复用代码，接口扩展（自定义poupwindow）_android 接口复用-优快云博客

本文链接：https://blog.youkuaiyun.com/zxq_android/article/details/52573373

本文介绍了一种基于抽象接口的弹窗组件设计方法，通过定义IFillView接口和IBroadcast接口实现弹窗的显示与交互。具体实现包括PoupFillView基类及PoupWebView扩展类，并展示了如何在实际应用中进行调用。

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1：效果图

2：代码复用部分，以及用来耦合的抽象接口

抽象接口：

publicinterface IFillView //接口，暴露的抽象规则；

{

View getView();

void setBroadCast(IBroadcast iBroadcast);

}

public interface IBroadcast// 回调接口，用于类之间的异步交互
{
void setTag(Object type);

void close();

}

复用代码

public abstractclass PoupFillView extendsPopupWindow implements IBroadcast
{
    private Activityact;
    private int width,height;
    private IFillViewiFillView;

    public PoupFillView(Activityact,IFillView iFillView)
    {
        super(act);
        this.act=act;
        this.iFillView=iFillView;
        height=act.getWindowManager().getDefaultDisplay().getHeight();
        width=act.getWindowManager().getDefaultDisplay().getWidth();
    }

    public void initPoupView()
    {
        setContentView(iFillView.getView());
        iFillView.setBroadCast(this);

        setFocusable(true);
        setTouchable(true);
        setHeight(height);
        setWidth(width);
        setAnimationStyle(R.style.PopumAnimation);

    }

    @Override
    public void close()
    {
      dismiss();
    }

}

3：扩展部分（只需实现IFillView接口即可）

public class PoupWebView implements IFillView
{
    private Context context ;

    public PoupWebView(Context context)
    {
        this . context =context;
        initView();
        initInfo();
        initBinder();
    }

    private View contentView ;

    private TextView tvOk ;
    private TextView tvNo ;
    private WebView webView ;

    private void initView()
    {
        contentView = LayoutInflater.from( context ).inflate(R.layout. poup_webview , null );
        tvOk = (TextView) contentView .findViewById(R.id. poup_ok );
        tvNo = (TextView) contentView .findViewById(R.id. poup_no );
        webView = (WebView) contentView .findViewById(R.id. poup_web );

    }

    private String url ;
   private void initInfo()
    {
        url = "http://mt.sohu.com/20150923/n421957484.shtml" ;
    }

    private void initBinder()
    {
        webView .loadUrl( url );

        tvOk .setOnClickListener( new View.OnClickListener() {
            @Override
             public void onClick(View v) {
                iBroadcast .setTag( false );
                iBroadcast .close();
            }
        });
        tvNo .setOnClickListener( new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                iBroadcast .setTag( true );
                iBroadcast .close();
            }
        });

    }

    @Override
    public View getView() {
        return contentView ;
    }

    private IBroadcast iBroadcast ;

    @Override
    public void setBroadCast(IBroadcast iBroadcast)
    {
       this . iBroadcast =iBroadcast;

    }
4 ，调用使用
final PoupFillView poupFillView= new PoupFillView(getActivity(), new PoupWebView(getActivity())) {
    @Override
    public void setTag(Object type) {
        Boolean logic= (Boolean) type;
        if (!logic)
        {
            getActivity().finish();
        }

    }
};
poupFillView .showAtLocation( convertView , Gravity. CENTER , 0 , 0 );

}