{"id":204366,"date":"2023-08-16T12:05:40","date_gmt":"2023-08-16T04:05:40","guid":{"rendered":"https:\/\/www.idc.net\/help\/204366\/"},"modified":"2023-08-16T12:05:40","modified_gmt":"2023-08-16T04:05:40","slug":"android-listactivity%e5%ba%94%e7%94%a8%e6%8a%80%e5%b7%a7%e5%85%a8%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/idc.net\/help\/204366\/","title":{"rendered":"Android ListActivity\u5e94\u7528\u6280\u5de7\u5168\u89e3"},"content":{"rendered":"

\u4eca\u5929\u4e3a\u5927\u5bb6\u5e26\u6765\u7684\u662f\u6709\u5173Android ListActivity\u7684\u76f8\u5173\u5185\u5bb9\u7684\u4ecb\u7ecd\u3002\u6211\u4eec\u53ef\u4ee5\u4ece\u8fd9\u7bc7\u6587\u7ae0\u4e2d\u4ecb\u7ecd\u7684\u5185\u5bb9\u8be6\u7ec6\u7684\u5bf9\u8fd9\u4e00\u65b9\u9762\u7684\u77e5\u8bc6\u8fdb\u884c\u4e00\u4e2a\u5168\u9762\u7684\u8ba4\u8bc6\u3002\u9996\u5148\u770b\u770bandroid.app\u5305\u91cc\u7684\u51e0\u4e2a\u7c7b\u3002\u9996\u5148\u662f\u8fd9\u4e2a\u5728\u5e73\u53f0\u81ea\u7684\u4f8b\u5b50\u4e2d\u88ab\u5e7f\u6cdb\u4f7f\u7528\u7684Android ListActivity\u3002\u8fd9\u4e2a\u7c7b\u5176\u5b9e\u5c31\u662f\u4e00\u4e2a\u542b\u6709\u4e00\u4e2aListView\u7ec4\u4ef6\u7684Activity\u7c7b\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u5982\u679c\u6211\u4eec\u76f4\u63a5\u5728\u4e00\u4e2a\u666e\u901a\u7684Activity\u4e2d\u81ea\u5df1\u52a0\u4e00\u4e2aListView\u4e5f\u662f\u5b8c\u5168\u53ef\u4ee5\u53d6\u4ee3\u8fd9\u4e2aAndroid ListActivity\u7684\uff0c\u53ea\u662f\u5b83\u66f4\u65b9\u4fbf\u800c\u5df2\uff0c\u65b9\u4fbf\u5230\u4ec0\u4e48\u7a0b\u5ea6\u5462\uff1f\u6765\u505a\u4e2a\u4f8b\u5b50\u77a7\u77a7\u3002 <\/p>\n

\n \n \n 
    \n  \n  \n  
  1. public class HelloTwoB extends ListActivity   <\/span><\/span><\/li>\n  \n  \n  
  2. ...{   <\/span><\/li>\n  \n  \n  
  3. public void onCreate(Bundle icicle) ...{   <\/span><\/li>\n  \n  \n  
  4. super.onCreate(icicle);   <\/span><\/li>\n  \n  \n  
  5. setTheme(android.R.style.Theme_Dark);   <\/span><\/li>\n  \n  \n  
  6. setContentView(R.layout.mainb);   <\/span><\/li>\n  \n  \n  
  7. List<\/span><<\/span> <\/span>String<\/span>><\/span> <\/span>items<\/span> = <\/span>fillArray<\/span>();   <\/span><\/li>\n  \n  \n  
  8. ArrayAdapter<\/span><<\/span> <\/span>String<\/span>><\/span> <\/span>adapter<\/span> = <\/span>new<\/span> ArrayAdapter<\/span><<\/span> <\/span>String<\/span>>
    <\/span>(this,R.layout.list_row,items);   <\/span><\/li>\n  \n  \n  
  9. this.setListAdapter(adapter);   <\/span><\/li>\n  \n  \n  
  10. }   <\/span><\/li>\n  \n  \n  
  11. private List<\/span><<\/span> <\/span>String<\/span>><\/span> fillArray()   <\/span><\/li>\n  \n  \n  
  12. ...{   <\/span><\/li>\n  \n  \n  
  13. List<\/span><<\/span> <\/span>String<\/span>><\/span> <\/span>items<\/span> = <\/span>new<\/span> ArrayList<\/span><<\/span> <\/span>String<\/span>><\/span>();   <\/span><\/li>\n  \n  \n  
  14. items.add(\"\u65e5\u66dc\u65e5\");   <\/span><\/li>\n  \n  \n  
  15. items.add(\"\u6708\u66dc\u65e5\");   <\/span><\/li>\n  \n  \n  
  16. items.add(\"\u706b\u66dc\u65e5\");   <\/span><\/li>\n  \n  \n  
  17. items.add(\"\u6c34\u66dc\u65e5\");   <\/span><\/li>\n  \n  \n  
  18. items.add(\"\u6728\u66dc\u65e5\");   <\/span><\/li>\n  \n  \n  
  19. items.add(\"\u91d1\u66dc\u65e5\");   <\/span><\/li>\n  \n  \n  
  20. items.add(\"\u571f\u66dc\u65e5\");   <\/span><\/li>\n  \n  \n  
  21. return items;   <\/span><\/li>\n  \n  \n  
  22. }   <\/span><\/li>\n  \n  \n  
  23. @Override   <\/span><\/li>\n  \n  \n  
  24. protected void onListItemClick(ListView l, 
    View v, int position, long id)   <\/span><\/li>\n  \n  \n  
  25. ...{   <\/span><\/li>\n  \n  \n  
  26. TextView <\/span>txt<\/span> = (TextView)this.findViewById(R.id.text);   <\/span><\/li>\n  \n  \n  
  27. txt.setText(\"\u3042\u3059\u306f \"+l.getSelectedItem().toString()+\"\u3067\u3059\u3002\");   <\/span><\/li>\n  \n  \n  
  28. }   <\/span><\/li>\n  \n  \n  
  29. } <\/span><\/li>\n \n \n <\/ol><\/pre>\n
    \u7684\u786e\u53ef\u4ee5\u7b80\u5355\u5230\u53ea\u9700\u51c6\u5907\u4e00\u4e2aList\u5bf9\u8c61\u5e76\u501f\u52a9Adapter\u5c31\u53ef\u4ee5\u6784\u9020\u51fa\u4e00\u4e2a\u5217\u8868\u3002\u91cd\u8f7donListItemClick\u65b9\u6cd5\u53ef\u4ee5\u54cd\u5e94\u9009\u62e9\u4e8b\u4ef6\uff0c\u5229\u7528***\u4e2a\u53c2\u6570\u53ef\u4ee5\u8bbf\u95ee\u5230\u8fd9\u4e2aListView\u5b9e\u4f8b\u4ee5\u5f97\u5230\u9009\u4e2d\u7684\u6761\u76ee\u4fe1\u606f\u3002\u8fd9\u91cc\u6709\u4e00\u70b9\u8981\u8bf4\u660e\u7684\uff0c\u5c31\u662f\u5982\u679c\u66f4\u7b80\u5355\u7684\u8bdd\uff0c\u5176\u5b9e\u8fde\u90a3\u4e2asetContentView\u90fd\u53ef\u4ee5\u4e0d\u8981\u4e86\uff0cAndroid\u4e5f\u4f1a\u81ea\u52a8\u5e2e\u6211\u4eec\u6784\u9020\u51fa\u4e00\u4e2a\u5168\u5c4f\u7684\u5217\u8868\u3002\u4f46\u662f\u672c\u4f8b\u4e2d\u6211\u4eec\u9700\u8981\u4e00\u4e2aTextView\u6765\u663e\u793a\u9009\u4e2d\u7684\u6761\u76ee\uff0c\u6240\u4ee5\u6211\u4eec\u9700\u8981\u4e00\u4e2alayout.mainb\u63cf\u8ff0\u4e00\u4e0b\u8fd9\u4e2a\u5217\u8868\u7a97\u53e3\u3002<\/p>\n
    \n \n \n 
      \n  \n  \n  
    1. <<\/span> ?xml <\/span>version<\/span>=<\/span>\"1.0\"<\/span> <\/span>encoding<\/span>=<\/span>\"utf-8\"<\/span>?><\/span>   <\/span><\/span><\/li>\n  \n  \n  
    2. <<\/span> <\/span>LinearLayout<\/span> <\/span>xmlns:android<\/span>=
      <\/span>\"http:\/\/schemas.android.com\/apk\/res\/android\"<\/span>   <\/span><\/li>\n  \n  \n  
    3. android:orientation<\/span>=<\/span>\"vertical\"<\/span>   <\/span><\/li>\n  \n  \n  
    4. android:layout_width<\/span>=<\/span>\"fill_parent\"<\/span>   <\/span><\/li>\n  \n  \n  
    5. android:layout_height<\/span>=<\/span>\"fill_parent\"<\/span>   <\/span><\/li>\n  \n  \n  
    6. ><\/span>   <\/span><\/li>\n  \n  \n  
    7. <<\/span> <\/span>TextView<\/span> <\/span>id<\/span>=<\/span>\"@+id\/text\"<\/span>   <\/span><\/li>\n  \n  \n  
    8. android:layout_width<\/span>=<\/span>\"fill_parent\"<\/span>   <\/span><\/li>\n  \n  \n  
    9. android:layout_height<\/span>=<\/span>\"wrap_content\"<\/span>   <\/span><\/li>\n  \n  \n  
    10. android:text<\/span>=<\/span>\"\"<\/span>   <\/span><\/li>\n  \n  \n  
    11. \/><\/span>   <\/span><\/li>\n  \n  \n  
    12. <<\/span> <\/span>ListView<\/span> <\/span>id<\/span>=<\/span>\"@id\/android:list\"<\/span>   <\/span><\/li>\n  \n  \n  
    13. android:layout_width<\/span>=<\/span>\"fill_parent\"<\/span>   <\/span><\/li>\n  \n  \n  
    14. android:layout_height<\/span>=<\/span>\"0dip\"<\/span>   <\/span><\/li>\n  \n  \n  
    15. android:layout_weight<\/span>=<\/span>\"1\"<\/span>   <\/span><\/li>\n  \n  \n  
    16. android:drawSelectorOnTop<\/span>=<\/span>\"false\"<\/span>   <\/span><\/li>\n  \n  \n  
    17. \/><\/span>   <\/span><\/li>\n  \n  \n  
    18. <<\/span> \/LinearLayout<\/span>><\/span>  <\/span><\/li>\n \n \n <\/ol><\/pre>\n
      \u5728Android ListActivity\u64cd\u4f5c\u4e2d\u9700\u8981\u6ce8\u610f\u7684\u662f\u90a3\u4e2aListView\u7684ID\uff0c\u662f\u7cfb\u7edf\u81ea\u5b9a\u4e49\u7684android:list\uff0c\u4e0d\u662f\u6211\u4eec\u968f\u4fbf\u53d6\u7684\uff0c\u5426\u5219\u7cfb\u7edf\u4f1a\u8bf4\u627e\u4e0d\u5230\u5b83\u60f3\u8981\u7684listview\u4e86\u3002\u7136\u540e\uff0c\u5728\u8fd9\u4e2alistview\u4e4b\u5916\uff0c\u6211\u4eec\u53c8\u589e\u52a0\u4e86\u4e00\u4e2aTextView\uff0c\u7528\u6765\u663e\u793a\u9009\u4e2d\u7684\u6761\u76ee\u3002<\/p>\n
      \u518d\u6765\u8bf4\u8bf4\u8fd9\u91cc\u7528\u5230\u7684ArrayAdapter\uff0c\u5b83\u7684\u6784\u9020\u51fd\u6570\u4e2d\u7b2c\u4e8c\u4e2a\u53c2\u6570\u662f\u4e00\u4e2a\u8d44\u6e90ID\uff0cArrayAdapter\u7684API\u6587\u6863\u4e2d\u8bf4\u662f\u8981\u6c42\u7528\u4e00\u4e2a\u5305\u542b TextView\u7684layout\u6587\u4ef6\uff0c\u5e73\u53f0\u7528\u5b83\u6765\u663e\u793a\u6bcf\u4e2a\u9009\u62e9\u6761\u76ee\u7684\u6837\u5f0f\uff0c\u8fd9\u91cc\u7684\u53d6\u503c\u662fR.layout.list_row\uff0c\u6240\u4ee5\uff0c\u6211\u4eec\u8fd8\u6709\u4e00\u4e2alist_row.xml\u6587\u4ef6\u6765\u63cf\u8ff0\u8fd9\u4e2a\u5e03\u5c40\uff0c\u76f8\u5f53\u7b80\u5355\u3002<\/p>\n
      \n \n \n 
        \n  \n  \n  
      1. <<\/span> ?xml <\/span>version<\/span>=<\/span>\"1.0\"<\/span> <\/span>encoding<\/span>=<\/span>\"utf-8\"<\/span>?><\/span>   <\/span><\/span><\/li>\n  \n  \n  
      2. <<\/span> <\/span>LinearLayout<\/span> <\/span>xmlns:android<\/span>=
        <\/span>\"http:\/\/schemas.android.com\/apk\/res\/android\"<\/span>   <\/span><\/li>\n  \n  \n  
      3. android:orientation<\/span>=<\/span>\"vertical\"<\/span>   <\/span><\/li>\n  \n  \n  
      4. android:layout_width<\/span>=<\/span>\"fill_parent\"<\/span>   <\/span><\/li>\n  \n  \n  
      5. android:layout_height<\/span>=<\/span>\"fill_parent\"<\/span>   <\/span><\/li>\n  \n  \n  
      6. ><\/span>   <\/span><\/li>\n  \n  \n  
      7. <<\/span> <\/span>TextView<\/span> <\/span>id<\/span>=<\/span>\"@+id\/item\"<\/span>   <\/span><\/li>\n  \n  \n  
      8. xmlns:android<\/span>=<\/span>\"http:\/\/schemas.android.com\/apk\/res\/android\"<\/span>   <\/span><\/li>\n  \n  \n  
      9. android:layout_width<\/span>=<\/span>\"wrap_content\"<\/span>   <\/span><\/li>\n  \n  \n  
      10. android:layout_height<\/span>=<\/span>\"wrap_content\"<\/span>\/><\/span>   <\/span><\/li>\n  \n  \n  
      11. <<\/span> <\/span>TextView<\/span> <\/span>id<\/span>=<\/span>\"@+id\/item2\"<\/span>   <\/span><\/li>\n  \n  \n  
      12. xmlns:android<\/span>=<\/span>\"http:\/\/schemas.android.com\/apk\/res\/android\"<\/span>   <\/span><\/li>\n  \n  \n  
      13. android:layout_width<\/span>=<\/span>\"wrap_content\"<\/span>   <\/span><\/li>\n  \n  \n  
      14. android:layout_height<\/span>=<\/span>\"wrap_content\"<\/span>\/><\/span>   <\/span><\/li>\n  \n  \n  
      15. <<\/span> \/LinearLayout<\/span>><\/span>  <\/span><\/li>\n \n \n <\/ol><\/pre>\n
        \u4eceArrayAdapter\u4e0a\u6eaf\u5230BaseAdapter\uff0c\u53d1\u73b0\u8fd8\u6709\u51e0\u4e2a\u540c\u6e90\u7684Adapter\u4e5f\u5e94\u8be5\u53ef\u4ee5\u4f7f\u7528\uff0c\u8c61SimpleAdapter\u548cCursorAdapter\uff0c\u8fd8\u662f\u505a\u4e2a\u4f8b\u5b50\u6765\u5b9e\u9a8c\u4e00\u4e0b\u5427\u3002<\/p>\n
        Android ListActivity\u7684\u76f8\u5173\u5185\u5bb9\u5c31\u4e3a\u5927\u5bb6\u4ecb\u7ecd\u5230\u8fd9\u91cc\u3002<\/p>\n
        \u3010\u7f16\u8f91\u63a8\u8350\u3011<\/p>\n
          \n
        1. Android Timer\u7f16\u5199\u65b9\u5f0f\u6df1\u89e3<\/li>\n
        2. Android SQLite\u6570\u636e\u5e93\u5e94\u7528\u6280\u5de7\u5206\u4eab<\/li>\n
        3. Android\u6a21\u62df\u5668\u5e94\u7528\u6280\u5de7\u8be6\u7ec6\u4ecb\u7ecd<\/li>\n
        4. Android\u753b\u56fe\u6280\u5de7\u5e94\u7528\u65b9\u5f0f\u5206\u6790<\/li>\n
        5. Android dialog\u5e94\u7528\u7ecf\u9a8c\u603b\u7ed3<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"
          \u4eca\u5929\u4e3a\u5927\u5bb6\u5e26\u6765\u7684\u662f\u6709\u5173Android ListActivity\u7684\u76f8\u5173\u5185\u5bb9\u7684\u4ecb\u7ecd\u3002\u6211\u4eec\u53ef\u4ee5\u4ece\u8fd9\u7bc7\u6587\u7ae0\u4e2d\u4ecb\u7ecd\u7684\u5185\u5bb9 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[195111],"tags":[],"class_list":["post-204366","post","type-post","status-publish","format-standard","hentry","category-android"],"_links":{"self":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/204366","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/comments?post=204366"}],"version-history":[{"count":0,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/204366\/revisions"}],"wp:attachment":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/media?parent=204366"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/categories?post=204366"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/tags?post=204366"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}