在 DialogFragment 中为 AlertDialog 膨胀自定义视图的问题 [英] Problem inflating custom view for AlertDialog in DialogFragment

问题描述

我正在尝试使用 AlertDialog 中的自定义视图创建一个 DialogFragment.这个视图必须从 xml 膨胀.在我的 DialogFragment 类中，我有:

I'm trying to create a DialogFragment using a custom view in an AlertDialog. This view must be inflated from xml. In my DialogFragment class I have:

@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();
}

我已经为 .setView() 尝试了其他膨胀方法，例如:

I have tried other inflation methods for .setView() such as:

.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.

After setting the target fragment in the fragment that is showing this dialog.

所有这些试图夸大我的自定义视图的尝试都会导致以下异常:

All of these attempts to inflate my custom view result in the following exception:

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 的 getLayoutInflator(Bundle):

While if I try to use the DialogFragment's getLayoutInflator(Bundle) like this:

.setView(getLayoutInflater(savedInstanceState).inflate(R.layout.dialog, null))

我收到一个StackOverflowError.

有谁知道如何在 DialogFragment 中为 AlertDialog 增加自定义视图?

Does anyone know how to inflate a custom view for an AlertDialog in a DialogFragment?

推荐答案

第一行错误提示我这与您创建对话框的方式有关 - 而不是对话框本身.

The first error line gives me the hint that this is related to how you are creating your dialog - not the dialog itself.

您是自动创建对话框(这可能意味着在所有视图设置之前调用它)还是响应按钮单击?由于实例化顺序，我最初遇到了片段问题.

Are you creating the dialog automatically (which could mean this gets called before the views are all set up) or in response to a button click? I initially had problems with fragments due to instantiation order.

我使用与您相同的代码来设置视图，并且我的结果有效.我删掉了其他设置以使它看起来更简洁，但无论有没有它都可以使用.

I used the same code to set the view as you have, and my result works. I cut out the other setup to make this look cleaner, but it works with or without it.

@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
    AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());

    View view = getActivity().getLayoutInflater().inflate(R.layout.dialog_layout, null);
    builder.setView(view);

    return builder.create();
}

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