[DB] SQLite database editor

app/build.gradle

@@ -129,6 +129,8 @@ dependencies {
     // DB
     implementation "androidx.room:room-runtime:${room_version}"
     annotationProcessor "androidx.room:room-compiler:${room_version}"
+    implementation 'com.github.evrencoskun:TableView:v0.8.9.4'
+    implementation 'de.siegmar:fastcsv:2.2.1'
 
     // FM
     implementation "com.j256.simplemagic:simplemagic:${simplemagic_version}"

app/src/main/AndroidManifest.xml

@@ -718,6 +718,10 @@
             android:label="@string/files"
             android:launchMode="singleTop"
             android:taskAffinity="" />
+        <activity android:name=".sqlite.SqliteDbEditorActivity"
+            android:exported="true"
+            android:label="@string/sqlite_db_editor"
+            android:taskAffinity="" />
 
         <service
             android:name=".apk.installer.PackageInstallerService"

app/src/main/java/io/github/muntashirakon/AppManager/sqlite/ColumnHeader.java

@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+package io.github.muntashirakon.AppManager.sqlite;
+
+public class ColumnHeader extends TableRecordItem {
+
+    public ColumnHeader(String id) {
+        super(id, null);
+    }
+
+    public ColumnHeader(String id, String data) {
+        super(id, data);
+    }
+}

app/src/main/java/io/github/muntashirakon/AppManager/sqlite/QueryResultData.java

@@ -0,0 +1,60 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+package io.github.muntashirakon.AppManager.sqlite;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
+import java.util.List;
+
+public class QueryResultData {
+    public final List<List<TableRecordItem>> resultRows;
+    public final List<TableColumn> resultColumns;
+    public final long totalRows;
+    public final int limit;
+    public final long startOffset;
+    @Nullable
+    public final String query;
+    @Nullable
+    public final String tableName;
+
+    public QueryResultData(@NonNull List<List<TableRecordItem>> resultRows,
+                           @NonNull List<TableColumn> resultColumns,
+                           long totalRows, int limit, long startOffset,
+                           @Nullable String query, @Nullable String tableName) {
+        this.resultRows = resultRows;
+        this.resultColumns = resultColumns;
+        this.totalRows = totalRows;
+        this.limit = limit;
+        this.startOffset = startOffset;
+        this.query = query;
+        this.tableName = tableName;
+    }
+
+    @Nullable
+    public Long nextOffset() {
+        long nextOffset = startOffset + limit;
+        if (nextOffset < totalRows) {
+            return nextOffset;
+        }
+        // No next offset
+        return null;
+    }
+
+    @Nullable
+    public Long previousOffset() {
+        long previousOffset = startOffset - limit;
+        if (previousOffset < totalRows) {
+            if (previousOffset >= 0) {
+                return previousOffset;
+            }
+            // Candidate offset is less than 0.
+            // If start offset was not 0, start with 0
+            if (startOffset != 0) {
+                return 0L;
+            }
+        }
+        // Invalid offset
+        return null;
+    }
+}

app/src/main/java/io/github/muntashirakon/AppManager/sqlite/RecordItemHeader.java

@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+package io.github.muntashirakon.AppManager.sqlite;
+
+public class RecordItemHeader extends TableRecordItem {
+
+    public RecordItemHeader(String id) {
+        super(id, null);
+    }
+
+    public RecordItemHeader(String id, String data) {
+        super(id, data);
+    }
+}