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  <h1>自动加载框</h1>

<p>Net支持发起请求开始时显示加载框, 请求结束时隐藏加载框(无论成败)</p>
<h2 id="_1">自动显示<a class="headerlink" href="#_1" title="Permanent link">&para;</a></h2>
<div class="language-kotlin highlight"><pre><span></span><code><span id="__span-0-1"><a id="__codelineno-0-1" name="__codelineno-0-1" href="#__codelineno-0-1"></a><span class="hll"><span class="n">scopeDialog</span><span class="w"> </span><span class="p">{</span>
</span></span><span id="__span-0-2"><a id="__codelineno-0-2" name="__codelineno-0-2" href="#__codelineno-0-2"></a><span class="w">    </span><span class="n">tv</span><span class="p">.</span><span class="na">text</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Post</span><span class="o">&lt;</span><span class="kt">String</span><span class="o">&gt;</span><span class="p">(</span><span class="n">Api</span><span class="p">.</span><span class="na">PATH</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
</span><span id="__span-0-3"><a id="__codelineno-0-3" name="__codelineno-0-3" href="#__codelineno-0-3"></a><span class="w">        </span><span class="n">param</span><span class="p">(</span><span class="s">&quot;username&quot;</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;用户名&quot;</span><span class="p">)</span><span class="w"> </span><span class="c1">// 请求参数</span>
</span><span id="__span-0-4"><a id="__codelineno-0-4" name="__codelineno-0-4" href="#__codelineno-0-4"></a><span class="w">        </span><span class="n">param</span><span class="p">(</span><span class="s">&quot;pwd&quot;</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;123456&quot;</span><span class="p">)</span>
</span><span id="__span-0-5"><a id="__codelineno-0-5" name="__codelineno-0-5" href="#__codelineno-0-5"></a><span class="w">    </span><span class="p">}.</span><span class="na">await</span><span class="p">()</span>
</span><span id="__span-0-6"><a id="__codelineno-0-6" name="__codelineno-0-6" href="#__codelineno-0-6"></a><span class="p">}</span>
</span></code></pre></div>
<p><br></p>
<p>默认是原生加载框(MaterialDesign Dialog), 可自定义</p>
<p><img src="https://i.loli.net/2021/08/14/JqIenA56F1cgyHs.png" width="250"/></p>
<h2 id="_2">单例自定义<a class="headerlink" href="#_2" title="Permanent link">&para;</a></h2>
<p>指定当前请求加载框</p>
<div class="language-kotlin highlight"><pre><span></span><code><span id="__span-1-1"><a id="__codelineno-1-1" name="__codelineno-1-1" href="#__codelineno-1-1"></a><span class="kd">val</span><span class="w"> </span><span class="nv">dialog</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">BubbleDialog</span><span class="p">(</span><span class="n">requireActivity</span><span class="p">(),</span><span class="w"> </span><span class="s">&quot;加载中&quot;</span><span class="p">)</span>
</span><span id="__span-1-2"><a id="__codelineno-1-2" name="__codelineno-1-2" href="#__codelineno-1-2"></a>
</span><span id="__span-1-3"><a id="__codelineno-1-3" name="__codelineno-1-3" href="#__codelineno-1-3"></a><span class="n">scopeDialog</span><span class="p">(</span><span class="n">dialog</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
</span><span id="__span-1-4"><a id="__codelineno-1-4" name="__codelineno-1-4" href="#__codelineno-1-4"></a><span class="w">    </span><span class="n">tv</span><span class="p">.</span><span class="na">text</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Post</span><span class="o">&lt;</span><span class="kt">String</span><span class="o">&gt;</span><span class="p">(</span><span class="n">Api</span><span class="p">.</span><span class="na">PATH</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
</span><span id="__span-1-5"><a id="__codelineno-1-5" name="__codelineno-1-5" href="#__codelineno-1-5"></a><span class="w">        </span><span class="n">param</span><span class="p">(</span><span class="s">&quot;username&quot;</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;用户名&quot;</span><span class="p">)</span>
</span><span id="__span-1-6"><a id="__codelineno-1-6" name="__codelineno-1-6" href="#__codelineno-1-6"></a><span class="w">        </span><span class="n">param</span><span class="p">(</span><span class="s">&quot;pwd&quot;</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;123456&quot;</span><span class="p">)</span>
</span><span id="__span-1-7"><a id="__codelineno-1-7" name="__codelineno-1-7" href="#__codelineno-1-7"></a><span class="w">    </span><span class="p">}.</span><span class="na">await</span><span class="p">()</span>
</span><span id="__span-1-8"><a id="__codelineno-1-8" name="__codelineno-1-8" href="#__codelineno-1-8"></a><span class="p">}</span>
</span></code></pre></div>
<p><img src="https://i.loli.net/2021/08/14/8eDp7Oz2CQT9Jcq.gif" width="250"/></p>
<div class="admonition quote">
<p class="admonition-title">菊花加载对话框</p>
<p>示例使用的iOS风格对话框: <a href="https://liangjingkanji.github.io/Tooltip/bubble.html">BubbleDialog</a></p>
</div>
<h2 id="_3">全局自定义<a class="headerlink" href="#_3" title="Permanent link">&para;</a></h2>
<p>初始化时指定加载对话框构造器<code>NetDialogFactory</code></p>
<div class="language-kotlin highlight"><pre><span></span><code><span id="__span-2-1"><a id="__codelineno-2-1" name="__codelineno-2-1" href="#__codelineno-2-1"></a><span class="n">NetConfig</span><span class="p">.</span><span class="na">initialize</span><span class="p">(</span><span class="n">Api</span><span class="p">.</span><span class="na">HOST</span><span class="p">,</span><span class="w"> </span><span class="k">this</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
</span><span id="__span-2-2"><a id="__codelineno-2-2" name="__codelineno-2-2" href="#__codelineno-2-2"></a><span class="w">        </span><span class="n">setDialogFactory</span><span class="w"> </span><span class="p">{</span>
</span><span id="__span-2-3"><a id="__codelineno-2-3" name="__codelineno-2-3" href="#__codelineno-2-3"></a><span class="w">            </span><span class="n">ProgressDialog</span><span class="p">(</span><span class="nb">it</span><span class="p">).</span><span class="na">apply</span><span class="w"> </span><span class="p">{</span>
</span><span id="__span-2-4"><a id="__codelineno-2-4" name="__codelineno-2-4" href="#__codelineno-2-4"></a><span class="w">                </span><span class="n">setMessage</span><span class="p">(</span><span class="s">&quot;我是全局自定义的加载对话框...&quot;</span><span class="p">)</span>
</span><span id="__span-2-5"><a id="__codelineno-2-5" name="__codelineno-2-5" href="#__codelineno-2-5"></a><span class="w">            </span><span class="p">}</span>
</span><span id="__span-2-6"><a id="__codelineno-2-6" name="__codelineno-2-6" href="#__codelineno-2-6"></a><span class="w">        </span><span class="p">}</span>
</span><span id="__span-2-7"><a id="__codelineno-2-7" name="__codelineno-2-7" href="#__codelineno-2-7"></a><span class="p">}</span>
</span></code></pre></div>
<p>如仅修改加载对话框文本, 在项目<code>values</code>目录的strings.xml添加以下</p>
<div class="language-xml highlight"><pre><span></span><code><span id="__span-3-1"><a id="__codelineno-3-1" name="__codelineno-3-1" href="#__codelineno-3-1"></a><span class="cm">&lt;!--对话框--&gt;</span>
</span><span id="__span-3-2"><a id="__codelineno-3-2" name="__codelineno-3-2" href="#__codelineno-3-2"></a><span class="nt">&lt;string</span><span class="w"> </span><span class="na">name=</span><span class="s">&quot;net_dialog_msg&quot;</span><span class="nt">&gt;</span>加载中<span class="nt">&lt;/string&gt;</span>
</span></code></pre></div>
<div class="admonition question">
<p class="admonition-title">自定义的加载框不是Dialog</p>
<p>由于<code>scopeDialog</code>只能指定Dialog类型, 因此只能手动实现<code>Dialog</code>接口</p>
<p>仅要求复写 <a href="https://github.com/liangjingkanji/Net/blob/2abf07e1d003ef44574278fd2010f3375225d964/net/src/main/java/com/drake/net/scope/DialogCoroutineScope.kt#L47">DialogCoroutineScope</a> 内调用的<code>Dialog</code>方法</p>
</div>
<h2 id="_4">生命周期<a class="headerlink" href="#_4" title="Permanent link">&para;</a></h2>
<p>使用<code>scopeDialog</code>发起请求后, 分为三个生命周期</p>
<table>
<thead>
<tr>
<th>加载框状态</th>
<th>作用域</th>
</tr>
</thead>
<tbody>
<tr>
<td>显示</td>
<td>执行<code>scopeDialog</code>时显示加载框</td>
</tr>
<tr>
<td>隐藏</td>
<td>作用域内任务结束时隐藏加载框</td>
</tr>
<tr>
<td>手动取消</td>
<td>取消作用域内所有网络请求</td>
</tr>
</tbody>
</table>


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