OPhone开发之下载

核心提示：78. Uri.parse("content://downloads/download"), values);79. mDownloadCursor = query();80. DownloadObserver observer = new DownloadObserver();81. getCon

78. Uri.parse("content://downloads/download"), values);

79. mDownloadCursor = query();

80. DownloadObserver observer = new DownloadObserver();

81. getContentResolver()

82. .registerContentObserver(contentUri, true, observer);

83. };

84.

85. private void resume() {

86. ContentValues values = new ContentValues();

87. values.put("control", 0);

88. getContentResolver().update(contentUri, values, null, null);

89. };

90.

91. private void pause() {

92. ContentValues values = new ContentValues();

93. values.put("control", 10);

94. getContentResolver().update(contentUri, values, null, null);

95. };

96.

97. private void cancel() {

98. getContentResolver().delete(contentUri, null, null);

99. };

100.

101. private void retry() {

102. ContentValues values = new ContentValues();

103. values.put("control", 10);

104. values.put("status", 195);

105. getContentResolver().update(contentUri, values, null, null);

106. };

107.

108. private Cursor query() {

109. String selection = "_id = '" + ContentUris.parseId(contentUri) + "'";

110. return managedQuery(Uri.parse("content://downloads/download"),

111. new String[] { "total_bytes", "current_bytes" }, selection,

112. null, null);

113. }

114.

115. private int point = 0;

116.

117. private class DownloadObserver extends ContentObserver {

118. public DownloadObserver() {

119. super(new Handler());

120. }

121.

122. @Override

123. public void onChange(boolean flag) {

124. if (mDownloadCursor.getCount() < = 0) {