了解如何做到这一点。希望这可以帮助其他人。派对我的,部分来自其他职位。它旨在处理 .gcsb 文件附件。
意图过滤器是
<intent-filter>
<action android:name="android.intent.action.VIEW" />
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.BROWSABLE" />
<data android:mimeType="application/octet-stream" />
</intent-filter>
并且活动 onCreate() / onRestart() 中的代码是
Intent intent = getIntent();
InputStream is = null;
FileOutputStream os = null;
String fullPath = null;
try {
String action = intent.getAction();
if (!Intent.ACTION_VIEW.equals(action)) {
return;
}
Uri uri = intent.getData();
String scheme = uri.getScheme();
String name = null;
if (scheme.equals("file")) {
List<String> pathSegments = uri.getPathSegments();
if (pathSegments.size() > 0) {
name = pathSegments.get(pathSegments.size() - 1);
}
} else if (scheme.equals("content")) {
Cursor cursor = getContentResolver().query(uri, new String[] {
MediaStore.MediaColumns.DISPLAY_NAME
}, null, null, null);
cursor.moveToFirst();
int nameIndex = cursor.getColumnIndex(MediaStore.MediaColumns.DISPLAY_NAME);
if (nameIndex >= 0) {
name = cursor.getString(nameIndex);
}
} else {
return;
}
if (name == null) {
return;
}
int n = name.lastIndexOf(".");
String fileName, fileExt;
if (n == -1) {
return;
} else {
fileName = name.substring(0, n);
fileExt = name.substring(n);
if (!fileExt.equals(".gcsb")) {
return;
}
}
fullPath = ""/* create full path to where the file is to go, including name/ext */;
is = getContentResolver().openInputStream(uri);
os = new FileOutputStream(fullPath);
byte[] buffer = new byte[4096];
int count;
while ((count = is.read(buffer)) > 0) {
os.write(buffer, 0, count);
}
os.close();
is.close();
} catch (Exception e) {
if (is != null) {
try {
is.close();
} catch (Exception e1) {
}
}
if (os != null) {
try {
os.close();
} catch (Exception e1) {
}
}
if (fullPath != null) {
File f = new File(fullPath);
f.delete();
}
}
它似乎适用于标准的 Android gmail 和邮件应用程序。根据在 gmail 中是否按下“下载”(方案文件)或“预览”(方案内容),可以通过两种不同的方式获得文件名。
请注意,活动不设置为单实例非常重要。