在对话框中获取事件（确定，取消）按钮pressed（Android版） [英] Get event on dialog( Ok ,Cancel) button pressed(Android)

问题描述

在我的Andr​​oid应用程序，我显示，其中包含的EditText 的DialogBox的。使用时会显示该DialogBox的 preferenceCategory 。我的 XML 文件看起来像

In my Android application I am displaying the dialogbox which contains edittext. This dialogbox is displayed using PreferenceCategory.My xml file looks like

<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android" >

    <PreferenceCategory android:title="@string/security_setting_edittext_hint" >
        <EditTextPreference
        android:dialogTitle="@string/security_setting_button"
        android:key="set_password_preference"
        android:summary="@string/set_password_summary"
        android:title="@string/security_setting_button"
        android:inputType="number"
        android:icon="@drawable/lock"
         />
    </PreferenceCategory>

</PreferenceScreen>

我的Java文件看起来像

My Java file looks like

public class Settings extends PreferenceActivity {

    Dialog setPasswordDialog;
    EditText setPassword;
    EditTextPreference editPreference;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        this.setTitle("Settings");
        addPreferencesFromResource(R.xml.preference_authentication);
        editPreference=(EditTextPreference)   findPreference("set_password_preference");

}

有是在显示对话框没有问题，但现在我想寿获取事件，当从对话框，确定和取消按钮pssed做点什么$ P $。
请给我提供的解决方案。

There is no issue in displaying the dialog but now i want tho get event when Ok and Cancel button from dialog box is pressed to do something. Please provide me solution.

推荐答案

您需要创建自定义编辑文本preference如下：

You will need to create your custom edit text preference as follows.

public class MyEditTextPreference extends EditTextPreference {

    public MyEditTextPreference(Context context) {
        super(context);
    }
    public MyEditTextPreference(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
    }
    public MyEditTextPreference(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    @Override
    public void onClick(DialogInterface dialog, int which) {
        switch (which) {
        case DialogInterface.BUTTON_POSITIVE:
        // Put your logic here for Ok button press
        break;

        case DialogInterface.BUTTON_NEGATIVE:
        // Put your logic here for Cancel button press
        break;      
        }
        super.onClick(dialog, which);
    }
}

然后在XML文件中按如下方式使用它：

Then use it in xml file as follows:

<com.package.MyEditTextPreference
android:dialogTitle="@string/security_setting_button"
android:key="set_password_preference"
android:summary="@string/set_password_summary"
android:title="@string/security_setting_button"
android:inputType="number"
android:icon="@drawable/lock"
 />

在这里com.package应该由实际的包在你的项目被替换在其中创建MyEditText preference

where com.package should be replaced by the actual package in your project where you create MyEditTextPreference

这篇关于在对话框中获取事件（确定，取消）按钮pressed（Android版）的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！