ADD week 5

2025-03-31 16:33:42 +02:00
parent 86f265f22d
commit bf645048e6
4927 changed files with 544053 additions and 0 deletions
--- a/02-Easy5/E5/sources/androidx/documentfile/R.java
+++ b/02-Easy5/E5/sources/androidx/documentfile/R.java
@@ -0,0 +1,7 @@
+package androidx.documentfile;
+
+/* loaded from: classes.dex */
+public final class R {
+    private R() {
+    }
+}
--- a/02-Easy5/E5/sources/androidx/documentfile/provider/DocumentFile.java
+++ b/02-Easy5/E5/sources/androidx/documentfile/provider/DocumentFile.java
@@ -0,0 +1,77 @@
+package androidx.documentfile.provider;
+
+import android.content.Context;
+import android.net.Uri;
+import android.provider.DocumentsContract;
+import java.io.File;
+
+/* loaded from: classes.dex */
+public abstract class DocumentFile {
+    static final String TAG = "DocumentFile";
+    private final DocumentFile mParent;
+
+    public abstract boolean canRead();
+
+    public abstract boolean canWrite();
+
+    public abstract DocumentFile createDirectory(String str);
+
+    public abstract DocumentFile createFile(String str, String str2);
+
+    public abstract boolean delete();
+
+    public abstract boolean exists();
+
+    public abstract String getName();
+
+    public DocumentFile getParentFile() {
+        return this.mParent;
+    }
+
+    public abstract String getType();
+
+    public abstract Uri getUri();
+
+    public abstract boolean isDirectory();
+
+    public abstract boolean isFile();
+
+    public abstract boolean isVirtual();
+
+    public abstract long lastModified();
+
+    public abstract long length();
+
+    public abstract DocumentFile[] listFiles();
+
+    public abstract boolean renameTo(String str);
+
+    DocumentFile(DocumentFile documentFile) {
+        this.mParent = documentFile;
+    }
+
+    public static DocumentFile fromFile(File file) {
+        return new RawDocumentFile(null, file);
+    }
+
+    public static DocumentFile fromSingleUri(Context context, Uri uri) {
+        return new SingleDocumentFile(null, context, uri);
+    }
+
+    public static DocumentFile fromTreeUri(Context context, Uri uri) {
+        return new TreeDocumentFile(null, context, DocumentsContract.buildDocumentUriUsingTree(uri, DocumentsContract.getTreeDocumentId(uri)));
+    }
+
+    public static boolean isDocumentUri(Context context, Uri uri) {
+        return DocumentsContract.isDocumentUri(context, uri);
+    }
+
+    public DocumentFile findFile(String str) {
+        for (DocumentFile documentFile : listFiles()) {
+            if (str.equals(documentFile.getName())) {
+                return documentFile;
+            }
+        }
+        return null;
+    }
+}
--- a/02-Easy5/E5/sources/androidx/documentfile/provider/DocumentsContractApi19.java
+++ b/02-Easy5/E5/sources/androidx/documentfile/provider/DocumentsContractApi19.java
@@ -0,0 +1,137 @@
+package androidx.documentfile.provider;
+
+import android.content.ContentResolver;
+import android.content.Context;
+import android.database.Cursor;
+import android.net.Uri;
+import android.provider.DocumentsContract;
+import android.text.TextUtils;
+import android.util.Log;
+
+/* loaded from: classes.dex */
+class DocumentsContractApi19 {
+    private static final int FLAG_VIRTUAL_DOCUMENT = 512;
+    private static final String TAG = "DocumentFile";
+
+    public static boolean isVirtual(Context context, Uri uri) {
+        return DocumentsContract.isDocumentUri(context, uri) && (getFlags(context, uri) & 512) != 0;
+    }
+
+    public static String getName(Context context, Uri uri) {
+        return queryForString(context, uri, "_display_name", null);
+    }
+
+    private static String getRawType(Context context, Uri uri) {
+        return queryForString(context, uri, "mime_type", null);
+    }
+
+    public static String getType(Context context, Uri uri) {
+        String rawType = getRawType(context, uri);
+        if ("vnd.android.document/directory".equals(rawType)) {
+            return null;
+        }
+        return rawType;
+    }
+
+    public static long getFlags(Context context, Uri uri) {
+        return queryForLong(context, uri, "flags", 0L);
+    }
+
+    public static boolean isDirectory(Context context, Uri uri) {
+        return "vnd.android.document/directory".equals(getRawType(context, uri));
+    }
+
+    public static boolean isFile(Context context, Uri uri) {
+        String rawType = getRawType(context, uri);
+        return ("vnd.android.document/directory".equals(rawType) || TextUtils.isEmpty(rawType)) ? false : true;
+    }
+
+    public static long lastModified(Context context, Uri uri) {
+        return queryForLong(context, uri, "last_modified", 0L);
+    }
+
+    public static long length(Context context, Uri uri) {
+        return queryForLong(context, uri, "_size", 0L);
+    }
+
+    public static boolean canRead(Context context, Uri uri) {
+        return context.checkCallingOrSelfUriPermission(uri, 1) == 0 && !TextUtils.isEmpty(getRawType(context, uri));
+    }
+
+    public static boolean canWrite(Context context, Uri uri) {
+        if (context.checkCallingOrSelfUriPermission(uri, 2) != 0) {
+            return false;
+        }
+        String rawType = getRawType(context, uri);
+        int queryForInt = queryForInt(context, uri, "flags", 0);
+        if (TextUtils.isEmpty(rawType)) {
+            return false;
+        }
+        if ((queryForInt & 4) != 0) {
+            return true;
+        }
+        if (!"vnd.android.document/directory".equals(rawType) || (queryForInt & 8) == 0) {
+            return (TextUtils.isEmpty(rawType) || (queryForInt & 2) == 0) ? false : true;
+        }
+        return true;
+    }
+
+    public static boolean exists(Context context, Uri uri) {
+        Cursor cursor = null;
+        try {
+            cursor = context.getContentResolver().query(uri, new String[]{"document_id"}, null, null, null);
+            return cursor.getCount() > 0;
+        } catch (Exception e) {
+            Log.w(TAG, "Failed query: " + e);
+            return false;
+        } finally {
+            closeQuietly(cursor);
+        }
+    }
+
+    private static String queryForString(Context context, Uri uri, String str, String str2) {
+        ContentResolver contentResolver = context.getContentResolver();
+        Cursor cursor = null;
+        try {
+            cursor = contentResolver.query(uri, new String[]{str}, null, null, null);
+            return (!cursor.moveToFirst() || cursor.isNull(0)) ? str2 : cursor.getString(0);
+        } catch (Exception e) {
+            Log.w(TAG, "Failed query: " + e);
+            return str2;
+        } finally {
+            closeQuietly(cursor);
+        }
+    }
+
+    private static int queryForInt(Context context, Uri uri, String str, int i) {
+        return (int) queryForLong(context, uri, str, i);
+    }
+
+    private static long queryForLong(Context context, Uri uri, String str, long j) {
+        ContentResolver contentResolver = context.getContentResolver();
+        Cursor cursor = null;
+        try {
+            cursor = contentResolver.query(uri, new String[]{str}, null, null, null);
+            return (!cursor.moveToFirst() || cursor.isNull(0)) ? j : cursor.getLong(0);
+        } catch (Exception e) {
+            Log.w(TAG, "Failed query: " + e);
+            return j;
+        } finally {
+            closeQuietly(cursor);
+        }
+    }
+
+    private static void closeQuietly(AutoCloseable autoCloseable) {
+        if (autoCloseable != null) {
+            try {
+                autoCloseable.close();
+            } catch (RuntimeException e) {
+                throw e;
+            } catch (Exception unused) {
+            }
+        }
+    }
+
+    private DocumentsContractApi19() {
+    }
+}
--- a/02-Easy5/E5/sources/androidx/documentfile/provider/RawDocumentFile.java
+++ b/02-Easy5/E5/sources/androidx/documentfile/provider/RawDocumentFile.java
@@ -0,0 +1,155 @@
+package androidx.documentfile.provider;
+
+import android.net.Uri;
+import android.util.Log;
+import android.webkit.MimeTypeMap;
+import java.io.File;
+import java.io.IOException;
+import java.util.ArrayList;
+
+/* loaded from: classes.dex */
+class RawDocumentFile extends DocumentFile {
+    private File mFile;
+
+    @Override // androidx.documentfile.provider.DocumentFile
+    public boolean isVirtual() {
+        return false;
+    }
+
+    RawDocumentFile(DocumentFile documentFile, File file) {
+        super(documentFile);
+        this.mFile = file;
+    }
+
+    @Override // androidx.documentfile.provider.DocumentFile
+    public DocumentFile createFile(String str, String str2) {
+        String extensionFromMimeType = MimeTypeMap.getSingleton().getExtensionFromMimeType(str);
+        if (extensionFromMimeType != null) {
+            str2 = str2 + "." + extensionFromMimeType;
+        }
+        File file = new File(this.mFile, str2);
+        try {
+            file.createNewFile();
+            return new RawDocumentFile(this, file);
+        } catch (IOException e) {
+            Log.w("DocumentFile", "Failed to createFile: " + e);
+            return null;
+        }
+    }
+
+    @Override // androidx.documentfile.provider.DocumentFile
+    public DocumentFile createDirectory(String str) {
+        File file = new File(this.mFile, str);
+        if (file.isDirectory() || file.mkdir()) {
+            return new RawDocumentFile(this, file);
+        }
+        return null;
+    }
+
+    @Override // androidx.documentfile.provider.DocumentFile
+    public Uri getUri() {
+        return Uri.fromFile(this.mFile);
+    }
+
+    @Override // androidx.documentfile.provider.DocumentFile
+    public String getName() {
+        return this.mFile.getName();
+    }
+
+    @Override // androidx.documentfile.provider.DocumentFile
+    public String getType() {
+        if (this.mFile.isDirectory()) {
+            return null;
+        }
+        return getTypeForName(this.mFile.getName());
+    }
+
+    @Override // androidx.documentfile.provider.DocumentFile
+    public boolean isDirectory() {
+        return this.mFile.isDirectory();
+    }
+
+    @Override // androidx.documentfile.provider.DocumentFile
+    public boolean isFile() {
+        return this.mFile.isFile();
+    }
+
+    @Override // androidx.documentfile.provider.DocumentFile
+    public long lastModified() {
+        return this.mFile.lastModified();
+    }
+
+    @Override // androidx.documentfile.provider.DocumentFile
+    public long length() {
+        return this.mFile.length();
+    }
+
+    @Override // androidx.documentfile.provider.DocumentFile
+    public boolean canRead() {
+        return this.mFile.canRead();
+    }
+
+    @Override // androidx.documentfile.provider.DocumentFile
+    public boolean canWrite() {
+        return this.mFile.canWrite();
+    }
+
+    @Override // androidx.documentfile.provider.DocumentFile
+    public boolean delete() {
+        deleteContents(this.mFile);
+        return this.mFile.delete();
+    }
+
+    @Override // androidx.documentfile.provider.DocumentFile
+    public boolean exists() {
+        return this.mFile.exists();
+    }
+
+    @Override // androidx.documentfile.provider.DocumentFile
+    public DocumentFile[] listFiles() {
+        ArrayList arrayList = new ArrayList();
+        File[] listFiles = this.mFile.listFiles();
+        if (listFiles != null) {
+            for (File file : listFiles) {
+                arrayList.add(new RawDocumentFile(this, file));
+            }
+        }
+        return (DocumentFile[]) arrayList.toArray(new DocumentFile[arrayList.size()]);
+    }
+
+    @Override // androidx.documentfile.provider.DocumentFile
+    public boolean renameTo(String str) {
+        File file = new File(this.mFile.getParentFile(), str);
+        if (!this.mFile.renameTo(file)) {
+            return false;
+        }
+        this.mFile = file;
+        return true;
+    }
+
+    private static String getTypeForName(String str) {
+        int lastIndexOf = str.lastIndexOf(46);
+        if (lastIndexOf < 0) {
+            return "application/octet-stream";
+        }
+        String mimeTypeFromExtension = MimeTypeMap.getSingleton().getMimeTypeFromExtension(str.substring(lastIndexOf + 1).toLowerCase());
+        return mimeTypeFromExtension != null ? mimeTypeFromExtension : "application/octet-stream";
+    }
+
+    private static boolean deleteContents(File file) {
+        File[] listFiles = file.listFiles();
+        boolean z = true;
+        if (listFiles != null) {
+            for (File file2 : listFiles) {
+                if (file2.isDirectory()) {
+                    z &= deleteContents(file2);
+                }
+                if (!file2.delete()) {
+                    Log.w("DocumentFile", "Failed to delete " + file2);
+                    z = false;
+                }
+            }
+        }
+        return z;
+    }
+}
--- a/02-Easy5/E5/sources/androidx/documentfile/provider/SingleDocumentFile.java
+++ b/02-Easy5/E5/sources/androidx/documentfile/provider/SingleDocumentFile.java
@@ -0,0 +1,101 @@
+package androidx.documentfile.provider;
+
+import android.content.Context;
+import android.net.Uri;
+import android.provider.DocumentsContract;
+
+/* loaded from: classes.dex */
+class SingleDocumentFile extends DocumentFile {
+    private Context mContext;
+    private Uri mUri;
+
+    @Override // androidx.documentfile.provider.DocumentFile
+    public Uri getUri() {
+        return this.mUri;
+    }
+
+    SingleDocumentFile(DocumentFile documentFile, Context context, Uri uri) {
+        super(documentFile);
+        this.mContext = context;
+        this.mUri = uri;
+    }
+
+    @Override // androidx.documentfile.provider.DocumentFile
+    public DocumentFile createFile(String str, String str2) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override // androidx.documentfile.provider.DocumentFile
+    public DocumentFile createDirectory(String str) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override // androidx.documentfile.provider.DocumentFile
+    public String getName() {
+        return DocumentsContractApi19.getName(this.mContext, this.mUri);
+    }
+
+    @Override // androidx.documentfile.provider.DocumentFile
+    public String getType() {
+        return DocumentsContractApi19.getType(this.mContext, this.mUri);
+    }
+
+    @Override // androidx.documentfile.provider.DocumentFile
+    public boolean isDirectory() {
+        return DocumentsContractApi19.isDirectory(this.mContext, this.mUri);
+    }
+
+    @Override // androidx.documentfile.provider.DocumentFile
+    public boolean isFile() {
+        return DocumentsContractApi19.isFile(this.mContext, this.mUri);
+    }
+
+    @Override // androidx.documentfile.provider.DocumentFile
+    public boolean isVirtual() {
+        return DocumentsContractApi19.isVirtual(this.mContext, this.mUri);
+    }
+
+    @Override // androidx.documentfile.provider.DocumentFile
+    public long lastModified() {
+        return DocumentsContractApi19.lastModified(this.mContext, this.mUri);
+    }
+
+    @Override // androidx.documentfile.provider.DocumentFile
+    public long length() {
+        return DocumentsContractApi19.length(this.mContext, this.mUri);
+    }
+
+    @Override // androidx.documentfile.provider.DocumentFile
+    public boolean canRead() {
+        return DocumentsContractApi19.canRead(this.mContext, this.mUri);
+    }
+
+    @Override // androidx.documentfile.provider.DocumentFile
+    public boolean canWrite() {
+        return DocumentsContractApi19.canWrite(this.mContext, this.mUri);
+    }
+
+    @Override // androidx.documentfile.provider.DocumentFile
+    public boolean delete() {
+        try {
+            return DocumentsContract.deleteDocument(this.mContext.getContentResolver(), this.mUri);
+        } catch (Exception unused) {
+            return false;
+        }
+    }
+
+    @Override // androidx.documentfile.provider.DocumentFile
+    public boolean exists() {
+        return DocumentsContractApi19.exists(this.mContext, this.mUri);
+    }
+
+    @Override // androidx.documentfile.provider.DocumentFile
+    public DocumentFile[] listFiles() {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override // androidx.documentfile.provider.DocumentFile
+    public boolean renameTo(String str) {
+        throw new UnsupportedOperationException();
+    }
+}
--- a/02-Easy5/E5/sources/androidx/documentfile/provider/TreeDocumentFile.java
+++ b/02-Easy5/E5/sources/androidx/documentfile/provider/TreeDocumentFile.java
@@ -0,0 +1,162 @@
+package androidx.documentfile.provider;
+
+import android.content.ContentResolver;
+import android.content.Context;
+import android.database.Cursor;
+import android.net.Uri;
+import android.provider.DocumentsContract;
+import android.util.Log;
+import java.util.ArrayList;
+
+/* loaded from: classes.dex */
+class TreeDocumentFile extends DocumentFile {
+    private Context mContext;
+    private Uri mUri;
+
+    @Override // androidx.documentfile.provider.DocumentFile
+    public Uri getUri() {
+        return this.mUri;
+    }
+
+    TreeDocumentFile(DocumentFile documentFile, Context context, Uri uri) {
+        super(documentFile);
+        this.mContext = context;
+        this.mUri = uri;
+    }
+
+    @Override // androidx.documentfile.provider.DocumentFile
+    public DocumentFile createFile(String str, String str2) {
+        Uri createFile = createFile(this.mContext, this.mUri, str, str2);
+        if (createFile != null) {
+            return new TreeDocumentFile(this, this.mContext, createFile);
+        }
+        return null;
+    }
+
+    private static Uri createFile(Context context, Uri uri, String str, String str2) {
+        try {
+            return DocumentsContract.createDocument(context.getContentResolver(), uri, str, str2);
+        } catch (Exception unused) {
+            return null;
+        }
+    }
+
+    @Override // androidx.documentfile.provider.DocumentFile
+    public DocumentFile createDirectory(String str) {
+        Uri createFile = createFile(this.mContext, this.mUri, "vnd.android.document/directory", str);
+        if (createFile != null) {
+            return new TreeDocumentFile(this, this.mContext, createFile);
+        }
+        return null;
+    }
+
+    @Override // androidx.documentfile.provider.DocumentFile
+    public String getName() {
+        return DocumentsContractApi19.getName(this.mContext, this.mUri);
+    }
+
+    @Override // androidx.documentfile.provider.DocumentFile
+    public String getType() {
+        return DocumentsContractApi19.getType(this.mContext, this.mUri);
+    }
+
+    @Override // androidx.documentfile.provider.DocumentFile
+    public boolean isDirectory() {
+        return DocumentsContractApi19.isDirectory(this.mContext, this.mUri);
+    }
+
+    @Override // androidx.documentfile.provider.DocumentFile
+    public boolean isFile() {
+        return DocumentsContractApi19.isFile(this.mContext, this.mUri);
+    }
+
+    @Override // androidx.documentfile.provider.DocumentFile
+    public boolean isVirtual() {
+        return DocumentsContractApi19.isVirtual(this.mContext, this.mUri);
+    }
+
+    @Override // androidx.documentfile.provider.DocumentFile
+    public long lastModified() {
+        return DocumentsContractApi19.lastModified(this.mContext, this.mUri);
+    }
+
+    @Override // androidx.documentfile.provider.DocumentFile
+    public long length() {
+        return DocumentsContractApi19.length(this.mContext, this.mUri);
+    }
+
+    @Override // androidx.documentfile.provider.DocumentFile
+    public boolean canRead() {
+        return DocumentsContractApi19.canRead(this.mContext, this.mUri);
+    }
+
+    @Override // androidx.documentfile.provider.DocumentFile
+    public boolean canWrite() {
+        return DocumentsContractApi19.canWrite(this.mContext, this.mUri);
+    }
+
+    @Override // androidx.documentfile.provider.DocumentFile
+    public boolean delete() {
+        try {
+            return DocumentsContract.deleteDocument(this.mContext.getContentResolver(), this.mUri);
+        } catch (Exception unused) {
+            return false;
+        }
+    }
+
+    @Override // androidx.documentfile.provider.DocumentFile
+    public boolean exists() {
+        return DocumentsContractApi19.exists(this.mContext, this.mUri);
+    }
+
+    @Override // androidx.documentfile.provider.DocumentFile
+    public DocumentFile[] listFiles() {
+        ContentResolver contentResolver = this.mContext.getContentResolver();
+        Uri uri = this.mUri;
+        Uri buildChildDocumentsUriUsingTree = DocumentsContract.buildChildDocumentsUriUsingTree(uri, DocumentsContract.getDocumentId(uri));
+        ArrayList arrayList = new ArrayList();
+        Cursor cursor = null;
+        try {
+            try {
+                cursor = contentResolver.query(buildChildDocumentsUriUsingTree, new String[]{"document_id"}, null, null, null);
+                while (cursor.moveToNext()) {
+                    arrayList.add(DocumentsContract.buildDocumentUriUsingTree(this.mUri, cursor.getString(0)));
+                }
+            } catch (Exception e) {
+                Log.w("DocumentFile", "Failed query: " + e);
+            }
+            Uri[] uriArr = (Uri[]) arrayList.toArray(new Uri[arrayList.size()]);
+            DocumentFile[] documentFileArr = new DocumentFile[uriArr.length];
+            for (int i = 0; i < uriArr.length; i++) {
+                documentFileArr[i] = new TreeDocumentFile(this, this.mContext, uriArr[i]);
+            }
+            return documentFileArr;
+        } finally {
+            closeQuietly(cursor);
+        }
+    }
+
+    private static void closeQuietly(AutoCloseable autoCloseable) {
+        if (autoCloseable != null) {
+            try {
+                autoCloseable.close();
+            } catch (RuntimeException e) {
+                throw e;
+            } catch (Exception unused) {
+            }
+        }
+    }
+
+    @Override // androidx.documentfile.provider.DocumentFile
+    public boolean renameTo(String str) {
+        try {
+            Uri renameDocument = DocumentsContract.renameDocument(this.mContext.getContentResolver(), this.mUri, str);
+            if (renameDocument != null) {
+                this.mUri = renameDocument;
+                return true;
+            }
+        } catch (Exception unused) {
+        }
+        return false;
+    }
+}