textarea ?? ? ?? ?? ?? ?? ??:
textarea ?? ? ?? ??.
??? ?? ?? ? ?? ?? ?? ??? ??? ?? ?????.
??? WXML ?????.
<view class="content"> placeholder: <textarea placeholder="占位符" /> <textarea placeholder="占位符 改變樣式style" placeholder-style= "color:blue"/> <textarea placeholder="占位符 改變樣式class" placeholder-class="placeholdText"/> </view>
??? WXSS ??? ??? ????.
.content{ ??border:1px?black?solid; ??margin:?10px; ??font-size:?10pt; ??padding:?10px; } textarea{ ??border:?1px?red?solid; ??margin:?auto; ??width:100%; ??height:?3em; ??margin-top:5px; ??padding:?3px; } /*占位符樣式*/ .placeholdText{ ??font-size:?2em; }
??? ?? ?? ? ?? ??? ??? ???:
??? WXML ?????.:
<view class="content"> auto-height: <textarea auto-height placeholder="自動(dòng)增高,style.height不生效"/> bindinput="當(dāng)內(nèi)容改變" <textarea placeholder="" bindlinechange="bindlinechange"/> bindfocus:當(dāng)獲取焦點(diǎn) <textarea placeholder="當(dāng)獲取焦點(diǎn)" value="" bindfocus="bindfocus"/> bindblur:當(dāng)失去焦點(diǎn)觸發(fā) <textarea placeholder="當(dāng)失去焦點(diǎn)" bindblur="bindblur"/> </view> 事件觸發(fā): <view class="content" style="color:blue"> {{log}} </view>
JS ??? ??? ????.:
Page({ ??data:{ ????log:'事件觸發(fā)' ??}, ??//行高改變時(shí) ??bindlinechange:function(e){ ????var?height=e.detail.height; ????var?heightRpx=e.detail.heightRpx; ????var?lineCount=e.detail.lineCount; ????this.setData({ ??????log:"height="+height+"??|??heightRpx="+heightRpx+"??|??lineCount="+lineCount ????}) ??}, ????//文本失去焦點(diǎn) ??bindblur:function(e){ ????var?value=e.detail.value; ?????this.setData({ ??????log:"bindblur失去改變.獲取textarea值="+value ????}) ??}, ???//文本獲取焦點(diǎn) ??bindfocus:function(e){ ????var?value=e.detail.value; ?????this.setData({ ??????log:"bindfocus獲取焦點(diǎn),獲取textarea值="+value ????}) ??} })
WXSS ??? ??? ????. :
.content{ ??border:1px?black?solid; ??margin:?10px; ??font-size:?10pt; ??padding:?10px; } textarea{ ??border:?1px?red?solid; ??margin:?auto; ??width:100%; ??height:?3em; ??margin-top:5px; ??padding:?3px; }
?? ?? ??:
??? WXML ?????:
<!--=======屬性=======--> <!--value:輸入框內(nèi)容--> <textarea value="內(nèi)容"/> <!--placeholder:占位符,對(duì)輸入框內(nèi)容提示--> <textarea placeholder="占位符" placeholder-class="占位符靜態(tài)樣式" placeholder-style="占位符動(dòng)態(tài)樣式"/> <!--disabled:控制標(biāo)簽有效,或者失效狀態(tài),在失效狀態(tài),不能獲取該值--> <textarea disabled="true"/> <textarea disabled/>?等同于?<textarea disabled="false"/> <!--maxlength:內(nèi)容長(zhǎng)度限制,默認(rèn)140--> <textarea maxlength="100"/> <textarea maxlength/>?等同于?<textarea maxlength="140"/> <!--focus:初始化時(shí),獲取輸入焦點(diǎn)(目前開發(fā)工具暫不支持)--> <textarea focus="true"/> <textarea focus/>?等同于?<textarea focus="false"/> <!--auto-focus:當(dāng)界面只有一個(gè)textarea,自動(dòng)獲取焦點(diǎn)--> <textarea auto-focus="true"/> <textarea auto-focus/>?等同于?<textarea auto-focus="false"/> <!--auto-height:是否自動(dòng)增高,設(shè)置auto-height時(shí),style.height不生效--> <textarea auto-height="true"/> <textarea auto-height/>?等同于?<textarea auto-height="false"/> <!--=======事件=======--> <!--bindlinechange:輸入框行數(shù)變化時(shí)調(diào)用 返回參數(shù):height,heightRpx,lineCount--> <textarea bindlinechange="自己定義函數(shù)名"/> <!--bindfocus:當(dāng)獲取焦點(diǎn),可用輸入狀態(tài)時(shí)觸發(fā)--> <textarea bindfocus="自己定義函數(shù)名"/> <!--bindblur:當(dāng)失去焦點(diǎn)觸發(fā)-->
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