Add readonly FilterActivity

app/src/main/java/com/hippo/ehviewer/ui/FilterActivity.java

@@ -0,0 +1,159 @@
+/*
+ * Copyright 2019 Hippo Seven
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.hippo.ehviewer.ui;
+
+import android.content.ClipData;
+import android.content.ClipboardManager;
+import android.content.Context;
+import android.graphics.drawable.Drawable;
+import android.os.Bundle;
+import android.view.MenuItem;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ImageView;
+import android.widget.TextView;
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+import com.google.android.material.snackbar.Snackbar;
+import com.hippo.easyrecyclerview.EasyRecyclerView;
+import com.hippo.ehviewer.EhDB;
+import com.hippo.ehviewer.R;
+import com.hippo.ehviewer.dao.Filter;
+import com.hippo.util.DrawableManager;
+import com.hippo.view.ViewTransition;
+import com.hippo.yorozuya.ViewUtils;
+import java.util.List;
+
+public class FilterActivity extends ToolbarActivity {
+
+    @Nullable
+    private EasyRecyclerView mRecyclerView;
+    @Nullable
+    private ViewTransition mViewTransition;
+    @Nullable
+    private FilterAdapter mAdapter;
+    @Nullable
+    private List<Filter> mFilterList;
+
+    @Override
+    protected void onCreate(@Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_filter);
+        setNavigationIcon(R.drawable.v_arrow_left_dark_x24);
+
+        mFilterList = EhDB.getAllFilter();
+
+        mRecyclerView = (EasyRecyclerView) ViewUtils.$$(this, R.id.recycler_view);
+        TextView tip = (TextView) ViewUtils.$$(this, R.id.tip);
+        mViewTransition = new ViewTransition(mRecyclerView, tip);
+
+        Drawable drawable = DrawableManager.getVectorDrawable(this, R.drawable.big_filter);
+        drawable.setBounds(0, 0, drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight());
+        tip.setCompoundDrawables(null, drawable, null, null);
+
+        mAdapter = new FilterAdapter();
+        mRecyclerView.setAdapter(mAdapter);
+        mRecyclerView.setClipToPadding(false);
+        mRecyclerView.setClipChildren(false);
+        mRecyclerView.setLayoutManager(new LinearLayoutManager(this));
+        mRecyclerView.hasFixedSize();
+        mRecyclerView.setItemAnimator(null);
+
+        updateView(false);
+    }
+
+    private void updateView(boolean animation) {
+        if (null == mViewTransition) {
+            return;
+        }
+
+        if (null == mFilterList || 0 == mFilterList.size()) {
+            mViewTransition.showView(1, animation);
+        } else {
+            mViewTransition.showView(0, animation);
+        }
+    }
+
+    @Override
+    protected void onDestroy() {
+        super.onDestroy();
+
+        mRecyclerView = null;
+        mViewTransition = null;
+        mAdapter = null;
+        mFilterList = null;
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        switch (item.getItemId()) {
+            case android.R.id.home:
+                finish();
+                return true;
+            default:
+                return super.onOptionsItemSelected(item);
+        }
+    }
+
+    private class FilterHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
+
+        private final TextView text;
+        private final ImageView icon;
+
+        public FilterHolder(View itemView) {
+            super(itemView);
+            text = itemView.findViewById(R.id.text);
+            icon = itemView.findViewById(R.id.icon);
+            icon.setOnClickListener(this);
+        }
+
+        @Override
+        public void onClick(View v) {
+            ClipboardManager clipboard = (ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE);
+            if (clipboard != null) {
+                clipboard.setPrimaryClip(ClipData.newPlainText("filter", text.getText().toString()));
+                Snackbar.make(v, R.string.copied_to_clipboard, 3000).show();
+            }
+        }
+    }
+
+    private class FilterAdapter extends RecyclerView.Adapter<FilterHolder> {
+
+        @NonNull
+        @Override
+        public FilterHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
+            return new FilterHolder(getLayoutInflater().inflate(R.layout.item_filter, parent, false));
+        }
+
+        @Override
+        public void onBindViewHolder(@NonNull FilterHolder holder, int position) {
+            if (null == mFilterList) {
+                return;
+            }
+
+            Filter filter = mFilterList.get(position);
+            holder.text.setText(filter.text);
+        }
+
+        @Override
+        public int getItemCount() {
+            return null != mFilterList ? mFilterList.size() : 0;
+        }
+    }
+}