Question

使用Intent LaunchIntent = getPackageManager().getLaunchIntentForPackage("com.xx.yyyy"); if (LaunchIntent != null) { startActivity(LaunchIntent); finish(); }调用其他应用的意图后，我无法重定向活动。

假设我有一个“ A”应用和“ B”应用。

在应用程序“ A”中，A1是我的活动启动器。从A1导航到A2活动，并调用应用程序“ B”的意图

我的问题是，在活动B中完成某些任务后，想返回到应用“ A”，为什么它总是转到活动“ A1”而不是“ A2”，而应用“ B”的意图是从。我希望它返回到呼叫者意图而不是第一意图。

有人知道诀窍吗？

我的代码如下所示：

def index
  @leave = Leave.new # as you have added it, won't affect what we want to achieve.
  #if params have status then only you've to show 
  #the selected ones otherwise you'll be showing all 
  #of them. right?
  if params[:status].present?
    @leaves = Leave.where(status: params[:status])
    #dont use find_by it will return only one record instead of array.
  else
    @leaves = Leave.includes(:user).order(created_at: :desc)
  end
end


<%= form_tag(url: admin_leaves_path, method: :get) do %>
  <div class="input-group">
    #Leave.approved will hit database from view. which is not recommended 
    #instead of that try using values which will be accessed in controller
    #via params and then you can perform actions according to it.
    <%= select_tag :status, options_for_select([['Approved', true], ['Pending', false]]) %>
    <%= submit_tag 'Filter' %>
  </div>
<% end %>

请帮助我解决问题，非常感谢您的帮助。

Answer 1

因为您正在完成活动A2：

Intent LaunchIntent = getPackageManager().getLaunchIntentForPackage("com.xx.yyyy");
if (LaunchIntent != null) {
    startActivity(LaunchIntent);
    finish(); // HERE... You are finishing A2
}

只需删除finish();

打开另一个应用程序的意图（getLaunchIntentForPackage（））总是返回到第一个活动

1 个答案: