本文介紹了在Android 11或更高版本中保存WhatsApp狀態(tài)的處理方法，對(duì)大家解決問(wèn)題具有一定的參考價(jià)值，需要的朋友們下面隨著小編來(lái)一起學(xué)習(xí)吧！
問(wèn)題描述
請(qǐng)指導(dǎo)我如何訪問(wèn)Android 11中的WhatsApp Status文件夾？
我在Play商店中看到過(guò)狀態(tài)保護(hù)應(yīng)用程序，它們不需要任何特殊許可，但仍然可以顯示狀態(tài)？
告訴我如何訪問(wèn)Android 11中的WhatsApp/Media/.Status文件夾？
推薦答案
如果您將DocumentTreeIntent設(shè)置為顯式允許對(duì)Android 11的WhatsApp文件夾的權(quán)限，則可以使用DocumentTreeIntent解決此問(wèn)題。以下是您可以執(zhí)行此操作的方法。
if (Constants.isPackageInstalled(getActivity(), "com.whatsapp")) {
Intent intent;
StorageManager sm = (StorageManager) getActivity().getSystemService(STORAGE_SERVICE);
String statusDir = getWhatsupFolder();
String str = "android.provider.extra.INITIAL_URI";
if (Build.VERSION.SDK_INT >= 29) {
intent = sm.getPrimaryStorageVolume().createOpenDocumentTreeIntent();
String scheme = ((Uri) intent.getParcelableExtra(str)).toString().replace("/root/", "/document/");
String stringBuilder = scheme +
"%3A" +
statusDir;
intent.putExtra(str, Uri.parse(stringBuilder));
} else {
intent = new Intent("android.intent.action.OPEN_DOCUMENT_TREE");
intent.putExtra(str, Uri.parse(statusDir));
}
intent.addFlags(2);
intent.addFlags(1);
intent.addFlags(128);
intent.addFlags(64);
startActivityForResult(intent, REQUEST_ACTION_OPEN_DOCUMENT_TREE);
return;
}
在使用此代碼之前，您必須檢查是否安裝了WhatsApp，因此第一個(gè)檢查是檢查，這是該代碼。
try {
context.getPackageManager().getPackageInfo(packageName, 0);
} catch (PackageManager.NameNotFoundException e) {
e.printStackTrace();
}
授予權(quán)限后，您必須通過(guò)此代碼檢索文件
private DocumentFile[] getFromSdcard() {
DocumentFile fromTreeUri = DocumentFile.fromTreeUri(requireContext().getApplicationContext(), Uri.parse(namedataprefs));
if (fromTreeUri != null && fromTreeUri.exists() && fromTreeUri.isDirectory() && fromTreeUri.canRead() && fromTreeUri.canWrite()) {
return fromTreeUri.listFiles();
}
return null;
}
DocumentFile[] allFiles = getFromSdcard();
//to get signal file path
String path = allFiles[0].getUri().toString();
您可以從下面的代碼中獲取有關(guān)文檔樹(shù)意圖的更多詳細(xì)信息，這只是為了便于理解
引用：How to check which StorageVolume we have access to, and which we don't?
requestAccessButton.setOnClickListener {
storageVolumes = storageManager.storageVolumes
val primaryVolume = storageManager.primaryStorageVolume
val intent = primaryVolume.createOpenDocumentTreeIntent()
startActivityForResult(intent, 1)
}
}
private fun checkAccessToStorageVolumes() {
val storageVolumePathsWeHaveAccessTo = HashSet<String>()
val persistedUriPermissions = contentResolver.persistedUriPermissions
persistedUriPermissions.forEach {
storageVolumePathsWeHaveAccessTo.add(it.uri.toString())
}
val storageManager = getSystemService(Context.STORAGE_SERVICE) as StorageManager
val storageVolumes = storageManager.storageVolumes
for (storageVolume in storageVolumes) {
val uuid = if (storageVolume.isPrimary) {
// Primary storage doesn't get a UUID here.
"primary"
} else {
storageVolume.uuid
}
val volumeUri = uuid?.let { buildVolumeUriFromUuid(it) }
when {
uuid == null ->
Log.d("AppLog", "UUID is null for ${storageVolume.getDescription(this)}!")
storageVolumePathsWeHaveAccessTo.contains(volumeUri) ->
Log.d("AppLog", "Have access to $uuid")
else -> Log.d("AppLog", "Don't have access to $uuid")
}
}
}
private fun buildVolumeUriFromUuid(uuid: String): String {
return DocumentsContract.buildTreeDocumentUri(
"com.android.externalstorage.documents",
"$uuid:"
).toString()
}
override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
super.onActivityResult(requestCode, resultCode, data)
Log.d("AppLog", "resultCode:$resultCode")
val uri = data?.data ?: return
val takeFlags =
Intent.FLAG_GRANT_READ_URI_PERMISSION or Intent.FLAG_GRANT_WRITE_URI_PERMISSION
contentResolver.takePersistableUriPermission(uri, takeFlags)
Log.d("AppLog", "granted uri: ${uri.path}")
}
這篇關(guān)于在Android 11或更高版本中保存WhatsApp狀態(tài)的文章就介紹到這了，希望我們推薦的答案對(duì)大家有所幫助，
