android-tabhost

问题 I have a tabhost with three activities and I want to save the pressed state of the buttons of each activity So now How can I save the pressed state of each button in all three child activities so that when I move from one activity to the other the button pressed state will be reflected on moving back. first activity -> all 4 buttons pressed -> go to 2nd activity -> come back to first activity -> all buttons in first activity should be in pressed state When I go to second child tab and come to

问题 In my app i have a tabhost controller with 5 tabs, tabs 1-4 are webviews with url's ending in id?=, i have it set up for the value after id?= to default to 2, however whenever someone types in a different number in tab 5 and presses the button I want that button to reload all of the webviews with the new value they put in, this is my code and i honestly have no idea what I'm doing wrong anymore, is the do I need extra code to make the webviews reload after the button is pressed? -edit for

问题 Just wondering if I could gather some constructive comments. Well, I am developing a tabbed application with activity group for each tab and related child activities. One of the activities handles a file downloader- waits for the download link from the server, once received download begins in the background. On completion, the file (mostly PDF) opens up in a generic viewer. This part works exceptionally well. Now, coming to app requirement, I want the activity to run in background. When the

问题 Hello I am developing an application Which requires to add Run Time tabs in the android And all the tabs should add dynamically. My Requirement is: I want to add Tabhost with 5 tabs Which Should display the Screen. But some Time it require only 3 tabs in the screen then design should not change. Same if I want to add more then 5 tabs then tab should scroll Run time The main Thing is Design should not change. Can any one tell me How can i do that? Currently I am using Following Code: public

问题 I'm trying to make a ViewPager that slides between fragments and a custom slidebar, that shows which page is selected. Should be like this: I don't want to display tab titles, only the bar itself. How can i do this? 回答1: You can do this by following a trick. Like as, First remove your all title from tab then make same color your layout and tablayout background. 回答2: you can use ViewPager with CircleIndicator - can be customized. in gradle: compile 'me.relex:circleindicator:1.1.8@aar' you can

问题 I have tabhost contains two tabs (each is an activity): "Add New Data" and "My Data". The default tab shown first is the "Add New Data" since it is the #1 tab. To access both tabs, I have to be logged in first. What I want to achieve is I want to pass the value of "Username" textfield in Login activity onto the "My Data" (2nd tab) tab. I'm quite bewildered since I have to click the tab "My Data" to open it and I have no idea on how to pass a textfield value from a Login class to the tab ("My

问题 I am working to create a TabHost at bottom of the screen using only java code. I am in a condition that I cant use xml layouts .Can someone expert in dynamic layouts could help me? 回答1: You can do this by providing alignParent rule for parent RelativeLayout , if you have one. You can do this by providing correct order if your parent is LinearLayout DO NOT use bottom tabs. Read design guides first. 来源： https://stackoverflow.com/questions/9141019/how-to-set-a-tabhost-at-bottom-of-the-screen

问题 I have three tabs and each one extends Activity and implements View.OnClickListener When I selected some tab and click on a button, the OnClickListener implemented into SomeTabActivity doesn't work. Why? What I need to do to create my activity? Every time that I select some tab I need start new activity? My code: //the main activity public class TripoidActivity extends TabActivity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView

问题 For example, i have 3 activities.. I also use Tab host with separate activity when switch tab widget. 1) FoodTypeListActivity.class :there is a list of food type i.e. Breakfast, Dinner, Lunch.. 2) MainTabActivity.class : Tabhost which has 3 tab widget 3) FoodListActivity.class : this activity is one of tab widget I have a headlabel in layout of MainTabActivity.class which will show type of food as Textview from the previous activity( FoodTypeListActivity.class ) The problem is; i want to send

问题 I'm developing an app which contain TabHost ,in one of those tabs i have an ActivityGroup , and from this ActivityGroup , i launch another SubActivity ( let's say that i Launch an Activity A ), and until this , everything is OK. The problem is when i press the BackButton ,the CurrentActivity( Activity A ) is destroyed, but the ParentActivity( The ActivityGroup ) is not resumed , and the app show just a null Window with the Title of My App ( " My Application Title " ) . The Code to launch the