小编use*_*307的帖子

我试图改变popupmenu的背景,但我的实现不起作用.

这是我的代码:

<style name="MyHoloLight" parent="android:Theme.Holo.Light">
    <item name="android:popupMenuStyle">@style/popupMenuStyle</item>
</style>
<style name="popupMenuStyle" parent="@android:style/Widget.PopupMenu">
    <item name="android:popupBackground">@color/bgPopumMenu</item>
</style>

在AndroidManifest.xml中应用

<application
        android:hardwareAccelerated="true"
        android:label="@string/app_name"
        android:icon="@drawable/ic_launcher"
        android:theme="@style/MyHoloLight">

我尝试在我的 java 应用程序中创建基本身份验证。对于他们，我在 gradle 文件中使用了这个依赖项

dependencies {
compile group: 'org.springframework.boot', name: 'spring-boot-starter', version: '1.5.9.RELEASE'
compile group: 'org.springframework.boot', name: 'spring-boot-starter-web', version: '1.5.9.RELEASE'
compile group: 'org.springframework.boot', name: 'spring-boot-starter-parent', version: '1.3.3.RELEASE'
compile group: 'org.springframework.boot', name: 'spring-boot-starter-security'
compile group: 'org.springframework.boot', name: 'spring-boot-starter-log4j2', version: '1.4.3.RELEASE'
compile group: 'org.springframework.boot', name: 'spring-boot-starter-data-mongodb', version: '1.5.9.RELEASE'
compile group: 'org.apache.logging.log4j', name: 'log4j-core', version: '2.7'
compile group: 'org.apache.logging.log4j', name: 'log4j-api', version: '2.7'
compile group: 'org.apache.logging.log4j', name: 'log4j-web', version: '2.7'
compile('org.hibernate:hibernate-core')    
testCompile group: 'junit', name: 'junit', version: '4.12'

}

当我实现扩展类 WebSecurityConfigurerAdapter 想法时显示错误 …

请提示,如何在SQLite中使用REGEXP？

实现:

SELECT field FROM table WHERE field REGEXP '123'

它不起作用. Error: no such function: REGEXP

我尝试在片段中获得结果。片段中的代码

override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
    super.onActivityResult(requestCode, resultCode, data)
    if (resultCode != Activity.RESULT_OK) return

    val bundle = data?.extras
    when (requestCode) {
        LicenseActivationActivity.REQUEST_RESULT_COUNT_ENTERPRISE ->
     //
    }
}

这段代码被调用。而且还有 DrawerActivity 中的 onActivityResult 方法

是否只在片段中调用 onActivityResult ？

更新

DrawerActivity 中的这段代码

override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
    super.onActivityResult(requestCode, resultCode, data)
    if (resultCode == Activity.RESULT_OK) {
        WayBillsActivity.start(this)
        finish()
    }
}

不知为何，也满足了，不过是在fragment中的onActivityResult之后。

服务器有两个参数:String和JSON.提示,正确我JSON在POST请求中传输和字符串？

try {
    HttpClient httpClient = new DefaultHttpClient();
    HttpPost httpPost = new HttpPost("my_url");
    List parameters = new ArrayList(2);
    JSONObject jsonObject = new JSONObject();
    jsonObject.put("par_1", "1");
    jsonObject.put("par_2", "2");
    jsonObject.put("par_3", "3");
    parameters.add(new BasicNameValuePair("action", "par_action"));
    parameters.add(new BasicNameValuePair("data", jsonObject.toString()));
    httpPost.setEntity(new UrlEncodedFormEntity(parameters));
    HttpResponse httpResponse = httpClient.execute(httpPost);
    Log.v("Server Application", EntityUtils.toString(httpResponse.getEntity())+" "+jsonObject.toString());

} catch (UnsupportedEncodingException e) {
    Log.e("Server Application", "Error: " + e);
} catch (ClientProtocolException e) {
    Log.e("Server Application", "Error: " + e);
} catch (IOException e) {
    Log.e("Server Application", …

我使用 recyclerview 来动态列表。插入和删除项目后，recyclerview 会执行急剧更新。我使用 DefaultItemAnimator 来实现我列出的更漂亮的更新。

optionList2.itemAnimator = DefaultItemAnimator()

我想尝试增加动画的延迟。你能告诉我该怎么做吗？