我在名为activity_products_final的布局文件中有一个seachview
<android.support.v7.widget.SearchView
android:id="@+id/searchView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:queryHint="Search..">
</android.support.v7.widget.SearchView>
</LinearLayout>
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活动:
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_products_final);
searchView = (android.support.v7.widget.SearchView) findViewById(R.id.searchView);
searchView.setIconified(false);
searchView.onActionViewExpanded();
searchView.clearFocus();
searchView.setOnQueryTextListener(new android.support.v7.widget.SearchView.OnQueryTextListener() {
@Override
public boolean onQueryTextSubmit(String query) {
if (adapter != null)
filterData(query);
return false;
}
@Override
public boolean onQueryTextChange(String query) {
if (adapter != null)
filterData(query);
return false;
}
});
ImageView closeButton = (ImageView) searchView.findViewById(R.id.search_close_btn);
closeButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
searchView.setQuery("", false);
searchView.clearFocus();
//collapseAll();
}
});
}
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清单文件
<activity
android:name=".ActivityProductList"
android:configChanges="orientation|screenSize" …
Run Code Online (Sandbox Code Playgroud) 我在.run()中有一个ajax调用,它将一个变量加载到$ rootScope中.在与视图关联的控制器中需要该变量.有时在.controller加载时刷新(F5)时,$ rootScope.SuperCategories中没有任何内容.
sampleApp.factory('SuperCategoryService', ['$http', '$q', '$rootScope', function ($http, $q, $rootScope){
var SuperCategoryService = {};
SuperCategoryService.SuperCategories = $rootScope.SuperCategories;
alert ($rootScope.SuperCategories);
return SuperCategoryService;
}]);
sampleApp.run(function($rootScope, $q, $http) {
var req = {
method: 'POST',
url: 'SuperCategoryData.txt',
//url: 'http://localhost/cgi-bin/superCategory.pl',
headers: { 'Content-Type': 'application/x-www-form-urlencoded' }//,
//data: { action: 'GET' }
};
$rootScope.SuperCategories = [];
$rootScope.GetSuperCategories = function () {
var defer = $q.defer();
$http(screq).then(function(response) {
$rootScope.SuperCategories = response.data;
//alert ($rootScope.SuperCategories);
defer.resolve($rootScope.SuperCategories);
}, function(error) {
defer.reject("Some error");
});
return defer.promise;
}
$rootScope.GetSuperCategories();
});
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如何解决这个bug.
我看到angularJS文件,在某些地方,评论者评论了这3行:
var deferred = $q.defer();
deferred.resolve(BrandList);
return deferred.promise;
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并替换为这一个:
return $q.when(BrandList);
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我想了解两者之间的区别.两者都有同样的目的吗?哪个应该用?
我有一个既有文本又有图像的按钮。它所取的图像尺寸作为图像的实际尺寸。如何更改按钮中图像的大小?
<Button
android:id="@+id/button3"
android:layout_weight="1"
android:layout_height="match_parent"
android:layout_width="wrap_content"
android:drawableTop="@drawable/home_icon"
android:text="Settings"
/>
Run Code Online (Sandbox Code Playgroud) 这是我的ExpandableRecyclerAdapter适配器
public class MyAdapter extends ExpandableRecyclerAdapter<MyAdapter.ProductParentViewHolder, MyAdapter.ProductChildViewHolder> {
private LayoutInflater mInflater;
private Context context;
private List<? extends ParentListItem> mParentItemList;
public MyAdapter(Context context, List<ParentListItem> itemList) {
super(itemList);
mInflater = LayoutInflater.from(context);
this.context = context;
this.mParentItemList = itemList;
}
@Override
public ProductParentViewHolder onCreateParentViewHolder(ViewGroup viewGroup) {
View view = mInflater.inflate(R.layout.list_item_crime_parent, viewGroup, false);
return new ProductParentViewHolder(view);
}
@Override
public ProductChildViewHolder onCreateChildViewHolder(ViewGroup viewGroup) {
View view = mInflater.inflate(R.layout.list_item_crime_child, viewGroup, false);
return new ProductChildViewHolder(view);
}
@Override
public void onBindParentViewHolder(ProductParentViewHolder crimeParentViewHolder, int i, ParentListItem parentListItem) {
Product product …
Run Code Online (Sandbox Code Playgroud) 获得应用邀请后,被邀请者点击链接.根据已经安装的应用程序,他将被引导到app store,最后来到处理AppInite链接的Actiity.
我的深层链接看起来像这样:http: //example.com/app-invite/
其中user_id是注册用户的id(在我的后端服务器中).我能够获得用户的正确ID.
这是处理深层链接的代码.
private void processReferralIntent(Intent intent) {
String invitationId = AppInviteReferral.getInvitationId(intent);
String deepLink = AppInviteReferral.getDeepLink(intent);
String userId = deepLink.substring(deepLink.lastIndexOf("/") + 1);
Utility.displayToast("userid " + userId);
// Handle the deep link. For example, open the linked
// content, or apply promotional credit to the user's
// account.
Log.d(TAG, "Found Referral: " + invitationId + ":" + deepLink);
((TextView) findViewById(R.id.deep_link_text))
.setText(getString(R.string.deep_link_fmt, deepLink));
((TextView) findViewById(R.id.invitation_id_text))
.setText(getString(R.string.invitation_id_fmt, invitationId));
}
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现在,如果这是被邀请者第一次安装应用程序,点击应用邀请链接,我想给被邀请者和邀请者一些促销信用.
我怎么知道这是第一次?甚至应用程序安装alredy processReferralIntent()将被调用.
我正在尝试将Dagger2添加到Android Studio中的项目中.
这是我的依赖.
compile 'com.google.dagger:dagger:2.8'
annotationProcessor 'com.google.dagger:dagger-compiler:2.8'
provided 'javax.annotation:jsr250-api:1.0'
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我正在关注这个例子.
https://guides.codepath.com/android/Dependency-Injection-with-Dagger-2#advantages
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我收到了这个错误.
无法解析符号DaggerNetComponent
我尝试更改依赖关系和谷歌搜索后找到的其他解决方案.但没有运气.
谁可以帮我这个事?
给出教程中的以下函数模板.
template<class T>
double GetAverage(T tArray[], int nElements)
{
T tSum = T(); // tSum = 0
for (int nIndex = 0; nIndex < nElements; ++nIndex)
{
tSum += tArray[nIndex];
}
// Whatever type of T is, convert to double
return double(tSum) / nElements;
}
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在线
T tSum = T(); // tSum = 0
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他们说它将调用特定类型的默认构造函数(基于我们称之为此函数的类型).我怀疑这个调用是如何将值赋给tSum的,因为这会调用构造函数.但由于构造函数不返回任何内容,iSum如何初始化为0表示int或0.0表示double.
在我的脚本to_json()中以json格式转换loop_data并分配给$ json.
my $json = to_json(\@loop_data);
print $json;
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给出了这个输出.
[
{
"Name": "Vivek",
"Age": 20
},
{
"Name": "Sonali",
"Age": 19
}
]
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但不是我想要打印$ json来提供此输出.
{"Friends" : [
{
"Name": "Vivek",
"Age": 20
},
{
"Name": "Sonali",
"Age": 19
}
]}
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在哪里添加"朋友"和{}.
我的Activity上有一个ExpandableListView,其中group包含图像和名称,而child包含group(name,id等)的变体.无论我单击展开/折叠按钮,还是单击组中的任何位置,它都会一直展开/折叠.我想要的是,只有当用户点击指标时,才会展开/折叠列表.我怎样才能做到这一点?为了单击TextView,我想打开不同的活动.不幸的是,OnGroupClickListener不提供此信息.
谁可以帮我这个事?
谢谢