ADD file via upload

2 months ago · 9aca502922
parent 29ef8578ce
commit 9aca502922
1 changed files with 118 additions and 0 deletions
--- a/testing/RecyclerItemTouchHelper.java
+++ b/testing/RecyclerItemTouchHelper.java
@ -0,0 +1,118 @@
+package com.example.doitnow;
+
+import android.app.AlertDialog;
+import android.content.DialogInterface;
+import android.graphics.Canvas;
+import android.graphics.Color;
+import android.graphics.Typeface;
+import android.graphics.drawable.ColorDrawable;
+import android.graphics.drawable.Drawable;
+import android.view.Gravity;
+import android.view.View;
+import android.widget.TextView;
+
+import androidx.core.content.ContextCompat;
+import androidx.recyclerview.widget.ItemTouchHelper;
+import androidx.recyclerview.widget.RecyclerView;
+
+import com.example.doitnow.Adapter.ToDoAdapter;
+
+public class RecyclerItemTouchHelper extends ItemTouchHelper.SimpleCallback {
+    private ToDoAdapter adapter;
+
+    public RecyclerItemTouchHelper(ToDoAdapter adapter) {
+        super(0, ItemTouchHelper.LEFT | ItemTouchHelper.RIGHT);
+        this.adapter = adapter;
+    }
+
+    @Override
+    public boolean onMove(RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder, RecyclerView.ViewHolder target) {
+        return false;
+    }
+
+    @Override
+    public void onSwiped(final RecyclerView.ViewHolder viewHolder, int direction) {
+        final int position = viewHolder.getAdapterPosition();
+        if (direction == ItemTouchHelper.LEFT) {
+            AlertDialog.Builder builder = new AlertDialog.Builder(adapter.getContext());
+            builder.setTitle("Delete Task");
+            builder.setMessage("Are you sure you want to delete this Task?");
+            builder.setPositiveButton("Confirm", new DialogInterface.OnClickListener() {
+                @Override
+                public void onClick(DialogInterface dialogInterface, int i) {
+                    adapter.deleteItem(position);
+                }
+            });
+            builder.setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener() {
+                @Override
+                public void onClick(DialogInterface dialog, int i) {
+                    adapter.notifyItemChanged(viewHolder.getAdapterPosition());
+                }
+            });
+            AlertDialog dialog = builder.create();
+            dialog.show();
+
+            TextView messageText = dialog.findViewById(android.R.id.message);
+            if (messageText != null) {
+                messageText.setTextColor(Color.parseColor("#8E7DBE")); // 紫色
+                messageText.setTextSize(16); // 如果你想微調大小
+                messageText.setGravity(Gravity.CENTER);
+                messageText.setTypeface(null, Typeface.BOLD);
+            }
+            TextView titleText = dialog.findViewById(
+                    dialog.getContext().getResources().getIdentifier("alertTitle", "id", "android"));
+            if (titleText != null) {
+                titleText.setTextColor(Color.parseColor("#8E7DBE"));
+                titleText.setTextSize(18);
+                titleText.setTypeface(null, Typeface.BOLD);
+            }
+            dialog.getButton(AlertDialog.BUTTON_POSITIVE).setTextColor(Color.parseColor("#8E7DBE"));
+            dialog.getButton(AlertDialog.BUTTON_NEGATIVE).setTextColor(Color.parseColor("#A0A0A0"));
+        } else {
+            adapter.editItem(position);
+        }
+    }
+
+    @Override
+    public void onChildDraw(Canvas c, RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder, float dX, float dY, int actionState, boolean isCurretlyActive) {
+        super.onChildDraw(c, recyclerView, viewHolder, dX, dY, actionState, isCurretlyActive);
+
+        Drawable icon;
+        ColorDrawable background;
+
+        View itemView = viewHolder.itemView;
+        int backgroundCornerOffset = 20;
+
+        if (dX > 0) {
+            icon = ContextCompat.getDrawable(adapter.getContext(), R.drawable.baseline_edit);
+            background = new ColorDrawable(ContextCompat.getColor(adapter.getContext(), R.color.colorPrimaryDark));
+        } else {
+            icon = ContextCompat.getDrawable(adapter.getContext(), R.drawable.baseline_delete);
+            background = new ColorDrawable(Color.RED);
+        }
+
+        int iconMargin = (itemView.getHeight() - icon.getIntrinsicHeight()) / 2;
+        int iconTop = itemView.getTop() + (itemView.getHeight() - icon.getIntrinsicHeight()) / 2;
+        int iconButtom = iconTop + icon.getIntrinsicHeight();
+
+        if (dX > 0) { //swiping to the right
+            int iconLeft = itemView.getLeft() + iconMargin;
+            int iconRight = itemView.getLeft() + iconMargin + icon.getIntrinsicWidth();
+            icon.setBounds(iconLeft, iconTop, iconRight, iconButtom);
+
+            background.setBounds(itemView.getLeft(), itemView.getTop(),
+                    itemView.getLeft() + ((int) dX) + backgroundCornerOffset, itemView.getBottom());
+        } else if (dX < 0) { //swiping to the left
+            int iconLeft = itemView.getRight() - iconMargin - icon.getIntrinsicWidth();
+            int iconRight = itemView.getRight() - iconMargin;
+            icon.setBounds(iconLeft, iconTop, iconRight, iconButtom);
+
+            background.setBounds(itemView.getRight() + ((int) dX) - backgroundCornerOffset, itemView.getTop(),
+                    itemView.getRight(), itemView.getBottom());
+        } else {
+            background.setBounds(0, 0, 0, 0);
+        }
+        background.draw(c);
+        icon.draw(c);
+    }
+}