{"id":793,"date":"2009-11-13T22:51:52","date_gmt":"2009-11-13T14:51:52","guid":{"rendered":"http:\/\/www.impjq.net\/blog\/2009\/11\/13\/android-appwidget%e5%a6%82%e4%bd%95%e6%94%af%e6%8c%81%e5%a4%8d%e6%9d%82%e7%9a%84view\/"},"modified":"2009-11-13T22:51:52","modified_gmt":"2009-11-13T14:51:52","slug":"android-appwidget%e5%a6%82%e4%bd%95%e6%94%af%e6%8c%81%e5%a4%8d%e6%9d%82%e7%9a%84view","status":"publish","type":"post","link":"https:\/\/pjq.me\/?p=793","title":{"rendered":"Android AppWidget\u5982\u4f55\u652f\u6301\u590d\u6742\u7684View"},"content":{"rendered":"

\u5982\u679c\u770b\u4e0d\u60ef\u535a\u5ba2\u6392\u7248\uff0c\u8bf7\u70b9\u8fd9\u91cc<\/a>\u3002<\/p>\n

Android AppWidget\u5982\u4f55\u652f\u6301\u590d\u6742\u7684View<\/p>\n

\u4e00\u76f4\u60f3\u77e5\u9053\u5982\u4f55\u5728AppWidget\u91cc\u9762\u6dfb\u52a0 ListView,EditText \u8fd9\u4e9b\u590d\u6742\u7684View.\u6211\u4eec\u77e5\u9053\u8981\u5728AppWidget\u91cc\u6dfb\u52a0 View\u90fd\u662f\u901a\u8fc7RemoteView\u6765\u505a\u5230\u4e86\uff0c\u7136\u800cRemoteView\u672c\u8eab\u529f\u80fd\u5f88\u5f31\uff0c\u652f\u6301\u7684\u64cd\u4f5c\u5f88\u5c11\uff0c\u800c\u4e14\u652f\u6301RemoteView\u7684Widget\u5f88\u5c11:
\n\u5728Dev Guide\u4e2d\u6709\u4e0b\u9762\u8fd9\u6bb5\uff1a<\/p>\n

\n\nA RemoteViews object (and, consequently, an App Widget) can support the following layout classes:\n\n    * FrameLayout\n    * LinearLayout\n    * RelativeLayout\n\nAnd the following widget classes:\n\n    * AnalogClock\n    * Button\n    * Chronometer\n    * ImageButton\n    * ImageView\n    * ProgressBar\n    * TextView\n\nDescendants of these classes are not supported.\n<\/pre>\n
\u6240\u4ee5\u4ece\u8fd9\u91cc\u53ef\u4ee5\u77e5\u9053\uff0c\u4e3a\u4ec0\u4e48\u5728AppWidget\u91cc\u6dfb\u52a0EditText\u4f1a\u663e\u793aLoadError\u4e86\uff0c\u56e0\u4e3a\u672c\u8eab\u5b83\u5c31\u4e0d\u652f\u6301\u8fd9\u4e9b\u590d\u6742\u7684 Widget.<\/p>\n
<\/p>\n
\u4f46\u6211\u4eec\u53c8\u4f1a\u6709\u7591\u95ee\u4e86\uff0c\u4e3a\u4ec0\u4e48Google Search\u4f1a\u6709EditText\u5462\uff1f\u5176\u5b9e\u8fd9\u4e9b\u90fd\u662f\u5047\u8c61\uff0c\u5e76\u4e0d\u662fAppWidget\u652f\u6301EditText.<\/p>\n
\u5177\u4f53\u600e\u4e48\u56de\u4e8b\uff0c\u6211\u731c\u6709\u4e24\u79cd\u60c5\u51b5\uff1a<\/p>\n
1.\u4e00\u79cd\u786e\u5b9e\u662fEditText\u4f46\u786e\u4e0d\u662fAppWidget \u652f\u6301\u7684\uff0c\u800c\u662f\u96c6\u6210\u5230Home\u91cc\u9762\u53bb\u4e86\u3002<\/p>\n
\u5177\u4f53\u53ef\u4ee5\u53c2\u8003\u8fd9\u91cc\uff1ahttp:\/\/www.eoeandroid.com\/archiver\/tid-1729.html<\/p>\n
2.\u6700\u65b0\u7684SDK 1.6\u4e2d\uff0c\u663e\u793a\u5728\u684c\u9762\u7684EditText\u53ea\u662f\u4e00\u4e2aImageView,\u800c\u8fd9\u4e2aImageView\u7684\u80cc\u666f\u5c31\u662fEditText\u7684\u622a\u56fe\u4e86\u3002\u6211\u4eec\u70b9\u4e2d\u8fd9\u4e2a\u201cEditText\u201d\u540e\uff0c\u4f1a\u8c03\u8d77\u4e00\u4e2aActivity,<\/p>\n
\u800c\u8fd9\u4e2aActivity\u5c31\u662f\u590d\u6742\u8f93\u5165\u7684EditText\uff0c\u5e76\u4e14\u4f1a\u5168\u5c4f\u663e\u793a\u3002\u6240\u4ee5\u6211\u4eec\u5c31\u8bef\u4ee5\u4f1a\u90a3\u662f\u4e00\u4e2a\u5355\u7eaf\u7684EditText.<\/p>\n
\u6700\u8fd1\u770b\u8fc7HTC Hero Sense UI\u7684\u4eba\u90fd\u770b\u5230\u4e86\uff0c\u5b83\u7684AppWidget\u662f\u786e\u5b9e\u652f\u6301\u590d\u6742Widget\u7684\uff0c\u6bd4\u5982\uff1aBookmark Widget:ListView\/GridView,Twitter Widget:EditText. \u8fd9\u4e9b\u786e\u5b9e\u662f\u6211\u4eec\u53ef\u4ee5\u770b\u5230\u7684\uff0c\u4f46\u5b83\u662f\u600e\u4e48\u505a\u5230\u7684\u5462\uff1f\u6211\u4e5f\u5f88\u60f3\u77e5\u9053\uff0cAppWidget\u652f\u6301\u5230\u90a3\u4e48\u5f3a\u5927\uff0c\u751a\u81f3\u8d85\u8fc7\u4e86\u672c\u8eabAP\u7684\u529f\u80fd\uff0c\u5f88\u62a2\u773c\u3002\u4f46\u4e0d\u7ba1\u662f\u600e\u4e48\u5b9e\u73b0\u7684\uff0c\u6211\u60f3\u4eba\u5bb6\u80af\u5b9a\u662f\u82b1\u4e86\u5927\u529b\u6c14\u53bb\u505a\u5230\u4e86\uff0c\u6211\u731c\u60f3\u53ef\u80fd\u662f\u5c06Google \u63d0\u4f9b\u7684AppWidget\u8fdb\u884c\u4e86\u6bd4\u8f83\u5927\u7684\u6539\u52a8\u3002\u6211\u4eec\u67e5\u770b\u4e00\u4e0bframework\u4e0b\u7684appwidget:<\/p>\n
\npjq@gentoo-pjq ~\/android\/donut $ ls frameworks\/base\/core\/java\/android\/appwidget\/ -lh\ntotal 60K\n-rw-r--r-- 1 pjq users 7.9K 2009-09-29 21:49 AppWidgetHost.java\n-rw-r--r-- 1 pjq users  12K 2009-09-29 21:49 AppWidgetHostView.java\n-rw-r--r-- 1 pjq users  14K 2009-09-29 21:49 AppWidgetManager.java\n-rw-r--r-- 1 pjq users  691 2009-09-29 21:49 AppWidgetProviderInfo.aidl\n-rw-r--r-- 1 pjq users 5.6K 2009-09-29 21:49 AppWidgetProviderInfo.java\n-rwxr-xr-x 1 pjq users 6.3K 2009-09-29 21:49 AppWidgetProvider.java\n-rw-r--r-- 1 pjq users 1.5K 2009-09-29 21:49 package.html\n<\/pre>\n
\u53ef\u4ee5\u770b\u5230\uff0cappwidget\u7684\u6587\u4ef6\u5f88\u5c11\uff0c\u867d\u7136\u4e0d\u80fd\u8bf4\u660e\u4ec0\u4e48\uff0c\u4f46\u6309\u7167\u6b63\u5e38\u7684\u63a8\u7406\uff0c\u6587\u4ef6\u5c11\u529f\u80fd\u4e00\u822c\u4e5f\u5f3a\u5927\u4e0d\u5230\u54ea\u91cc\u53bb\uff0c\u8fd9\u79cd\u60f3\u6cd5\u867d\u7136\u6709\u4e9b\u7275\u5f3a\uff0c\u4f46\u6682\u4e14\u5c31\u8fd9\u6837\u8ba4\u4e3a\u5427\u3002<\/p>\n
\u6240\u4ee5\u6211\u60f3HTC\u4e00\u5b9a\u662f\u5c06\u8fd9\u91cc\u7ed9\u6539\u52a8\u4e86\uff0c\u4ee5\u652f\u6301\u590d\u6742\u7684Widget,\u6709\u77e5\u9053\u5185\u60c5\u7684\u900f\u9732\u4e00\u70b9\u6700\u597d\u4e86\u3002<\/p>\n
\u8981\u77e5\u9053RemoteView\u7684\u529f\u80fd\u5f88\u5c11\uff0c\u7279\u522b\u662f\u5bf9\u4e8b\u4ef6\u5904\u7406\u7684\u80fd\u529b\uff0c\u90fd\u9700\u8981\u901a\u8fc7PendingIntent\uff0c\u4f20\u5230BroadcastReceiver\u53bb\u5904\u7406\u3002\u6240\u4ee5\u8fd9\u91cc\u5bf9\u4e00\u4e9b\u4e8b\u4ef6\u5904\u7406\u4e5f\u4ec5\u9650\u4e8e\u6bd4\u8f83\u7b80\u5355\u4e8b\u4ef6\uff1a\u6bd4\u5982\u8bf4\uff1aButton Clicked\uff0c\u5176\u5b83\u7684\u6211\u597d\u50cf\u8fd8\u6ca1\u600e\u4e48\u7528\u8fc7\uff0corz….  \u5bf9\u590d\u6742\u7684View:\u6bd4\u5982ListView(\u5f53\u7136\u8fd9\u91cc\u8fd8\u4e0d\u652f\u6301\uff0c\u6253\u4e2a\u6bd4\u65b9)\uff0cListView\u91cc\u9762\u90a3\u4e48\u591aItem,\u8981\u8bbe\u7f6eListener\uff0c\u8981\u4f20\u503c\uff0c\u8fd9\u4e9b RemoteView\u90fd\u4e0d\u80fd\u50cf\u4e00\u4e2a\u5355\u7eaf\u7684Activity\u90a3\u6837\u5904\u7406\uff0c\u5475\u5475 \uff0c\u626f\u8fdc\u4e86\uff0c\u5982\u679c\u80fd\u7684\u8bdd\uff0c\u6211\u4e5f\u5c31\u6ca1\u6709\u5fc5\u8981\u8fd9\u4e48\u8d39\u52b2\u7684\u5199\u8fd9\u7bc7\u535a\u5ba2\u4e86\u3002<\/p>\n
\u5199\u8fd9\u7bc7\u6587\u7ae0\u7684\u65f6\u5019\uff0c\u6211\u5df2\u7ecf\u5b9e\u73b0\u4e86\u5728 AppWidget\u91cc\u663e\u793aListView\/GridView\u8fd9\u4e9b\u590d\u6742\u7684Widget\u4e86\uff0c\u6211\u8fd9\u91cc\u53ea\u8bf4\u663e\u793a\uff0c\u5e76\u4e0d\u662f\u8bf4\u6211\u5df2\u7ecf\u80fd\u8ba9AppWidget\u652f\u6301 ListView\/GridView\u4e86\u3002\u6240\u4ee5\u6211\u8fd9\u91cc\u66f4\u503e\u5411\u4e8e\u6559\u4f60\u5982\u4f55\u5728AppWidget\u91cc\u652f\u6301\u663e\u793aListView\/GridView\u8fd9\u4e9b\u590d\u6742\u7684 Widget.<\/p>\n
\u6211\u4eec\u77e5\u9053AppWidget\u53ea\u652f\u6301RemoteView,\u90a3\u54ea\u4e9bWidget\u662fRemoteView\u5462\uff0c\u6211\u6765\u6559\u4f60\u641c\u4e00\u4e0b\uff1a<\/p>\n
\npjq@gentoo-pjq ~\/android\/donut\/frameworks\/base\/core\/java\/android\/widget $ grep -i -n -A 1  @remoteview *.java\nAbsoluteLayout.java:40:@RemoteView\nAbsoluteLayout.java-41-public class AbsoluteLayout extends ViewGroup {\n--\nAnalogClock.java:39:@RemoteView\nAnalogClock.java-40-public class AnalogClock extends View {\n--\nButton.java:58:@RemoteView\nButton.java-59-public class Button extends TextView {\n--\nChronometer.java:45:@RemoteView\nChronometer.java-46-public class Chronometer extends TextView {\n--\nFrameLayout.java:47:@RemoteView\nFrameLayout.java-48-public class FrameLayout extends ViewGroup {\n--\nImageButton.java:66:@RemoteView\nImageButton.java-67-public class ImageButton extends ImageView {\n--\nImageView.java:55:@RemoteView\nImageView.java-56-public class ImageView extends View {\u73b0\u5728\u6ca1\u4ec0\u4e48\u95ee\u9898\u3002\n--\nLinearLayout.java:44:@RemoteView\nLinearLayout.java-45-public class LinearLayout extends ViewGroup {\n--\nProgressBar.java:122:@RemoteView\nProgressBar.java-123-public class ProgressBar extends View {\n--\nRelativeLayout.java:66:@RemoteView\nRelativeLayout.java-67-public class RelativeLayout extends ViewGroup {\n--\nTextView.java:186:@RemoteView\nTextView.java-187-public class TextView extends View implements ViewTreeObserver.OnPreDrawListener {\n<\/pre>\n
\u5c31\u662f\u8fd9\u4e9b\u4e86\uff0c\u7c7b\u540d\u524d\u9762\u52a0\u4e86”@RemoteView”\uff0c\u548c\u6211\u524d\u9762\u5217\u51fa\u7684\u90a3\u4e9b\u662f\u4e0d\u662f\u4e00\u6837\u7684\u5462\uff1f–\u5bf9\u4e86\uff0c\u5c31\u662f\u8fd9\u4e9b\u4e86\uff0c\u6240\u4ee5\u4ee5\u540e\u4f60\u60f3\u77e5\u9053\u4f60\u5728AppWidget\u652f\u6301\u54ea\u4e9bWidget\u5c31\u53ef\u4ee5\u50cf\u6211\u8fd9\u6837\u53bb\u641c\u4e00\u4e0b\u5c31\u77e5\u9053\u4e86\uff0c\u8fd9\u6837\u6700\u9002\u65f6\u3002<\/p>\n
\u5199\u5230\u8fd9\u91cc\u6211\u5df2\u7ecf\u5c06\u6700\u5173\u952e\u7684\u5185\u5bb9\u90fd\u5df2\u7ecf\u5199\u51fa\u6765\u4e86\uff0c\u8fd8\u4e0d\u660e\u767d\uff1f<\/p>\n
\u5176\u5b9e\u7b80\u5355\u70b9\u8bb2\u5c31\u662f\u5728\u4e00\u4e2aWidget\u7c7b\u524d\u9762\u52a0\u4e0a”@RemoteView”,\u52a0\u4e0a\u4e86\u5b83\u5c31\u7b49\u4e8e\u8bf4RemoteView\u53ef\u4ee5\u652f\u6301\u5b83\uff0c RemoteView\u652f\u6301\u5c31\u7b49\u4e8e\u662fAppWidget\u652f\u6301\u8fd9\u5b83\u4e86\u3002<\/p>\n
\u597d\u4e86\uff0c\u73b0\u5728\u4f60\u53ea\u9700\u8981\u81ea\u5b9a\u4e49\u4e00\u4e9b\u4f60\u9700\u8981\u7684Widget\uff0c\u52a0\u4e0a”@RemoteView”\u6807\u8bb0\uff0c\u4f60\u5c31\u53ef\u4ee5\u5728AppWidget\u91cc\u4f7f\u7528\u5b83\u4e86\u3002<\/p>\n
\u5173\u4e8e\u5982\u4f55\u81ea\u5b9a\u4e49\u4e00\u4e2aWidget\u4f60\u5b8c\u5168\u53ef\u4ee5\u53c2\u7167frameworks\/base\/core\/java\/android\/widget\u5df2\u6709\u7684\u8fd9\u4e9bWidget.\u4f9d\u6837\u52a0\u4e00\u4e2a\u3002<\/p>\n
\u5176\u5b9e\u5982\u679c\u4f60\u9700\u8981\u81ea\u5b9a\u4e49\u4e00\u4e2aWidget\uff0c\u6bd4\u5982\u8bf4\u652f\u6301ListView,\u4f60\u53ef\u4ee5\u5148\u5728\u4e00\u4e2aactivity\u91cc\u5b9e\u73b0\u5b83\uff0c\u7136\u540e\u5c06\u5b83\u79fb\u5230framework\u4e0b\u9762\u53bb\u3002<\/p>\n
\u8fd9\u91cc\u8bf4\u4e00\u4e0b\u53ef\u80fd\u9700\u8981\u6ce8\u610f\u7684\u5730\u65b9\uff1a<\/p>\n
1.\u5982\u679c\u6709\u591a\u4e2a\u6587\u4ef6\uff0c\u9700\u8981Package\u7684\u65f6\u5019\uff0c\u540d\u5b57\u6700\u597d\u6309\u7167\u8fd9\u6837\u7684\u5f62\u5f0f\uff1aandroid.widget.bookmark<\/p>\n
\u5176\u4e2dbookmark\u5c31\u662f\u4f60\u8981\u6dfb\u52a0\u4e00\u4e2aWidget\u5b58\u653e\u7684\u5730\u65b9\uff0c\u8fd9\u6837\u7684\u8bdd\u4f60\u5c31\u53ef\u4ee5\u5728frameworks\/base\/core\/java\/android\/widget \u76ee\u5f55\u4e0b\u65b0\u589ebookmark\u6587\u4ef6\u5939\uff0c\u5c06java\u6587\u4ef6\u653e\u5728\u8fd9\u4e2a\u76ee\u5f55\u4e0b\u3002<\/p>\n
\u5982\u679c\u4f60\u65b0\u589e\u7684Widget\u53ea\u6709\u4e00\u4e2ajava\u6587\u4ef6\u5c31\u53ef\u4ee5\u4e0d\u7528\u8fd9\u6837\u4e86\uff0c\u53ef\u4ee5\u5b8c\u5168\u6309\u7167\u5df2\u7ecf\u5b58\u5728\u7684Widget\u7684\u6837\u5b50\uff0c\u76f4\u63a5\u5c06java\u6587\u4ef6\u653e\u5230frameworks\/base\/core\/java\/android\/widget\u76ee\u5f55\u4e0b\u3002<\/p>\n
2.\u8d44\u6e90\u6587\u4ef6\u5b58\u653e\uff1a<\/p>\n
frameworks\/base\/core\/res\/res<\/p>\n
\u8d44\u6e90\u6587\u4ef6\u90fd\u653e\u5230\u8fd9\u4e2a\u76ee\u5f55\u4e0b\u3002<\/p>\n
3.\u8d44\u6e90\u7684\u5f15\u7528\uff1a<\/p>\n
\u8981\u7528\u8fd9\u6837\u7684\u65b9\u5f0f\u5f15\u7528\uff1acom.android.internal.R.drawable.**<\/p>\n
4.\u8bb0\u7740\u5728\u8fd9\u4e2aCustomer Widget\u7c7b\u540d\u524d\u52a0\u4e0a”@RemoteView”\u6807\u8bb0.<\/p>\n
\u8fd9\u4e9b\u90fd\u505a\u5b8c\u4e86\uff0c\u4f60\u5c31\u5df2\u7ecf\u5c06\u4e00\u4e2a\u81ea\u5b9a\u4e49\u7684Widget\u6dfb\u52a0\u5230framework\u4e86\u3002\u4e4b\u540e\u8981\u505a\u7684\u5de5\u4f5c\u5c31\u662f\u7f16\u8bd1\u6574\u4e2a\u5de5\u7a0b\u4e86\uff0c\u91cd\u65b0\u751f\u6210SDK\u3002<\/p>\n
\u6700\u540e\u4f60\u5c31\u53ef\u4ee5\u5728AppWidget\u5f15\u7528\u4f60\u65b0\u52a0\u7684\u8fd9\u4e2aWidget\u4e86\uff1acom.widget.bookmark.***\u3002<\/p>\n
\u81f3\u6b64\uff0c\u4f60\u5df2\u7ecf\u7528\u4e0a\u4e86\u4f60\u65b0\u52a0\u7684\u8fd9\u4e2aWidget,\u5e76\u4e14\u53ef\u4ee5\u52a0\u5230AppWidget.<\/p>\n
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1.\u6784\u9020\u51fd\u6570\u521d\u59cb\u5316\u95ee\u9898\u3002<\/p>\n
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