndroidRuntime(32352): at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1041)
E/AndroidRuntime(32352): at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:625)
E/AndroidRuntime(32352): at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1360)
E/AndroidRuntime(32352): at android.support.v4.app.FragmentManagerImpl$1.run(FragmentManager.java:411)
E/AndroidRuntime(32352): at android.os.Handler.handleCallback(Handler.java:587)
E/AndroidRuntime(32352): at android.os.Handler.dispatchMessage(Handler.java:92)
E/AndroidRuntime(32352): at android.os.Looper.loop(Looper.java:132)
E/AndroidRuntime(32352): at android.app.ActivityThread.main(ActivityThread.java:4028)
E/AndroidRuntime(32352): at java.lang.reflect.Method.invokeNative(Native Method)
E/AndroidRuntime(32352): at java.lang.reflect.Method.invoke(Method.java:491)
E/AndroidRuntime(32352): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:844)
E/AndroidRuntime(32352): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:602)
E/AndroidRuntime(32352): at dalvik.system.NativeStart.main(Native Method)
如果我尝试像这样使用DialogFragment
's getLayoutInflator(Bundle)
:
.setView(getLayoutInflater(savedInstanceState).inflate(R.layout.dialog, null))
我得到一个StackOverflowError
.
有谁知道如何为AlertDialog
in扩展自定义视图DialogFragment
?