我要评论效果图如下所示：
1、在adapter中加入如下代码
<pre style="background-color:#2b2b2b;color:#a9b7c6;font-family:'ocr a std';font-size:10.2pt;"><span style="color:#cc7832;">private int </span><span style="color:#9876aa;">clicktemp </span>= -<span style="color:#6897bb;">1</span><span style="color:#cc7832;">;</span><span style="color:#808080;">//</span><span style="color:#a8c023;"><em>todo </em></span><span style="color:#a8c023;font-family:'宋体';"><em>被选择的</em></span><span style="color:#a8c023;"><em>item</em></span><span style="color:#a8c023;font-family:'宋体';"><em>下标</em></span></pre><p></p>
<pre style="background-color:#2b2b2b; color:#a9b7c6; font-family:'ocr a std'; font-size:10.2pt"><span style="color:#629755"><em>/**
</em></span><span style="color:#629755"><em> * </em></span><span style="color:#a8c023"><em>todo </em></span><span style="color:#a8c023; font-family:'宋体'"><em>传入下标，设置被选择的</em></span><span style="color:#a8c023"><em>item
</em></span><span style="color:#a8c023"><em> </em></span><span style="color:#629755"><em>*
</em></span><span style="color:#629755"><em> * </em></span><span style="color:#629755"><strong><em>@param </em></strong></span><span style="color:#8a653b"><em>position
</em></span><span style="color:#8a653b"><em> </em></span><span style="color:#629755"><em>*/
</em></span><span style="color:#cc7832">public void </span><span style="color:#ffc66d">setselection</span>(<span style="color:#cc7832">int </span>position) {
<span style="color:#9876aa">clicktemp </span>= position<span style="color:#cc7832">;
</span>}</pre>
<br>
<pre></pre>
2、在adapter的getview方法中加入如下代码
<p></p>
<p></p><pre name="code" class="java"><pre style="background-color:#2b2b2b;color:#a9b7c6;font-family:'ocr a std';font-size:10.2pt;"><span style="color:#808080;">//</span><span style="color:#a8c023;"><em>todo </em></span><span style="color:#a8c023;font-family:'宋体';"><em>点击改变</em></span><span style="color:#a8c023;"><em>item</em></span><span style="color:#a8c023;font-family:'宋体';"><em>底部控件状态
</em></span><span style="color:#cc7832;">if </span>(<span style="color:#9876aa;">clicktemp </span>== position) {<span style="color:#808080;">//</span><span style="color:#a8c023;"><em>todo </em></span><span style="color:#a8c023;font-family:'宋体';"><em>选中的</em></span><span style="color:#a8c023;"><em>item</em></span><span style="color:#a8c023;font-family:'宋体';"><em>显示底部控件
</em></span><span style="color:#a8c023;font-family:'宋体';"><em> </em></span>typeholder.<span style="color:#9876aa;">item_gv_viewbottom</span>.setvisibility(view.<span style="color:#9876aa;"><em>visible</em></span>)<span style="color:#cc7832;">;
</span>} <span style="color:#cc7832;">else </span>{<span style="color:#808080;">//</span><span style="color:#a8c023;"><em>todo </em></span><span style="color:#a8c023;font-family:'宋体';"><em>未选中的</em></span><span style="color:#a8c023;"><em>item</em></span><span style="color:#a8c023;font-family:'宋体';"><em>隐藏底部控件
</em></span><span style="color:#a8c023;font-family:'宋体';"><em> </em></span>typeholder.<span style="color:#9876aa;">item_gv_viewbottom</span>.setvisibility(view.<span style="color:#9876aa;"><em>invisible</em></span>)<span style="color:#cc7832;">;
</span>}</pre><p></p>
<pre></pre>
3、修改onitemclicklistener代码<br>
<pre name="code" class="java"><pre style="background-color:#2b2b2b;color:#a9b7c6;font-family:'ocr a std';font-size:10.2pt;"><span style="color:#629755;"><em>/**
</em></span><span style="color:#629755;"><em> * item</em></span><span style="color:#629755;font-family:'宋体';"><em>点击事件
</em></span><span style="color:#629755;font-family:'宋体';"><em> </em></span><span style="color:#629755;"><em>*/
</em></span>adapterview.onitemclicklistener <span style="color:#9876aa;">mitemclicklistener </span>= <span style="color:#cc7832;">new </span>adapterview.onitemclicklistener() {
<span style="color:#bbb529;">@override
</span><span style="color:#bbb529;"> </span><span style="color:#cc7832;">public void </span><span style="color:#ffc66d;">onitemclick</span>(adapterview<?> parent<span style="color:#cc7832;">, </span>view view<span style="color:#cc7832;">, int </span>position<span style="color:#cc7832;">, long </span>id) {
<span style="color:#9876aa;">mygridviewadapter</span>.setselection(position)<span style="color:#cc7832;">;</span><span style="color:#808080;">//</span><span style="color:#a8c023;"><em>todo </em></span><span style="color:#a8c023;font-family:'宋体';"><em>传入当前点击</em></span><span style="color:#a8c023;"><em>item</em></span><span style="color:#a8c023;font-family:'宋体';"><em>的下标
</em></span><span style="color:#a8c023;font-family:'宋体';"><em> </em></span><span style="color:#9876aa;">mygridviewadapter</span>.notifydatasetchanged()<span style="color:#cc7832;">;</span><span style="color:#808080;">//</span><span style="color:#a8c023;"><em>todo </em></span><span style="color:#a8c023;font-family:'宋体';"><em>刷新</em></span><span style="color:#a8c023;"><em>adapter
</em></span><span style="color:#a8c023;"><em> </em></span>}
}<span style="color:#cc7832;">;</span></pre>
<pre></pre>
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<p></p>
<p><br>
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</p>
</pre></pre>
以上所述是小编给大家介绍的android实现腾讯新闻的新闻类别导航效果，希望对大家有所帮助
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