{"id":255435,"date":"2016-03-24T21:07:36","date_gmt":"2016-03-24T13:07:36","guid":{"rendered":"http:\/\/blog.zhenglei.net\/?p=255435"},"modified":"2016-03-24T22:46:31","modified_gmt":"2016-03-24T14:46:31","slug":"setcontentview","status":"publish","type":"post","link":"https:\/\/blog.zhenglei.net\/?p=255435","title":{"rendered":"setContentView"},"content":{"rendered":"<p><a href=\"http:\/\/android-developers.blogspot.in\/2009\/03\/android-layout-tricks-3-optimize-with.html\">http:\/\/android-developers.blogspot.in\/2009\/03\/android-layout-tricks-3-optimize-with.html<\/a><\/p>\n<h1><span class=\"link_title\"><a href=\"http:\/\/blog.csdn.net\/chindroid\/article\/details\/8000713\"> Android\u4e2dvisibility\u5c5e\u6027VISIBLE\u3001INVISIBLE\u3001GONE\u7684\u533a\u522b <\/a><\/span><\/h1>\n<p>\u5728Android\u5f00\u53d1\u4e2d\uff0c\u5927\u90e8\u5206\u63a7\u4ef6\u90fd\u6709visibility\u8fd9\u4e2a\u5c5e\u6027\uff0c\u5176\u5c5e\u6027\u67093\u4e2a\u5206\u522b\u4e3a\u201cvisible \u201d\u3001\u201cinvisible\u201d\u3001\u201cgone\u201d\u3002\u4e3b\u8981\u7528\u6765\u8bbe\u7f6e\u63a7\u5236\u63a7\u4ef6\u7684\u663e\u793a\u548c\u9690\u85cf\u3002\u6709\u4e9b\u4eba\u53ef\u80fd\u4f1a\u7591\u60d1Invisible\u548cgone\u662f\u6709\u4ec0\u4e48\u533a\u522b\u7684\uff1f\uff1f\uff1f\u90a3 \u4e48\uff0c\u6211\u4eec\u5e26\u7740\u8fd9\u4e2a\u7591\u95ee\u770b\u4e0b\u9762\uff1a<\/p>\n<p>\u5176\u5728XML\u6587\u4ef6\u548cJava\u4ee3\u7801\u4e2d\u8bbe\u7f6e\u5982\u4e0b\uff1a<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><strong>\u53ef\u89c1\uff08visible)<\/strong><\/p>\n<p>XML\u6587\u4ef6\uff1aandroid:visibility=&#8221;visible&#8221;<\/p>\n<p>Java\u4ee3\u7801\uff1aview.setVisibility(View.VISIBLE);<\/p>\n<p>&nbsp;<\/p>\n<p><strong>\u4e0d\u53ef\u89c1\uff08invisible\uff09<\/strong><\/p>\n<p>XML\u6587\u4ef6\uff1aandroid:visibility=&#8221;invisible&#8221;<\/p>\n<p>Java\u4ee3\u7801\uff1aview.setVisibility(View.INVISIBLE);<\/p>\n<p>&nbsp;<\/p>\n<p><strong>\u9690\u85cf\uff08GONE\uff09<\/strong><\/p>\n<p>XML\u6587\u4ef6\uff1aandroid:visibility=&#8221;gone&#8221;<\/p>\n<p>Java\u4ee3\u7801\uff1aview.setVisibility(View.GONE);<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>\u4e3a\u4e86\u533a\u522b\u4e09\u8005\uff0c\u6211\u5efa\u4e86\u4e00\u4e2aDome\u8fdb\u884c\u6f14\u793a\uff0c\u5148\u4e0aDome\u7684\u4ee3\u7801\uff0c\u6f14\u793a\u540e\u5c31\u77e5\u9053\u5b83\u4eec\u7684\u533a\u522b\uff1a<\/p>\n<p>XML\u6587\u4ef6\uff1a<\/p>\n<div class=\"dp-highlighter bg_html\">\n<div class=\"bar\">\n<div class=\"tools\"><b>[html]<\/b> <a class=\"ViewSource\" title=\"view plain\" href=\"http:\/\/blog.csdn.net\/chindroid\/article\/details\/8000713#\">view plain<\/a><span class=\"tracking-ad\"><span class=\"tracking-ad\"> <a class=\"CopyToClipboard\" title=\"copy\" href=\"http:\/\/blog.csdn.net\/chindroid\/article\/details\/8000713#\" target=\"_blank\">copy<\/a><\/span><\/span><\/p>\n<div><\/div>\n<\/div>\n<\/div>\n<ol class=\"dp-xml\" start=\"1\">\n<li class=\"alt\"><span class=\"tag\">&lt;?<\/span><span class=\"tag-name\">xml<\/span>\u00a0<span class=\"attribute\">version<\/span>=<span class=\"attribute-value\">&#8220;1.0&#8221;<\/span>\u00a0<span class=\"attribute\">encoding<\/span>=<span class=\"attribute-value\">&#8220;utf-8&#8221;<\/span><span class=\"tag\">?&gt;<\/span><\/li>\n<li class=\"\"><span class=\"tag\">&lt;<\/span><span class=\"tag-name\">LinearLayout<\/span>\u00a0<span class=\"attribute\">xmlns:android<\/span>=<span class=\"attribute-value\">&#8220;http:\/\/schemas.android.com\/apk\/res\/android&#8221;<\/span><\/li>\n<li class=\"alt\">\u00a0\u00a0\u00a0\u00a0<span class=\"attribute\">android:layout_width<\/span>=<span class=\"attribute-value\">&#8220;fill_parent&#8221;<\/span><\/li>\n<li class=\"\">\u00a0\u00a0\u00a0\u00a0<span class=\"attribute\">android:layout_height<\/span>=<span class=\"attribute-value\">&#8220;fill_parent&#8221;<\/span><\/li>\n<li class=\"alt\">\u00a0\u00a0\u00a0\u00a0<span class=\"attribute\">android:orientation<\/span>=<span class=\"attribute-value\">&#8220;vertical&#8221;<\/span><span class=\"tag\">&gt;<\/span><\/li>\n<li class=\"\">\u00a0\u00a0\u00a0\u00a0<span class=\"tag\">&lt;<\/span><span class=\"tag-name\">LinearLayout<\/span><\/li>\n<li class=\"alt\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<span class=\"attribute\">android:layout_width<\/span>=<span class=\"attribute-value\">&#8220;fill_parent&#8221;<\/span><\/li>\n<li class=\"\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<span class=\"attribute\">android:layout_height<\/span>=<span class=\"attribute-value\">&#8220;wrap_content&#8221;<\/span><\/li>\n<li class=\"alt\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<span class=\"attribute\">android:orientation<\/span>=<span class=\"attribute-value\">&#8220;horizontal&#8221;<\/span><\/li>\n<li class=\"\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<span class=\"attribute\">android:layout_marginBottom<\/span>=<span class=\"attribute-value\">&#8220;20dip&#8221;<\/span>\u00a0<span class=\"tag\">&gt;<\/span><\/li>\n<li class=\"alt\"><\/li>\n<li class=\"\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<span class=\"tag\">&lt;<\/span><span class=\"tag-name\">TextView<\/span><\/li>\n<li class=\"alt\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<span class=\"attribute\">android:layout_width<\/span>=<span class=\"attribute-value\">&#8220;wrap_content&#8221;<\/span><\/li>\n<li class=\"\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<span class=\"attribute\">android:layout_height<\/span>=<span class=\"attribute-value\">&#8220;wrap_content&#8221;<\/span><\/li>\n<li class=\"alt\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<span class=\"attribute\">android:layout_weight<\/span>=<span class=\"attribute-value\">&#8220;1&#8221;<\/span><\/li>\n<li class=\"\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<span class=\"attribute\">android:background<\/span>=<span class=\"attribute-value\">&#8220;#F00&#8221;<\/span><\/li>\n<li class=\"alt\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<span class=\"attribute\">android:text<\/span>=<span class=\"attribute-value\">&#8220;TextView1&#8221;<\/span><\/li>\n<li class=\"\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<span class=\"attribute\">android:textSize<\/span>=<span class=\"attribute-value\">&#8220;23sp&#8221;<\/span><\/li>\n<li class=\"alt\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<span class=\"attribute\">android:visibility<\/span>=<span class=\"attribute-value\">&#8220;visible&#8221;<\/span>\u00a0<span class=\"tag\">\/&gt;<\/span><\/li>\n<li class=\"\"><\/li>\n<li class=\"alt\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<span class=\"tag\">&lt;<\/span><span class=\"tag-name\">TextView<\/span><\/li>\n<li class=\"\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<span class=\"attribute\">android:id<\/span>=<span class=\"attribute-value\">&#8220;@+id\/mainTV2&#8221;<\/span><\/li>\n<li class=\"alt\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<span class=\"attribute\">android:layout_width<\/span>=<span class=\"attribute-value\">&#8220;wrap_content&#8221;<\/span><\/li>\n<li class=\"\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<span class=\"attribute\">android:layout_height<\/span>=<span class=\"attribute-value\">&#8220;wrap_content&#8221;<\/span><\/li>\n<li class=\"alt\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<span class=\"attribute\">android:layout_weight<\/span>=<span class=\"attribute-value\">&#8220;1&#8221;<\/span><\/li>\n<li class=\"\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<span class=\"attribute\">android:background<\/span>=<span class=\"attribute-value\">&#8220;#00F&#8221;<\/span><\/li>\n<li class=\"alt\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<span class=\"attribute\">android:text<\/span>=<span class=\"attribute-value\">&#8220;TextView2&#8221;<\/span><\/li>\n<li class=\"\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<span class=\"attribute\">android:textSize<\/span>=<span class=\"attribute-value\">&#8220;23sp&#8221;<\/span><\/li>\n<li class=\"alt\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<span class=\"attribute\">android:visibility<\/span>=<span class=\"attribute-value\">&#8220;visible&#8221;<\/span>\u00a0<span class=\"tag\">\/&gt;<\/span><\/li>\n<li class=\"\">\u00a0\u00a0\u00a0\u00a0<span class=\"tag\">&lt;\/<\/span><span class=\"tag-name\">LinearLayout<\/span><span class=\"tag\">&gt;<\/span><\/li>\n<li class=\"alt\"><\/li>\n<li class=\"\">\u00a0\u00a0\u00a0\u00a0<span class=\"tag\">&lt;<\/span><span class=\"tag-name\">Button<\/span><\/li>\n<li class=\"alt\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<span class=\"attribute\">android:id<\/span>=<span class=\"attribute-value\">&#8220;@+id\/mainBtn1&#8221;<\/span><\/li>\n<li class=\"\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<span class=\"attribute\">android:layout_width<\/span>=<span class=\"attribute-value\">&#8220;fill_parent&#8221;<\/span><\/li>\n<li class=\"alt\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<span class=\"attribute\">android:layout_height<\/span>=<span class=\"attribute-value\">&#8220;wrap_content&#8221;<\/span><\/li>\n<li class=\"\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<span class=\"attribute\">android:text<\/span>=<span class=\"attribute-value\">&#8220;TextView2\u4e3aVISIBLE&#8221;<\/span><\/li>\n<li class=\"alt\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<span class=\"attribute\">android:onClick<\/span>=<span class=\"attribute-value\">&#8220;mianOnClickListener&#8221;<\/span><span class=\"tag\">\/&gt;<\/span><\/li>\n<li class=\"\"><\/li>\n<li class=\"alt\">\u00a0\u00a0\u00a0\u00a0<span class=\"tag\">&lt;<\/span><span class=\"tag-name\">Button<\/span><\/li>\n<li class=\"\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<span class=\"attribute\">android:id<\/span>=<span class=\"attribute-value\">&#8220;@+id\/mainBtn2&#8221;<\/span><\/li>\n<li class=\"alt\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<span class=\"attribute\">android:layout_width<\/span>=<span class=\"attribute-value\">&#8220;fill_parent&#8221;<\/span><\/li>\n<li class=\"\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<span class=\"attribute\">android:layout_height<\/span>=<span class=\"attribute-value\">&#8220;wrap_content&#8221;<\/span><\/li>\n<li class=\"alt\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<span class=\"attribute\">android:text<\/span>=<span class=\"attribute-value\">&#8220;TextView2\u4e3aINVISIBLE&#8221;<\/span><\/li>\n<li class=\"\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<span class=\"attribute\">android:onClick<\/span>=<span class=\"attribute-value\">&#8220;mianOnClickListener&#8221;<\/span><span class=\"tag\">\/&gt;<\/span><\/li>\n<li class=\"alt\"><\/li>\n<li class=\"\">\u00a0\u00a0\u00a0\u00a0<span class=\"tag\">&lt;<\/span><span class=\"tag-name\">Button<\/span><\/li>\n<li class=\"alt\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<span class=\"attribute\">android:id<\/span>=<span class=\"attribute-value\">&#8220;@+id\/mainBtn3&#8221;<\/span><\/li>\n<li class=\"\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<span class=\"attribute\">android:layout_width<\/span>=<span class=\"attribute-value\">&#8220;fill_parent&#8221;<\/span><\/li>\n<li class=\"alt\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<span class=\"attribute\">android:layout_height<\/span>=<span class=\"attribute-value\">&#8220;wrap_content&#8221;<\/span><\/li>\n<li class=\"\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<span class=\"attribute\">android:text<\/span>=<span class=\"attribute-value\">&#8220;TextView2\u4e3aGONE&#8221;<\/span><\/li>\n<li class=\"alt\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<span class=\"attribute\">android:onClick<\/span>=<span class=\"attribute-value\">&#8220;mianOnClickListener&#8221;<\/span><span class=\"tag\">\/&gt;<\/span><\/li>\n<li class=\"\"><span class=\"tag\">&lt;\/<\/span><span class=\"tag-name\">LinearLayout<\/span><span class=\"tag\">&gt;<\/span><\/li>\n<\/ol>\n<\/div>\n<p>\u540e\u9762\u4e09\u4e2aButton\u53ea\u8981\u662f\u63a7\u5236TextView\u7684visibility\u7684\u5c5e\u6027<\/p>\n<p>Java\u4ee3\u7801\uff1a<\/p>\n<div class=\"dp-highlighter bg_java\">\n<div class=\"bar\">\n<div class=\"tools\"><b>[java]<\/b> <a class=\"ViewSource\" title=\"view plain\" href=\"http:\/\/blog.csdn.net\/chindroid\/article\/details\/8000713#\">view plain<\/a><span class=\"tracking-ad\"><span class=\"tracking-ad\"> <a class=\"CopyToClipboard\" title=\"copy\" href=\"http:\/\/blog.csdn.net\/chindroid\/article\/details\/8000713#\" target=\"_blank\">copy<\/a><\/span><\/span><\/p>\n<div><\/div>\n<\/div>\n<\/div>\n<ol class=\"dp-j\" start=\"1\">\n<li class=\"alt\"><span class=\"keyword\">package<\/span>\u00a0com.chindroid.visibility;<\/li>\n<li class=\"\"><\/li>\n<li class=\"alt\"><span class=\"keyword\">import<\/span>\u00a0android.app.Activity;<\/li>\n<li class=\"\"><span class=\"keyword\">import<\/span>\u00a0android.os.Bundle;<\/li>\n<li class=\"alt\"><span class=\"keyword\">import<\/span>\u00a0android.view.View;<\/li>\n<li class=\"\"><span class=\"keyword\">import<\/span>\u00a0android.widget.TextView;<\/li>\n<li class=\"alt\"><\/li>\n<li class=\"\"><span class=\"keyword\">public<\/span>\u00a0<span class=\"keyword\">class<\/span>\u00a0MainActivity\u00a0<span class=\"keyword\">extends<\/span>\u00a0Activity\u00a0{<\/li>\n<li class=\"alt\">\u00a0\u00a0\u00a0\u00a0<span class=\"comment\">\/**\u00a0TextView2\u00a0*\/<\/span><\/li>\n<li class=\"\">\u00a0\u00a0\u00a0\u00a0<span class=\"keyword\">private<\/span>\u00a0TextView\u00a0mainTV2\u00a0=\u00a0<span class=\"keyword\">null<\/span>;<\/li>\n<li class=\"alt\"><\/li>\n<li class=\"\">\u00a0\u00a0\u00a0\u00a0<span class=\"annotation\">@Override<\/span><\/li>\n<li class=\"alt\">\u00a0\u00a0\u00a0\u00a0<span class=\"keyword\">public<\/span>\u00a0<span class=\"keyword\">void<\/span>\u00a0onCreate(Bundle\u00a0savedInstanceState)\u00a0{<\/li>\n<li class=\"\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<span class=\"keyword\">super<\/span>.onCreate(savedInstanceState);<\/li>\n<li class=\"alt\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0setContentView(R.layout.main);<\/li>\n<li class=\"\"><\/li>\n<li class=\"alt\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<span class=\"comment\">\/\/\u521d\u59cb\u5316\u6570\u636e<\/span><\/li>\n<li class=\"\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0initData();<\/li>\n<li class=\"alt\">\u00a0\u00a0\u00a0\u00a0}<\/li>\n<li class=\"\"><\/li>\n<li class=\"alt\">\u00a0\u00a0\u00a0\u00a0<span class=\"comment\">\/**\u00a0\u521d\u59cb\u5316\u63a7\u4ef6\u7684\u65b9\u6cd5\u00a0*\/<\/span><\/li>\n<li class=\"\">\u00a0\u00a0\u00a0\u00a0<span class=\"keyword\">private<\/span>\u00a0<span class=\"keyword\">void<\/span>\u00a0initData()\u00a0{<\/li>\n<li class=\"alt\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0mainTV2\u00a0=\u00a0(TextView)findViewById(R.id.mainTV2);<\/li>\n<li class=\"\">\u00a0\u00a0\u00a0\u00a0}<\/li>\n<li class=\"alt\"><\/li>\n<li class=\"\">\u00a0\u00a0\u00a0\u00a0<span class=\"comment\">\/**<\/span><\/li>\n<li class=\"alt\"><span class=\"comment\">\u00a0\u00a0\u00a0\u00a0\u00a0*\u00a0MainActivity\u4e2d\u54cd\u5e94\u6309\u94ae\u70b9\u51fb\u4e8b\u4ef6\u7684\u65b9\u6cd5<\/span><\/li>\n<li class=\"\"><span class=\"comment\">\u00a0\u00a0\u00a0\u00a0\u00a0*\u00a0<\/span><\/li>\n<li class=\"alt\"><span class=\"comment\">\u00a0\u00a0\u00a0\u00a0\u00a0*\u00a0@param\u00a0v<\/span><\/li>\n<li class=\"\"><span class=\"comment\">\u00a0\u00a0\u00a0\u00a0\u00a0*\/<\/span><\/li>\n<li class=\"alt\">\u00a0\u00a0\u00a0\u00a0<span class=\"keyword\">public<\/span>\u00a0<span class=\"keyword\">void<\/span>\u00a0mianOnClickListener(View\u00a0v){<\/li>\n<li class=\"\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<span class=\"keyword\">switch<\/span>\u00a0(v.getId()){<\/li>\n<li class=\"alt\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<span class=\"keyword\">case<\/span>\u00a0R.id.mainBtn1:{\u00a0\u00a0\u00a0\u00a0<span class=\"comment\">\/\/\u6309\u94ae1\u7684\u54cd\u5e94\u4e8b\u4ef6<\/span><\/li>\n<li class=\"\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<span class=\"comment\">\/\/\u8bbe\u7f6eTextView2\u53ef\u89c1<\/span><\/li>\n<li class=\"alt\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0mainTV2.setVisibility(View.VISIBLE);<\/li>\n<li class=\"\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<span class=\"keyword\">break<\/span>;<\/li>\n<li class=\"alt\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}<\/li>\n<li class=\"\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<span class=\"keyword\">case<\/span>\u00a0R.id.mainBtn2:{\u00a0\u00a0\u00a0\u00a0<span class=\"comment\">\/\/\u6309\u94ae2\u7684\u54cd\u5e94\u4e8b\u4ef6<\/span><\/li>\n<li class=\"alt\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<span class=\"comment\">\/\/\u8bbe\u7f6eTextView2\u4e0d\u53ef\u89c1<\/span><\/li>\n<li class=\"\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0mainTV2.setVisibility(View.INVISIBLE);<\/li>\n<li class=\"alt\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<span class=\"keyword\">break<\/span>;<\/li>\n<li class=\"\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}<\/li>\n<li class=\"alt\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<span class=\"keyword\">case<\/span>\u00a0R.id.mainBtn3:{\u00a0\u00a0\u00a0\u00a0<span class=\"comment\">\/\/\u6309\u94ae3\u7684\u54cd\u5e94\u4e8b\u4ef6<\/span><\/li>\n<li class=\"\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<span class=\"comment\">\/\/\u8bbe\u7f6eTextView2\u9690\u85cf<\/span><\/li>\n<li class=\"alt\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0mainTV2.setVisibility(View.GONE);<\/li>\n<li class=\"\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<span class=\"keyword\">break<\/span>;<\/li>\n<li class=\"alt\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}<\/li>\n<li class=\"\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<span class=\"keyword\">default<\/span>:<\/li>\n<li class=\"alt\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<span class=\"keyword\">break<\/span>;<\/li>\n<li class=\"\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}<\/li>\n<li class=\"alt\">\u00a0\u00a0\u00a0\u00a0}<\/li>\n<li class=\"\">}<\/li>\n<\/ol>\n<\/div>\n<p>\u7531\u4e8e\u7a0b\u5e8f\u4e00\u542f\u52a8\u4e24\u4e2aTextView\u90fd\u662f\u53ef\u89c1\u7684<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/img.my.csdn.net\/uploads\/201209\/20\/1348129117_1546.jpg\" alt=\"\" \/><\/p>\n<p>\u5f53\u6211\u4eec\u70b9\u51fb\u7b2c1\u4e2a\u6309\u94ae\uff0c\u628aTextView2visibility\u5c5e\u6027\u8bbe\u7f6e\u4e3aINVISIBLE\u65f6\uff0c\u7a0b\u5e8f\u5982\u4e0b\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/img.my.csdn.net\/uploads\/201209\/20\/1348129122_5145.jpg\" alt=\"\" \/><\/p>\n<p>\u5f53\u6211\u4eec\u70b9\u51fb\u7b2c3\u4e2a\u6309\u94ae\uff0c\u628aTextView2visibility\u5c5e\u6027\u8bbe\u7f6e\u4e3aGONE\u65f6\uff0c\u7a0b\u5e8f\u5982\u4e0b\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/img.my.csdn.net\/uploads\/201209\/20\/1348129126_3369.jpg\" alt=\"\" \/><\/p>\n<p>\u5f53\u6211\u4eec\u518d\u70b9\u51fb\u7b2c1\u4e2a\u6309\u94ae\uff0c\u628aTextView2visibility\u5c5e\u6027\u8bbe\u7f6e\u4e3aVISIBLE\u65f6\uff0cTextView2\u53c8\u5448\u73b0\u51fa\u6765\u4e86\uff0c\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/img.my.csdn.net\/uploads\/201209\/20\/1348129117_1546.jpg\" alt=\"\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>\u7531\u4e0a\u9762\u7684\u6f14\u793a\u53ef\u77e5<\/p>\n<p>VISIBLE\uff1a\u8bbe\u7f6e\u63a7\u4ef6\u53ef\u89c1<\/p>\n<p>INVISIBLE\uff1a\u8bbe\u7f6e\u63a7\u4ef6\u4e0d\u53ef\u89c1<\/p>\n<p>GONE\uff1a\u8bbe\u7f6e\u63a7\u4ef6\u9690\u85cf<\/p>\n<p>&nbsp;<\/p>\n<p>\u800cINVISIBLE\u548cGONE\u7684\u4e3b\u8981\u533a\u522b\u662f\uff1a\u5f53\u63a7\u4ef6visibility\u5c5e\u6027\u4e3aINVISIBLE\u65f6\uff0c\u754c\u9762\u4fdd\u7559\u4e86view\u63a7\u4ef6\u6240\u5360\u6709\u7684\u7a7a\u95f4\uff1b\u800c\u63a7\u4ef6\u5c5e\u6027\u4e3aGONE\u65f6\uff0c\u754c\u9762\u5219\u4e0d\u4fdd\u7559view\u63a7\u4ef6\u6240\u5360\u6709\u7684\u7a7a\u95f4\u3002<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>http:\/\/android-developers.blogspot.in\/20 &hellip; <a href=\"https:\/\/blog.zhenglei.net\/?p=255435\">\u7ee7\u7eed\u9605\u8bfb <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18],"tags":[58],"class_list":["post-255435","post","type-post","status-publish","format-standard","hentry","category-software-download","tag-android-2"],"_links":{"self":[{"href":"https:\/\/blog.zhenglei.net\/index.php?rest_route=\/wp\/v2\/posts\/255435","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.zhenglei.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.zhenglei.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.zhenglei.net\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.zhenglei.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=255435"}],"version-history":[{"count":3,"href":"https:\/\/blog.zhenglei.net\/index.php?rest_route=\/wp\/v2\/posts\/255435\/revisions"}],"predecessor-version":[{"id":255438,"href":"https:\/\/blog.zhenglei.net\/index.php?rest_route=\/wp\/v2\/posts\/255435\/revisions\/255438"}],"wp:attachment":[{"href":"https:\/\/blog.zhenglei.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=255435"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.zhenglei.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=255435"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.zhenglei.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=255435"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}