{"id":260983,"date":"2024-05-15T13:50:06","date_gmt":"2024-05-15T05:50:06","guid":{"rendered":""},"modified":"2024-05-15T13:50:13","modified_gmt":"2024-05-15T05:50:13","slug":"android%e5%a6%82%e4%bd%95%e5%af%b9%e5%b7%b2%e6%9c%89%e6%8e%a7%e4%bb%b6%e4%bd%bf%e7%94%a8java%e4%bb%a3%e7%a0%81%e8%bf%9b%e8%a1%8c%e5%b1%9e%e6%80%a7%e6%8e%a7%e5%88%b6","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/260983.html","title":{"rendered":"android\u5982\u4f55\u5bf9\u5df2\u6709\u63a7\u4ef6\u4f7f\u7528java\u4ee3\u7801\u8fdb\u884c\u5c5e\u6027\u63a7\u5236"},"content":{"rendered":"<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/27120018\/92318088-2b24-4e84-b672-97ba8b3573d7.webp\" alt=\"android\u5982\u4f55\u5bf9\u5df2\u6709\u63a7\u4ef6\u4f7f\u7528java\u4ee3\u7801\u8fdb\u884c\u5c5e\u6027\u63a7\u5236\" \/><\/p>\n<p><p>\u5728Android\u5f00\u53d1\u4e2d\uff0c\u901a\u8fc7Java\u4ee3\u7801\u5bf9\u5df2\u6709\u63a7\u4ef6\u8fdb\u884c\u5c5e\u6027\u63a7\u5236<strong>\u80fd\u591f\u8ba9\u6211\u4eec\u66f4\u7075\u6d3b\u5730\u521b\u5efa\u4ea4\u4e92\u5f0f\u5e94\u7528<\/strong>\u3002\u6211\u4eec\u53ef\u4ee5<strong>\u52a8\u6001\u5730\u6539\u53d8\u63a7\u4ef6\u7684\u5c3a\u5bf8\u3001\u4f4d\u7f6e\u3001\u989c\u8272\u3001\u53ef\u89c1\u6027<\/strong>\u3001\u4ee5\u53ca\u5176\u4ed6\u5404\u79cd\u5c5e\u6027\u3002\u4f8b\u5982\uff0c\u901a\u8fc7Java\u4ee3\u7801\u53ef\u4ee5\u5b9e\u73b0\u70b9\u51fb\u4e00\u4e2a\u6309\u94ae\u6539\u53d8\u53e6\u4e00\u4e2a\u6587\u672c\u63a7\u4ef6\u7684\u5185\u5bb9\u3002\u4e0b\u9762\uff0c\u6211\u4eec\u5c06\u8be6\u7ec6\u5c55\u5f00\u5982\u4f55\u901a\u8fc7Java\u4ee3\u7801\u63a7\u5236\u63a7\u4ef6\u5c5e\u6027\u3002<\/p>\n<\/p>\n<p><h3>\u4e00\u3001\u83b7\u53d6\u63a7\u4ef6\u5b9e\u4f8b<\/h3>\n<\/p>\n<p><p>\u5728\u5f00\u59cb\u5bf9\u63a7\u4ef6\u8fdb\u884c\u5c5e\u6027\u63a7\u5236\u4e4b\u524d\uff0c\u6211\u4eec\u9996\u5148\u9700\u8981\u83b7\u5f97\u8be5\u63a7\u4ef6\u7684\u5b9e\u4f8b\u3002\u5728Android\u4e2d\uff0c\u6211\u4eec\u901a\u5e38\u901a\u8fc7<code>findViewById()<\/code>\u65b9\u6cd5\u5b9e\u73b0\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-java\">TextView textView = (TextView) findViewById(R.id.text_view);<\/p>\n<p>Button button = (Button) findViewById(R.id.button);<\/p>\n<p>ImageView imageView = (ImageView) findViewById(R.id.image_view);<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u83b7\u53d6\u5230\u63a7\u4ef6\u5b9e\u4f8b\u4e4b\u540e\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u5229\u7528\u5404\u79cd\u65b9\u6cd5\u5bf9\u5176\u5c5e\u6027\u8fdb\u884c\u64cd\u4f5c\u3002<\/p>\n<\/p>\n<p><h3>\u4e8c\u3001\u4fee\u6539\u63a7\u4ef6\u5c3a\u5bf8<\/h3>\n<\/p>\n<p><p>\u63a7\u4ef6\u7684\u5c3a\u5bf8\u53ef\u4ee5\u901a\u8fc7<code>LayoutParams<\/code>\u6765\u8fdb\u884c\u4fee\u6539\u3002\u901a\u8fc7\u8bbe\u7f6e<code>width<\/code>\u548c<code>height<\/code>\u5c5e\u6027\u6765\u6539\u53d8\u63a7\u4ef6\u7684\u5927\u5c0f\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-java\">ViewGroup.LayoutParams layoutParams = textView.getLayoutParams();<\/p>\n<p>layoutParams.width = 200; \/\/ \u8bbe\u7f6e\u5bbd\u5ea6\u4e3a200\u50cf\u7d20<\/p>\n<p>layoutParams.height = ViewGroup.LayoutParams.WRAP_CONTENT; \/\/ \u9ad8\u5ea6\u81ea\u9002\u5e94\u5185\u5bb9<\/p>\n<p>textView.setLayoutParams(layoutParams);<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u8be5\u65b9\u6cd5\u53ef\u4ee5\u7528\u4e8e\u4efb\u610f\u7ee7\u627f\u81ea<code>View<\/code>\u7684\u63a7\u4ef6\uff0c\u5b9e\u73b0\u52a8\u6001\u6539\u53d8\u5c3a\u5bf8\u7684\u6548\u679c\u3002<\/p>\n<\/p>\n<p><h3>\u4e09\u3001\u6539\u53d8\u63a7\u4ef6\u4f4d\u7f6e<\/h3>\n<\/p>\n<p><p>\u63a7\u4ef6\u4f4d\u7f6e\u7684\u6539\u53d8\u901a\u5e38\u6d89\u53ca\u5230\u5e03\u5c40\u53c2\u6570\uff08LayoutParams\uff09\u4e2d\u7684<code>margin<\/code>\u5c5e\u6027\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-java\">ViewGroup.MarginLayoutParams marginParams = (ViewGroup.MarginLayoutParams) textView.getLayoutParams();<\/p>\n<p>marginParams.topMargin = 50; \/\/ \u9876\u90e8\u8ddd\u79bb\u5e03\u5c4050\u50cf\u7d20<\/p>\n<p>textView.setLayoutParams(marginParams);<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u8fd9\u79cd\u65b9\u5f0f\u53ef\u4ee5\u6539\u53d8\u63a7\u4ef6\u76f8\u5bf9\u4e8e\u5176\u7236\u5e03\u5c40\u7684\u4f4d\u7f6e\u3002<\/p>\n<\/p>\n<p><h3>\u56db\u3001\u63a7\u4ef6\u989c\u8272\u7684\u6539\u53d8<\/h3>\n<\/p>\n<p><p>\u989c\u8272\u7684\u6539\u53d8\u53ef\u4ee5\u901a\u8fc7\u8bbe\u7f6e\u63a7\u4ef6\u7684\u80cc\u666f\u6216\u8005\u6587\u672c\u989c\u8272\u5b9e\u73b0\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-java\">textView.setBackgroundColor(Color.RED); \/\/ \u8bbe\u7f6e\u63a7\u4ef6\u7684\u80cc\u666f\u989c\u8272\u4e3a\u7ea2\u8272<\/p>\n<p>textView.setTextColor(Color.BLUE); \/\/ \u8bbe\u7f6e\u6587\u672c\u989c\u8272\u4e3a\u84dd\u8272<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u901a\u8fc7\u8fd9\u6837\u7684\u65b9\u6cd5\uff0c\u6211\u4eec\u53ef\u4ee5\u6839\u636e\u5e94\u7528\u903b\u8f91\u9700\u8981\u52a8\u6001\u6539\u53d8\u63a7\u4ef6\u7684\u989c\u8272\u3002<\/p>\n<\/p>\n<p><h3>\u4e94\u3001\u8bbe\u7f6e\u63a7\u4ef6\u53ef\u89c1\u6027<\/h3>\n<\/p>\n<p><p>\u63a7\u4ef6\u7684\u53ef\u89c1\u6027\u63a7\u5236\u662f\u5e38\u7528\u7684\u5c5e\u6027\u4e4b\u4e00\uff0c\u4e3b\u8981\u6709\u4e09\u4e2a\u503c\uff1a<code>VISIBLE<\/code>\u3001<code>INVISIBLE<\/code>\u548c<code>GONE<\/code>\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-java\">button.setVisibility(View.VISIBLE); \/\/ \u8bbe\u7f6e\u6309\u94ae\u53ef\u89c1<\/p>\n<p>imageView.setVisibility(View.GONE); \/\/ \u8bbe\u7f6e\u56fe\u7247\u63a7\u4ef6\u4e0d\u5360\u7a7a\u95f4\u5730\u9690\u85cf<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5408\u7406\u5730\u4f7f\u7528\u53ef\u89c1\u6027\u63a7\u5236\u53ef\u4ee5\u589e\u5f3a\u5e94\u7528\u7684\u4ea4\u4e92\u6027\u548c\u7528\u6237\u4f53\u9a8c\u3002<\/p>\n<\/p>\n<p><h3>\u516d\u3001\u76d1\u542c\u63a7\u4ef6\u4e8b\u4ef6<\/h3>\n<\/p>\n<p><p>\u63a7\u4ef6\u5c5e\u6027\u7684\u6539\u53d8\u5f80\u5f80\u662f\u7531\u4e8e\u67d0\u4e9b\u4e8b\u4ef6\u7684\u89e6\u53d1\u3002\u6211\u4eec\u901a\u8fc7\u76d1\u542c\u63a7\u4ef6\u7684\u4e8b\u4ef6\u6765\u54cd\u5e94\u7528\u6237\u7684\u4ea4\u4e92\uff0c\u8fd9\u662f\u63a7\u4ef6\u5c5e\u6027\u63a7\u5236\u4e2d\u4e0d\u53ef\u6216\u7f3a\u7684\u4e00\u90e8\u5206\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-java\">button.setOnClickListener(new View.OnClickListener() {<\/p>\n<p>    @Override<\/p>\n<p>    public void onClick(View v) {<\/p>\n<p>        textView.setText(&quot;\u6309\u94ae\u88ab\u70b9\u51fb&quot;); \/\/ \u4fee\u6539\u6587\u672c\u63a7\u4ef6\u7684\u5185\u5bb9<\/p>\n<p>    }<\/p>\n<p>});<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u901a\u8fc7\u76d1\u542c\u63a7\u4ef6\u7684\u4e8b\u4ef6\uff0c\u53ef\u4ee5\u5728\u4e8b\u4ef6\u53d1\u751f\u65f6\u6539\u53d8\u63a7\u4ef6\u7684\u5404\u9879\u5c5e\u6027\u3002<\/p>\n<\/p>\n<p><h3>\u4e03\u3001\u52a8\u6001\u6539\u53d8\u63a7\u4ef6\u6837\u5f0f<\/h3>\n<\/p>\n<p><p>\u63a7\u4ef6\u7684\u6837\u5f0f\u4e5f\u53ef\u4ee5\u901a\u8fc7Java\u4ee3\u7801\u5b9e\u73b0\u52a8\u6001\u6539\u53d8\uff0c\u6bd4\u5982\u6539\u53d8\u5b57\u4f53\u5927\u5c0f\u3001\u6837\u5f0f\u7b49\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-java\">textView.setTextSize(TypedValue.COMPLEX_UNIT_SP, 18); \/\/ \u8bbe\u7f6e\u5b57\u4f53\u5927\u5c0f\u4e3a18sp<\/p>\n<p>textView.setTypeface(Typeface.DEFAULT_BOLD); \/\/ \u8bbe\u7f6e\u5b57\u4f53\u4e3a\u7c97\u4f53<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u52a8\u6001\u6539\u53d8\u6837\u5f0f\u53ef\u4ee5\u6839\u636e\u4e0d\u540c\u573a\u666f\u9700\u8981\u5b9e\u65f6\u8c03\u6574\u63a7\u4ef6\u7684\u5916\u89c2\u3002<\/p>\n<\/p>\n<p><h3>\u516b\u3001\u63a7\u5236\u63a7\u4ef6\u5185\u90e8\u5143\u7d20<\/h3>\n<\/p>\n<p><p>\u67d0\u4e9b\u63a7\u4ef6\u62e5\u6709\u5185\u90e8\u5143\u7d20\uff0c\u5982<code>ListView<\/code>\u3001<code>Spinner<\/code>\u7b49\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u9002\u914d\u5668\uff08Adapter\uff09\u6765\u63a7\u5236\u8fd9\u4e9b\u5185\u90e8\u5143\u7d20\u7684\u5c5e\u6027\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-java\">ArrayAdapter&lt;String&gt; adapter = new ArrayAdapter&lt;&gt;(this, android.R.layout.simple_list_item_1, items);<\/p>\n<p>listView.setAdapter(adapter);<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u4f7f\u7528\u9002\u914d\u5668\u6a21\u5f0f\u53ef\u4ee5\u65b9\u4fbf\u5730\u5b9e\u73b0\u5bf9\u5185\u90e8\u5143\u7d20\u5c5e\u6027\u7684\u96c6\u4e2d\u63a7\u5236\u3002<\/p>\n<\/p>\n<p><h3>\u4e5d\u3001\u54cd\u5e94\u63a7\u4ef6\u751f\u547d\u5468\u671f\u4e8b\u4ef6<\/h3>\n<\/p>\n<p><p>Android\u4e2d\u7684\u63a7\u4ef6\u540c\u6837\u62e5\u6709\u751f\u547d\u5468\u671f\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u91cd\u5199\u7279\u5b9a\u7684\u65b9\u6cd5\u6765\u54cd\u5e94\u8fd9\u4e9b\u751f\u547d\u5468\u671f\u4e8b\u4ef6\uff0c\u5982<code>onMeasure()<\/code>\u3001<code>onLayout()<\/code>\u548c<code>onDraw()<\/code>\u7b49\u3002\u8fd9\u4e9b\u65b9\u6cd5\u901a\u5e38\u7528\u4e8e\u521b\u5efa\u81ea\u5b9a\u4e49\u63a7\u4ef6\u65f6\u3002<\/p>\n<\/p>\n<p><h3>\u5341\u3001\u4f7f\u7528\u52a8\u753b\u6539\u53d8\u63a7\u4ef6\u5c5e\u6027<\/h3>\n<\/p>\n<p><p>\u6700\u540e\uff0c\u5c5e\u6027\u52a8\u753b\u6846\u67b6\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u673a\u5236\u6765\u52a8\u6001\u6539\u53d8\u63a7\u4ef6\u7684\u5c5e\u6027\uff0c\u5e76\u4e14\u53ef\u4ee5\u6709\u65f6\u95f4\u4e0a\u7684\u63a7\u5236\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-java\">ObjectAnimator.ofFloat(textView, &quot;translationX&quot;, 100f).setDuration(200).start(); \/\/ \u8ba9\u63a7\u4ef6\u6cbfX\u8f74\u79fb\u52a8100\u50cf\u7d20<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u901a\u8fc7\u52a8\u753b\uff0c\u6211\u4eec\u53ef\u4ee5\u5b9e\u73b0\u66f4\u52a0\u5e73\u6ed1\u548c\u5a31\u4e50\u5316\u7684\u4ea4\u4e92\u6548\u679c\u3002<\/p>\n<\/p>\n<p><p>\u4e0a\u8ff0\u5185\u5bb9\u662f\u4e00\u4e9b\u57fa\u672c\u800c\u91cd\u8981\u7684\u63a7\u4ef6\u5c5e\u6027\u63a7\u5236\u65b9\u6cd5\u3002\u901a\u8fc7\u8fd9\u4e9b\u65b9\u6cd5\uff0c\u4f60\u53ef\u4ee5\u521b\u5efa\u51fa\u54cd\u5e94\u5f0f\u548c\u52a8\u6001\u7684Android\u5e94\u7528\uff0c\u4ece\u800c\u63d0\u4f9b\u66f4\u597d\u7684\u7528\u6237\u4f53\u9a8c\u3002\u5728\u5b9e\u9645\u5f00\u53d1\u8fc7\u7a0b\u4e2d\uff0c\u9700\u8981\u6839\u636e\u5177\u4f53\u7684\u5e94\u7528\u573a\u666f\u8fdb\u884c\u9002\u5f53\u7684\u9009\u62e9\u548c\u5e94\u7528\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p><strong>\u95ee\u98981\uff1a\u5982\u4f55\u4f7f\u7528Java\u4ee3\u7801\u5bf9Android\u4e2d\u7684\u63a7\u4ef6\u8fdb\u884c\u5c5e\u6027\u63a7\u5236\uff1f<\/strong><\/p>\n<p>\u7b54\uff1a\u8981\u5bf9\u5df2\u6709\u7684\u63a7\u4ef6\u4f7f\u7528Java\u4ee3\u7801\u8fdb\u884c\u5c5e\u6027\u63a7\u5236\uff0c\u53ef\u4ee5\u6309\u7167\u4ee5\u4e0b\u6b65\u9aa4\u8fdb\u884c\uff1a<\/p>\n<ol>\n<li>\u9996\u5148\uff0c\u901a\u8fc7findViewById\u65b9\u6cd5\u627e\u5230\u8981\u63a7\u5236\u7684\u63a7\u4ef6\uff0c\u5c06\u5176\u8d4b\u503c\u7ed9\u4e00\u4e2a\u53d8\u91cf\uff0c\u4f8b\u5982TextView tv = findViewById(R.id.textView)\u3002<\/li>\n<li>\u63a5\u4e0b\u6765\uff0c\u53ef\u4ee5\u4f7f\u7528\u8be5\u53d8\u91cf\u6765\u8bbf\u95ee\u63a7\u4ef6\u7684\u5404\u79cd\u5c5e\u6027\u548c\u65b9\u6cd5\uff0c\u4f8b\u5982tv.setText(&quot;Hello World&quot;)\u6765\u8bbe\u7f6e\u6587\u672c\u5185\u5bb9\uff0ctv.setBackgroundColor(Color.RED)\u6765\u8bbe\u7f6e\u80cc\u666f\u989c\u8272\u3002<\/li>\n<li>\u82e5\u60f3\u66f4\u6539\u63a7\u4ef6\u7684\u5927\u5c0f\u548c\u4f4d\u7f6e\uff0c\u53ef\u4ee5\u4f7f\u7528LayoutParams\uff0c\u4f8b\u5982LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT)\uff0c\u7136\u540e\u8c03\u7528tv.setLayoutParams(layoutParams)\u6765\u8bbe\u7f6e\u63a7\u4ef6\u7684\u53c2\u6570\u3002<\/li>\n<li>\u6700\u540e\uff0c\u8bb0\u5f97\u8c03\u7528tv.invalidate()\u65b9\u6cd5\u6765\u5237\u65b0\u63a7\u4ef6\u7684\u663e\u793a\u3002<\/li>\n<\/ol>\n<p>\u8fd9\u6837\uff0c\u5c31\u80fd\u901a\u8fc7Java\u4ee3\u7801\u5bf9\u5df2\u6709\u7684\u63a7\u4ef6\u8fdb\u884c\u5c5e\u6027\u63a7\u5236\u4e86\u3002<\/p>\n<p><strong>\u95ee\u98982: \u5982\u4f55\u4f7f\u7528Java\u4ee3\u7801\u52a8\u6001\u6539\u53d8Android\u63a7\u4ef6\u7684\u5c5e\u6027\uff1f<\/strong><\/p>\n<p>\u7b54\uff1a\u8981\u4f7f\u7528Java\u4ee3\u7801\u52a8\u6001\u6539\u53d8Android\u63a7\u4ef6\u7684\u5c5e\u6027\uff0c\u53ef\u4ee5\u6309\u7167\u4ee5\u4e0b\u6b65\u9aa4\u8fdb\u884c\uff1a<\/p>\n<ol>\n<li>\u627e\u5230\u8981\u6539\u53d8\u5c5e\u6027\u7684\u63a7\u4ef6\uff0c\u5c06\u5176\u8d4b\u503c\u7ed9\u4e00\u4e2a\u53d8\u91cf\uff0c\u4f8b\u5982EditText editText = 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