{"id":762,"date":"2023-06-14T15:08:57","date_gmt":"2023-05-09T11:34:23","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/index.php\/2023\/11\/30\/android-autocompletetextview-%e7%a4%ba%e4%be%8b%e6%95%99%e7%a8%8b\/"},"modified":"2025-08-03T06:48:50","modified_gmt":"2025-08-02T22:48:50","slug":"android-autocompletetextview-%e7%a4%ba%e4%be%8b%e6%95%99%e7%a8%8b","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/android-autocompletetextview-%e7%a4%ba%e4%be%8b%e6%95%99%e7%a8%8b\/","title":{"rendered":"Android AutoCompleteTextView\u4f7f\u7528\u6559\u7a0b\uff1a\u5b8c\u6574\u793a\u4f8b\u4e0e\u6700\u4f73\u5b9e\u8df5"},"content":{"rendered":"<p>\u5728Android\u5e94\u7528\u7a0b\u5e8f\u4e2d\uff0cAutoCompleteTextView\u662f\u4e00\u4e2a\u53ef\u7f16\u8f91\u7684\u6587\u672c\u89c6\u56fe\uff0c\u5b83\u5728\u7528\u6237\u8f93\u5165\u65f6\u81ea\u52a8\u663e\u793a\u5b8c\u6210\u5efa\u8bae\u3002\u5728\u672c\u6559\u7a0b\u4e2d\uff0c\u6211\u4eec\u5c06\u4f7f\u7528ArrayAdapter\u6765\u5b9a\u4e49\u5efa\u8bae\u5217\u8868\uff0c\u5e76\u5728\u6211\u4eec\u7684\u5e94\u7528\u7a0b\u5e8f\u4e2d\u5b9e\u73b0Android\u7684AutoCompleteTextView\u3002<\/p>\n<h3>Android AutoCompleteTextView \u6982\u8ff0<\/h3>\n<p>AutoCompleteTextView\u662f\u4e00\u4e2a\u7ec4\u4ef6\uff0c\u7528\u4e8e\u5728\u53ef\u7f16\u8f91\u6587\u672c\u5b57\u6bb5\u4e2d\u8f93\u5165\u65f6\u663e\u793a\u5efa\u8bae\u5185\u5bb9\u3002\u5efa\u8bae\u5217\u8868\u4ee5\u4e0b\u62c9\u83dc\u5355\u7684\u5f62\u5f0f\u5c55\u793a\uff0c\u7528\u6237\u53ef\u4ee5\u4ece\u4e2d\u9009\u62e9\u6240\u9700\u7684\u9879\u3002\u5efa\u8bae\u5217\u8868\u662f\u4ece\u4e00\u4e2a\u9002\u914d\u5668\u4e2d\u83b7\u53d6\u7684\uff0c\u5e76\u4e14\u53ea\u6709\u5728\u8fbe\u5230\u6307\u5b9a\u7684\u5b57\u7b26\u6570\u9608\u503c\u540e\u624d\u4f1a\u663e\u793a\u51fa\u6765\u3002\u8981\u4f7f\u7528AutoCompleteThreshold\u5b57\u6bb5\uff0c\u9700\u8981\u5728xml\u5e03\u5c40\u4e2d\u8fdb\u884c\u5b9a\u4e49\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n<pre class=\"post-pre\"><code>&lt;AutoCompleteTextView\r\n   android:id=\"@+id\/autoCompleteTextView\"\r\n   android:layout_width=\"wrap_content\"\r\n   android:layout_height=\"wrap_content\"\r\n   android:layout_alignParentTop=\"true\"\r\n   android:layout_centerHorizontal=\"true\"\r\n   android:layout_marginTop=\"65dp\"\r\n   android:ems=\"10\" &gt;\r\n&lt;\/AutoCompleteTextView&gt;<\/code><\/pre>\n<p>\u6ce8\u610f\uff1aandroid:ems\u6216setEms\uff08x\uff09\u4f1a\u6839\u636ex\u4e2a&#8221;M&#8221;\u5b57\u6bcd\u7684\u6570\u91cf\u8bbe\u7f6eTextView\u7684\u5bbd\u5ea6\uff0c\u800c\u4e0d\u8003\u8651\u5b9e\u9645\u6587\u672c\u7684\u957f\u5ea6\u548c\u5b57\u4f53\u5927\u5c0f\u3002\u4e0b\u9762\u662f\u4e00\u4e9bAutocomplete\u5217\u8868\u7684\u91cd\u8981\u65b9\u6cd5\u3002<\/p>\n<ul>\n<li><strong>getAdapter()<\/strong>\uff1a\u6b64\u65b9\u6cd5\u8fd4\u56de\u4e00\u4e2a\u53ef\u8fc7\u6ee4\u7684\u5217\u8868\u9002\u914d\u5668\uff0c\u7528\u4e8e\u81ea\u52a8\u5b8c\u6210<\/li>\n<li><strong>getCompletionHint()<\/strong>\uff1a\u6b64\u65b9\u6cd5\u8fd4\u56de\u5e95\u90e8\u5339\u914d\u5217\u8868\u663e\u793a\u7684\u53ef\u9009\u63d0\u793a\u6587\u672c<\/li>\n<li><strong>getDropDownAnchor()<\/strong>\uff1a\u6b64\u65b9\u6cd5\u8fd4\u56de\u81ea\u52a8\u5b8c\u6210\u4e0b\u62c9\u5217\u8868\u6240\u9644\u52a0\u5230\u7684\u89c6\u56fe\u7684id<\/li>\n<li><strong>getListSelection()<\/strong>\uff1a\u6b64\u65b9\u6cd5\u8fd4\u56de\u4e0b\u62c9\u89c6\u56fe\u9009\u62e9\u7684\u4f4d\u7f6e\uff08\u5982\u679c\u6709\u7684\u8bdd\uff09<\/li>\n<li><strong>isPopupShowing()<\/strong>\uff1a\u6b64\u65b9\u6cd5\u6307\u793a\u5f39\u51fa\u83dc\u5355\u662f\u5426\u6b63\u5728\u663e\u793a<\/li>\n<li><strong>setText(CharSequence text, boolean filter)<\/strong>\uff1a\u6b64\u65b9\u6cd5\u8bbe\u7f6e\u6587\u672c\uff0c\u4f46\u53ef\u4ee5\u7981\u7528\u8fc7\u6ee4<\/li>\n<li><strong>showDropDown()<\/strong>\uff1a\u6b64\u65b9\u6cd5\u5728\u5c4f\u5e55\u4e0a\u663e\u793a\u4e0b\u62c9\u83dc\u5355<\/li>\n<\/ul>\n<p>setAdapter\u65b9\u6cd5\u7528\u4e8e\u8bbe\u7f6eautoCompleteTextView\u7684\u9002\u914d\u5668\u3002\u8ba9\u6211\u4eec\u8f6c\u5230\u5176\u7f16\u7801\u90e8\u5206\u3002<\/p>\n<h3>Android AutoCompleteTextView\u9879\u76ee\u7ed3\u6784<\/h3>\n<p>\u8fd9\u4e2a\u9879\u76ee\u5728MainActivity\u7684\u5e03\u5c40\u4e2d\u5305\u542b\u4e00\u4e2a\u7b80\u5355\u7684TextView\u548c\u4e00\u4e2aAutoCompleteTextView\u3002ArrayAdapter\u4e2d\u5305\u542b\u4ee5\u4e0b\u6c34\u679c\uff1a\u82f9\u679c\u3001\u9999\u8549\u3001\u6a31\u6843\u3001\u67a3\u3001\u8461\u8404\u3001\u7315\u7334\u6843\u3001\u8292\u679c\u3001\u68a8\u3002<\/p>\n<h3>Android AutoCompleteTextView \u793a\u4f8b\u4ee3\u7801<\/h3>\n<p>MainActivity\u7684\u5e03\u5c40\u5b9a\u4e49\u5982\u4e0b\u3002activity_main.xml<\/p>\n<pre class=\"post-pre\"><code>&lt;RelativeLayout xmlns:android=\"https:\/\/schemas.android.com\/apk\/res\/android\"\r\n    xmlns:tools=\"https:\/\/schemas.android.com\/tools\" android:layout_width=\"match_parent\"\r\n    android:layout_height=\"match_parent\" android:paddingLeft=\"@dimen\/activity_horizontal_margin\"\r\n    android:paddingRight=\"@dimen\/activity_horizontal_margin\"\r\n    android:paddingTop=\"@dimen\/activity_vertical_margin\"\r\n    android:paddingBottom=\"@dimen\/activity_vertical_margin\" tools:context=\".MainActivity\"&gt;\r\n\r\n    &lt;TextView\r\n        android:id=\"@+id\/textView\"\r\n        android:layout_width=\"wrap_content\"\r\n        android:layout_height=\"wrap_content\"\r\n        android:layout_alignParentLeft=\"true\"\r\n        android:layout_alignParentTop=\"true\"\r\n        android:layout_marginTop=\"15dp\"\r\n        android:text=\"\u8bf7\u4ece\u4ee5\u4e0b\u6c34\u679c\u4e2d\u9009\u62e9\u4e00\u79cd\uff08\u82f9\u679c \u9999\u8549 \u6a31\u6843 \u67a3 \u8461\u8404 \u7315\u7334\u6843 \u8292\u679c \u68a8\uff09\" \/&gt;\r\n\r\n    &lt;AutoCompleteTextView\r\n        android:id=\"@+id\/autoCompleteTextView\"\r\n        android:layout_width=\"wrap_content\"\r\n        android:layout_height=\"wrap_content\"\r\n        android:layout_alignParentLeft=\"true\"\r\n        android:layout_below=\"@+id\/textView\"\r\n        android:layout_marginLeft=\"36dp\"\r\n        android:layout_marginTop=\"17dp\"\r\n        android:ems=\"10\"\r\n        android:text=\"\"&gt;\r\n\r\n        &lt;requestFocus \/&gt;\r\n    &lt;\/AutoCompleteTextView&gt;\r\n\r\n&lt;\/RelativeLayout&gt;<\/code><\/pre>\n<p>\u4e0b\u9762\u662fMainActivity.java\u7684\u5b9a\u4e49\u3002<\/p>\n<pre class=\"post-pre\"><code>package com.Olivia.autocomplete;\r\n\r\nimport android.app.Activity;\r\nimport android.graphics.Color;\r\nimport android.os.Bundle;\r\nimport android.widget.ArrayAdapter;\r\nimport android.widget.AutoCompleteTextView;\r\n\r\npublic class MainActivity extends Activity {\r\n    String[] fruits = {\"\u82f9\u679c\", \"\u9999\u8549\", \"\u6a31\u6843\", \"\u67a3\", \"\u8461\u8404\", \"\u7315\u7334\u6843\", \"\u8292\u679c\", \"\u68a8\"};\r\n\r\n    @Override\r\n    protected void onCreate(Bundle savedInstanceState) {\r\n        super.onCreate(savedInstanceState);\r\n        setContentView(R.layout.activity_main);\r\n\r\n        \/\/\u521b\u5efa\u5305\u542b\u6c34\u679c\u540d\u79f0\u5217\u8868\u7684ArrayAdapter\u5b9e\u4f8b\r\n        ArrayAdapter&lt;String&gt; adapter = new ArrayAdapter&lt;String&gt;\r\n                (this, android.R.layout.select_dialog_item, fruits);\r\n        \/\/\u83b7\u53d6AutoCompleteTextView\u7684\u5b9e\u4f8b\r\n        AutoCompleteTextView actv = (AutoCompleteTextView) findViewById(R.id.autoCompleteTextView);\r\n        actv.setThreshold(1); \/\/\u5c06\u4ece\u7b2c\u4e00\u4e2a\u5b57\u7b26\u5f00\u59cb\u5de5\u4f5c\r\n        actv.setAdapter(adapter); \/\/\u5c06\u9002\u914d\u5668\u6570\u636e\u8bbe\u7f6e\u5230AutoCompleteTextView\u4e2d\r\n        actv.setTextColor(Color.RED);\r\n\r\n    }\r\n}<\/code><\/pre>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/6564850fa4b2f92e6c7305a8\/14-0.gif\" alt=\"Android AutoCompleteTextView \u793a\u4f8b\u5e94\u7528\" \/><\/div>\n<p>\u4e0b\u8f7d Android AutoCompleteTextView \u9879\u76ee<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728Android\u5e94\u7528\u7a0b\u5e8f\u4e2d\uff0cAutoCompleteTextView\u662f\u4e00\u4e2a\u53ef\u7f16\u8f91\u7684\u6587\u672c\u89c6\u56fe\uff0c\u5b83\u5728\u7528\u6237\u8f93\u5165\u65f6\u81ea\u52a8 [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[900,904,2062],"class_list":{"0":"post-762","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"hentry","6":"category-uncategorized","7":"tag-android","9":"tag-autocompletetextview"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Android AutoCompleteTextView\u4f7f\u7528\u6559\u7a0b\uff1a\u5b8c\u6574\u793a\u4f8b\u4e0e\u6700\u4f73\u5b9e\u8df5 - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"\u672c\u6559\u7a0b\u8be6\u7ec6\u4ecb\u7ecdAndroid AutoCompleteTextView\u63a7\u4ef6\u7684\u4f7f\u7528\u65b9\u6cd5\uff0c\u5305\u542b\u5b8c\u6574\u4ee3\u7801\u793a\u4f8b\u548c\u5b9e\u9645\u5e94\u7528\u573a\u666f\u3002\u4ece\u57fa\u7840\u914d\u7f6e\u5230\u9ad8\u7ea7\u529f\u80fd\uff0c\u5e2e\u52a9\u5f00\u53d1\u8005\u5feb\u901f\u638c\u63e1\u81ea\u52a8\u5b8c\u6210\u6587\u672c\u8f93\u5165\u7684\u5b9e\u73b0\u6280\u5de7\uff0c\u63d0\u5347Android\u5e94\u7528\u7684\u7528\u6237\u4f53\u9a8c\u3002\u9002\u5408Android\u521d\u5b66\u8005\u548c\u6709\u7ecf\u9a8c\u7684\u5f00\u53d1\u8005\u53c2\u8003\u5b66\u4e60\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/android-autocompletetextview-\u793a\u4f8b\u6559\u7a0b\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Android AutoCompleteTextView\u4f7f\u7528\u6559\u7a0b\uff1a\u5b8c\u6574\u793a\u4f8b\u4e0e\u6700\u4f73\u5b9e\u8df5\" \/>\n<meta property=\"og:description\" content=\"\u672c\u6559\u7a0b\u8be6\u7ec6\u4ecb\u7ecdAndroid AutoCompleteTextView\u63a7\u4ef6\u7684\u4f7f\u7528\u65b9\u6cd5\uff0c\u5305\u542b\u5b8c\u6574\u4ee3\u7801\u793a\u4f8b\u548c\u5b9e\u9645\u5e94\u7528\u573a\u666f\u3002\u4ece\u57fa\u7840\u914d\u7f6e\u5230\u9ad8\u7ea7\u529f\u80fd\uff0c\u5e2e\u52a9\u5f00\u53d1\u8005\u5feb\u901f\u638c\u63e1\u81ea\u52a8\u5b8c\u6210\u6587\u672c\u8f93\u5165\u7684\u5b9e\u73b0\u6280\u5de7\uff0c\u63d0\u5347Android\u5e94\u7528\u7684\u7528\u6237\u4f53\u9a8c\u3002\u9002\u5408Android\u521d\u5b66\u8005\u548c\u6709\u7ecf\u9a8c\u7684\u5f00\u53d1\u8005\u53c2\u8003\u5b66\u4e60\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/android-autocompletetextview-\u793a\u4f8b\u6559\u7a0b\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2023-05-09T11:34:23+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-08-02T22:48:50+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/6564850fa4b2f92e6c7305a8\/14-0.gif\" \/>\n<meta name=\"author\" content=\"\u96c5, \u609f\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u96c5, \u609f\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 \u5206\" \/>\n<script type=\"application\/ld+json\" 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