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class="sidebar-link">globalEvent</a></li><li><a href="/docs/modules/meta.html" class="sidebar-link">meta</a></li><li><a href="/docs/modules/modal.html" class="sidebar-link">modal</a></li><li><a href="/docs/modules/navigator.html" class="sidebar-link">navigator</a></li><li><a href="/docs/modules/picker.html" class="sidebar-link">picker</a></li><li><a href="/docs/modules/storage.html" class="sidebar-link">storage</a></li><li><a href="/docs/modules/stream.html" class="sidebar-link">stream</a></li><li><a href="/docs/modules/webview.html" class="sidebar-link">webview</a></li><li><a href="/docs/modules/websockets.html" class="sidebar-link">webSockets</a></li><li><a href="/docs/modules/deviceInfo.html" class="sidebar-link">deviceInfo</a></li><li><a href="/docs/modules/console-log.html" class="sidebar-link">console-log</a></li></ul></div></li><li><div class="sidebar-group"><p class="sidebar-heading"><span>Styles</span><!----></p><ul class="sidebar-group-items"><li><a 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event</a></li><li class="sidebar-sub-header"><a href="/docs/events/common-events.html#longpress-event" class="sidebar-link">Longpress event</a></li><li class="sidebar-sub-header"><a href="/docs/events/common-events.html#appear-event" class="sidebar-link">Appear event</a></li><li class="sidebar-sub-header"><a href="/docs/events/common-events.html#disappear-event" class="sidebar-link">Disappear event</a></li><li class="sidebar-sub-header"><a href="/docs/events/common-events.html#stoppropagation" class="sidebar-link">stopPropagation</a></li><li class="sidebar-sub-header"><a href="/docs/events/common-events.html#page-event" class="sidebar-link">Page event</a></li><li class="sidebar-sub-header"><a href="/docs/events/common-events.html#example-2" class="sidebar-link">Example</a></li></ul></li><li><a href="/docs/events/event-bubbling.html" class="sidebar-link">Event Bubble</a></li><li><a href="/docs/events/gesture.html" class="sidebar-link">Gesture</a></li></ul></div></li></ul></div><div class="page"><div class="content"><p>Weex provide the ability to let events trigger action, like starting a JavaScript when a user click on a component. Below are the common event attributes that can be added to weex components to define event actions.</p><h2 id="event-penetration"><a href="#event-penetration" class="header-anchor">#</a> Event penetration</h2><p>**Notes: ** The principle of native event delivery under <code>Android</code> and <code>iOS</code> is different, only for <code>iOS</code> here.</p><p>When a parent view has multiple peer views, iOS will select the highest level View to respond to the event, and the underlying view event will never be responded.</p><p>Weex add attribute <code>eventPenetrationEnabled</code> to <code><div></code> component. When the value is <code>true</code>(default would be <code>false</code>), the view's children views still respond to the event normally, while the view itself will not respond to the event, but pass the event to the lower level View.</p><p><a href="http://dotwe.org/vue/5d8bc374a939e135374be18fa08608dd" target="_blank" rel="noopener noreferrer">Event penetration<svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg></a></p><h2 id="view-interactivity"><a href="#view-interactivity" class="header-anchor">#</a> View interactivity</h2><p>Weex add attribute <code>userInteractionEnabled</code> to <code><div></code> component. When the value is <code>false</code>(default would be <code>true</code>), neither the view nor its children views respond to the event. The event is passed to the lower layer View.</p><h2 id="click-event"><a href="#click-event" class="header-anchor">#</a> Click event</h2><p>The onclick attribute fires on a click gesture on the element. |
| **Notes: ** The <code>input</code> and <code>switch</code> component does not currently support the <code>click</code> event, please use <code>change</code> or <code>input</code> event instead.</p><h3 id="event-object"><a href="#event-object" class="header-anchor">#</a> event object</h3><ul><li><code>type</code> : <code>click</code></li><li><code>target</code> : The target component where the event is triggered</li><li><code>timestamp</code> : Timestamp when event is triggered</li></ul><h2 id="longpress-event"><a href="#longpress-event" class="header-anchor">#</a> Longpress event</h2><p>If a <code>longpress</code> event is bound to a component, the event will be triggered when user long press on it. |
| **Notes: ** The <code>input</code> and <code>switch</code> component does not currently support the <code>click</code> event, please use <code>change</code> or <code>input</code> event instead.</p><h3 id="event-object-2"><a href="#event-object-2" class="header-anchor">#</a> event object</h3><ul><li><code>type</code> : <code>longpress</code></li><li><code>target</code> : The target component where the event is triggered</li><li><code>timestamp</code> : Timestamp when event is triggered</li></ul><h2 id="appear-event"><a href="#appear-event" class="header-anchor">#</a> Appear event</h2><p>If a appear event is bound to a component inside a scrollable container, the event will be triggered when the component comes to be visible.</p><h3 id="event-object-3"><a href="#event-object-3" class="header-anchor">#</a> event object</h3><ul><li><code>type</code> : <code>appear</code></li><li><code>target</code> : The target component where the event is triggered</li><li><code>timestamp</code> : Timestamp when event is triggered</li><li><code>direction</code> : The direction in which the scroller is scrolling. Could be <code>up</code> or <code>down</code>.</li></ul><h2 id="disappear-event"><a href="#disappear-event" class="header-anchor">#</a> Disappear event</h2><p>If a <code>disappear</code> event is bound to a component inside a scrollable container, the event will be triggered when the component scrolls out of viewport and disappears from your sight.</p><h3 id="event-object-4"><a href="#event-object-4" class="header-anchor">#</a> event object</h3><ul><li><code>type</code> : <code>disappear</code></li><li><code>target</code> : The target component where the event is triggered</li><li><code>timestamp</code> : Timestamp when event is triggered</li><li><code>direction</code> : The direction in which the scroller is scrolling. Could be <code>up</code> or <code>down</code>.</li></ul><h2 id="stoppropagation"><a href="#stoppropagation" class="header-anchor">#</a> stopPropagation</h2><p>when you want to handler list in list, scroller in list which has touch conflict touch scene. you can use this to control touch dispatch. |
| together with the following attr to achive smooth nest scroll.</p><p>shouldStopPropagationInitResult : default true/false,</p><p>shouldStopPropagationInterval : control touch call frequency with js. reduce js call with native.</p><h3 id="example"><a href="#example" class="header-anchor">#</a> Example</h3><p><a href="http://dotwe.org/vue/48ddb2f7339d1fb116135900a2dbc8e5" target="_blank" rel="noopener noreferrer">Scroller With List<svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg></a></p><h2 id="page-event"><a href="#page-event" class="header-anchor">#</a> Page event</h2><p>Weex provides you with simple management of page status, such as <code>viewappear</code> and <code>viewdisappear</code>. |
| The <code>viewappear</code> event will be triggered when page is about to show or before any animations are configured for showing. For example, when calling <code>push</code> method in <code>navigator</code> module, this event will be trigged in new page. |
| The <code>viewdisappear</code> event will be triggeded when page is about to dismiss. |
| Different from <code>appear</code> and <code>disappear</code> of component, these two events focus on the status of whole page, so <strong>they must be bound to the root component</strong>. |
| In addititon, these events also can be bound to body component which is not root actually such as <code>wxc-navpage</code>.</p><h3 id="event-object-5"><a href="#event-object-5" class="header-anchor">#</a> event object</h3><ul><li><code>type</code> : <code>viewappear</code> or <code>viewdisappear</code></li><li><code>target</code> : The target component where the event is triggered</li><li><code>timestamp</code> : Timestamp when event is triggered</li></ul><h2 id="example-2"><a href="#example-2" class="header-anchor">#</a> Example</h2><div class="language-html extra-class"><pre class="language-html"><code><span class="token tag"><span class="token tag"><span class="token punctuation"><</span>template</span><span class="token punctuation">></span></span> |
| <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>div</span><span class="token punctuation">></span></span> |
| <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>div</span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>box<span class="token punctuation">"</span></span> <span class="token attr-name">@click</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>onclick<span class="token punctuation">"</span></span> <span class="token attr-name">@longpress</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>onlongpress<span class="token punctuation">"</span></span> <span class="token attr-name">@appear</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>onappear<span class="token punctuation">"</span></span> <span class="token attr-name">@disappear</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>ondisappear<span class="token punctuation">"</span></span><span class="token punctuation">></span></span><span class="token tag"><span class="token tag"><span class="token punctuation"></</span>div</span><span class="token punctuation">></span></span> |
| <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>div</span><span class="token punctuation">></span></span> |
| <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>template</span><span class="token punctuation">></span></span> |
| |
| <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>script</span><span class="token punctuation">></span></span><span class="token script"><span class="token language-javascript"> |
| <span class="token keyword">const</span> modal <span class="token operator">=</span> weex<span class="token punctuation">.</span><span class="token function">requireModule</span><span class="token punctuation">(</span><span class="token string">'modal'</span><span class="token punctuation">)</span> |
| <span class="token keyword">export</span> <span class="token keyword">default</span> <span class="token punctuation">{</span> |
| methods<span class="token punctuation">:</span> <span class="token punctuation">{</span> |
| <span class="token function">onclick</span> <span class="token punctuation">(</span><span class="token parameter">event</span><span class="token punctuation">)</span> <span class="token punctuation">{</span> |
| console<span class="token punctuation">.</span><span class="token function">log</span><span class="token punctuation">(</span><span class="token string">'onclick:'</span><span class="token punctuation">,</span> event<span class="token punctuation">)</span> |
| modal<span class="token punctuation">.</span><span class="token function">toast</span><span class="token punctuation">(</span><span class="token punctuation">{</span> |
| message<span class="token punctuation">:</span> <span class="token string">'onclick'</span><span class="token punctuation">,</span> |
| duration<span class="token punctuation">:</span> <span class="token number">0.8</span> |
| <span class="token punctuation">}</span><span class="token punctuation">)</span> |
| <span class="token punctuation">}</span><span class="token punctuation">,</span> |
| <span class="token function">onlongpress</span> <span class="token punctuation">(</span><span class="token parameter">event</span><span class="token punctuation">)</span> <span class="token punctuation">{</span> |
| console<span class="token punctuation">.</span><span class="token function">log</span><span class="token punctuation">(</span><span class="token string">'onlongpress:'</span><span class="token punctuation">,</span> event<span class="token punctuation">)</span> |
| modal<span class="token punctuation">.</span><span class="token function">toast</span><span class="token punctuation">(</span><span class="token punctuation">{</span> |
| message<span class="token punctuation">:</span> <span class="token string">'onlongpress'</span><span class="token punctuation">,</span> |
| duration<span class="token punctuation">:</span> <span class="token number">0.8</span> |
| <span class="token punctuation">}</span><span class="token punctuation">)</span> |
| <span class="token punctuation">}</span><span class="token punctuation">,</span> |
| <span class="token function">onappear</span> <span class="token punctuation">(</span><span class="token parameter">event</span><span class="token punctuation">)</span> <span class="token punctuation">{</span> |
| console<span class="token punctuation">.</span><span class="token function">log</span><span class="token punctuation">(</span><span class="token string">'onappear:'</span><span class="token punctuation">,</span> event<span class="token punctuation">)</span> |
| modal<span class="token punctuation">.</span><span class="token function">toast</span><span class="token punctuation">(</span><span class="token punctuation">{</span> |
| message<span class="token punctuation">:</span> <span class="token string">'onappear'</span><span class="token punctuation">,</span> |
| duration<span class="token punctuation">:</span> <span class="token number">0.8</span> |
| <span class="token punctuation">}</span><span class="token punctuation">)</span> |
| <span class="token punctuation">}</span><span class="token punctuation">,</span> |
| <span class="token function">ondisappear</span> <span class="token punctuation">(</span><span class="token parameter">event</span><span class="token punctuation">)</span> <span class="token punctuation">{</span> |
| console<span class="token punctuation">.</span><span class="token function">log</span><span class="token punctuation">(</span><span class="token string">'ondisappear:'</span><span class="token punctuation">,</span> event<span class="token punctuation">)</span> |
| modal<span class="token punctuation">.</span><span class="token function">toast</span><span class="token punctuation">(</span><span class="token punctuation">{</span> |
| message<span class="token punctuation">:</span> <span class="token string">'ondisappear'</span><span class="token punctuation">,</span> |
| duration<span class="token punctuation">:</span> <span class="token number">0.8</span> |
| <span class="token punctuation">}</span><span class="token punctuation">)</span> |
| <span class="token punctuation">}</span> |
| <span class="token punctuation">}</span> |
| <span class="token punctuation">}</span> |
| </span></span><span class="token tag"><span class="token tag"><span class="token punctuation"></</span>script</span><span class="token punctuation">></span></span> |
| |
| <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>style</span> <span class="token attr-name">scoped</span><span class="token punctuation">></span></span><span class="token style"><span class="token language-css"> |
| <span class="token selector">.box</span> <span class="token punctuation">{</span> |
| <span class="token property">border-width</span><span class="token punctuation">:</span> 2px<span class="token punctuation">;</span> |
| <span class="token property">border-style</span><span class="token punctuation">:</span> solid<span class="token punctuation">;</span> |
| <span class="token property">border-color</span><span class="token punctuation">:</span> #BBB<span class="token punctuation">;</span> |
| <span class="token property">width</span><span class="token punctuation">:</span> 250px<span class="token punctuation">;</span> |
| <span class="token property">height</span><span class="token punctuation">:</span> 250px<span class="token punctuation">;</span> |
| <span class="token property">margin-top</span><span class="token punctuation">:</span> 250px<span class="token punctuation">;</span> |
| <span class="token property">margin-left</span><span class="token punctuation">:</span> 250px<span class="token punctuation">;</span> |
| <span class="token property">background-color</span><span class="token punctuation">:</span> #EEE<span class="token punctuation">;</span> |
| <span class="token punctuation">}</span> |
| </span></span><span class="token tag"><span class="token tag"><span class="token punctuation"></</span>style</span><span class="token punctuation">></span></span> |
| </code></pre></div></div><div class="page-nav"><p class="inner"><span class="prev"> |
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