android – 如何使用膨脹的佈局在自定義DialogPreference中訪問視窗小部件？

public class AddressDialogPreference extends DialogPreference {

public AddressDialogPreference(Context context, AttributeSet attrs) {
super(context, attrs);

setDialogLayoutResource(R.layout.address_dialog);
}

@Override
protected void onBindDialogView(View view) {

EditText idField = (EditText) view.findViewById(R.id.hostID);
EditText ipField = (EditText) view.findViewById(R.id.hostIP);

SharedPreferences pref = getSharedPreferences();
idField.setText(pref.getString(getKey() + "_id","ExampleHostname"));
ipField.setText(pref.getString(getKey() + "_ip","192.168.1.1"));

super.onBindDialogView(view);
}

@Override
protected void onDialogClosed(boolean positiveResult) {

if(!positiveResult)
return;

Dialog myDial = getDialog();
EditText idField = (EditText) myDial.findViewById(R.id.hostID);
EditText ipField = (EditText) myDial.findViewById(R.id.hostIP);

SharedPreferences.Editor editor = getEditor();
editor.putString(getKey() + "_id",idField.getText().toString());
editor.putString(getKey() + "_ip",ipField.getText().toString());
}

address_dialog.xml：

<TextView
android:text="Insert IP address"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/hostIP" />

<TextView
android:text="Insert identifier"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/hostID" />

好的,我發現自己.那麼,我還是不知道是什麼導致的錯誤,但我做了很多的佈局和程式碼的變化,突然它只是工作.我試圖回到我在這裡釋出的程式碼,但是我無法重現錯誤.我釋出我的工作程式碼,所以任何人誰遇到這個問題,可能會使用它.

管理員也可以選擇刪除此帖子,因為可能無法重現錯誤.

這裡是佈局：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">

<TextView
android:text="Insert IP address"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/AddressBox" />

<TextView
android:text="Insert identifier"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/HostnameBox" />
</LinearLayout>

和AddressDialogPreference.java：

public class AddressDialogPreference extends DialogPreference {

private EditText ipBox;
private EditText hostBox;

public AddressDialogPreference(Context context, AttributeSet attrs) {
super(context, attrs);

setDialogLayoutResource(R.layout.address_dialog);
}

@Override
protected void onBindDialogView(View view) {

ipBox = (EditText) view.findViewById(R.id.AddressBox);
hostBox = (EditText) view.findViewById(R.id.HostnameBox);

SharedPreferences pref = getSharedPreferences();

hostBox.setText(pref.getString(getKey() + "_host","ExampleHostname"));
ipBox.setText(pref.getString(getKey() + "_ip","192.168.1.1"));

super.onBindDialogView(view);
}

@Override
protected void onDialogClosed(boolean positiveResult) {

if(!positiveResult)
return;

SharedPreferences.Editor editor = getEditor();
editor.putString(getKey() + "_host",hostBox.getText().toString());
editor.putString(getKey() + "_ip",ipBox.getText().toString());
editor.commit();

super.onDialogClosed(positiveResult);
}
}