Android Custom Loadpager page, no need to worry about duplicate code

On the internet for a long time, have not found their own desired results, so I wrote a, and put it on GitHub, like friends can go to download source to see. First on the code

Public abstract class Loadpager extends Framelayout {public static final int state_unkown = 0;    public static final int state_loading = 1;    public static final int state_error = 2;    public static final int state_empty = 3;    public static final int state_success = 4;    public int state = State_unkown; Private view loadingview;//Loading interface Private View errorview;//Error interface private view emptyview;//empty interface private View SUCC    essview;//loading Successful interface private Context Mcontext;        Public Loadpager (Context context) {super (context);        Mcontext = context;    Init ();        } public Loadpager (context context, AttributeSet attrs, int defstyle) {Super (context, attrs, Defstyle);        Mcontext = context;    Init ();        } public Loadpager (context context, AttributeSet Attrs) {Super (context, attrs);        Mcontext = context;    Init (); } private void Init () {Loadingview = Createloadingview ();//created interface in load if (Loadingview! = null) {This.addview (Loadingview, New Framelayout.layoutparams (layoutparams.match_parent        , layoutparams.match_parent)); } Errorview = Createerrorview ();                    Load Error interface if (Errorview! = null) {This.addview (Errorview, New Framelayout.layoutparams (        Layoutparams.match_parent, layoutparams.match_parent)); } Emptyview = Createemptyview ();                    Loads an empty interface if (Emptyview! = null) {This.addview (Emptyview, New Framelayout.layoutparams (        Layoutparams.match_parent, layoutparams.match_parent));        } showpage (state_loading);//Display different interface according to different status}//Display different interface according to different status public void showpage (int result) {        state = result; if (Loadingview! = null) {loadingview.setvisibility (state = = State_unkown | | state = = STATE _loading?        View.VISIBLE:View.INVISIBLE); } if (Errorview! = null) {Errorview.setvisibility (state = = State_error?)        View.VISIBLE:View.INVISIBLE); } if (Emptyview! = null) {emptyview.setvisibility (state = = State_empty?)        View.VISIBLE:View.INVISIBLE); if (state = = state_success) {if (Successview = = null) {Successview = Createsuccessvie                W (); This.addview (Successview, New Framelayout.layoutparams (Layoutparams.match_parent, Layoutparams.mat            Ch_parent));        } successview.setvisibility (view.visible);            } else {if (Successview! = null) {successview.setvisibility (view.invisible); }}/* created an empty interface */private View Createemptyview () {return view.inflate (Mcontext, R.layout.loadpag    E_empty, NULL);                }/* created the error interface */private View Createerrorview () {View view = View.inflate (Mcontext, R.layout.loadpage_error, NULL);       Button PAGE_BT = (button) View.findviewbyid (R.ID.PAGE_BT);                Page_bt.setonclicklistener (New Onclicklistener () {@Override public void OnClick (View v) {            Show ();        }        });    return view; }/* Create interface in Load */private View Createloadingview () {return view.inflate (Mcontext, R.layout.loa    Dpage_loading, NULL); }//Depending on the server's data switchover status public void show () {if (state = = State_error | | state = = state_empty) {state        = state_loading;        } load ();    ShowPage (state);    }/*** * Create a successful interface */public abstract View Createsuccessview (); /** * Request Server * Must call the ShowPage method after the request is completed */protected abstract void Load ();}

The above comments are written very clearly, if you do not know this kind of friends please leave a message below, see I will reply to you.

The following shows how to use Loadpager in a base class so that we can write a lot less code later.

<pre name= "code" class= "Java" >public abstract class Basefragment extends fragment{protected Loadpager Mloadpager    = NULL; protected Context Mcontext = getactivity () = = null?    App.getinstance (): Getactivity ();    protected ViewGroup Mcontainer;    protected Layoutinflater Minflater; @Nullable @Override public View oncreateview (Layoutinflater inflater, @Nullable viewgroup container, @Nullable Bundl        E savedinstancestate) {mcontainer = container;        Minflater = Inflater; if (Mloadpager = = null) {Mloadpager = new Loadpager (mcontext) {@Override public                View Createsuccessview () {return BaseFragment.this.createSuccessView ();                } @Override protected void Load () {BaseFragment.this.loadData ();        }            };    } return Mloadpager; } @Override public void onactivitycreated (@Nullable Bundle SavedinstaNcestate) {super.onactivitycreated (savedinstancestate);    Show ();        public void Show () {if (mloadpager!=null) {mloadpager.show ();    }}/** * must call the Checkdata method after acquiring the data * */protected abstract void loaddata ();    Protected abstract View Createsuccessview (); /** CHECKSUM data */protected void Checkdata (Object datas) {if (datas==null) {mloadpager.showpage (loadpager.st ATE_ERROR)///Request Server failed}else{try {@SuppressWarnings ("unchecked") list<object> DS                = (list<object>) datas;                if (Ds.size () ==0) {mloadpager.showpage (loadpager.state_empty);                }else{mloadpager.showpage (loadpager.state_success);                }} catch (Exception e) {e.printstacktrace ();                if ("". Equals (Datas)) {mloadpager.showpage (loadpager.state_empty);                   }else{ Mloadpager.showpage (loadpager.state_success); }            }        }    }}

 below to see how we use 
 in subclasses 

</pre><pre code_snippet_id= "1677905" snippet_file_name= "blog_20160510_8_2136022" name= "code" class= "Java"     ><pre name= "code" class= "Java" >public class Errorfragment extends Basefragment {private String str = "loaded successfully"; @Override protected void LoadData () {New Thread (new Runnable () {@Override public voi                    D run () {try {thread.sleep (3000);  App.getmainthreadhandler (). Post (new Runnable () {@Override public void run ()                        {checkdata (NULL);                }                    });                } catch (Interruptedexception e) {e.printstacktrace ();    }}). Start ();        } @Override protected View Createsuccessview () {TextView TV = new TextView (mcontext); Tv.setlayoutparams (New Linearlayout.layoutparams (LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.MATCH_PARENT));        Tv.settext (str);    return TV; }}

Threads are used here to simulate the time-consuming operation of requesting data in the network.

OK, basically this is the case, if your code is not good enough, there is any good idea can give me a message or add me QQ347402035, please fill in the reason, otherwise you may add failure.

Android Custom Loadpager page, no need to worry about duplicate code