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/*
* Copyright (C) 2017 The Android Open Source Project
*
* 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 android.slice.views;
import static android.view.ViewGroup.LayoutParams.MATCH_PARENT;
import static android.view.ViewGroup.LayoutParams.WRAP_CONTENT;
import android.content.Context;
import android.graphics.Color;
import android.slice.Slice;
import android.slice.SliceItem;
import android.slice.views.LargeSliceAdapter.SliceListView;
import android.util.AttributeSet;
import android.util.TypedValue;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.FrameLayout;
import android.widget.ImageView;
import android.widget.ImageView.ScaleType;
import android.widget.LinearLayout;
import android.widget.TextView;
import com.android.internal.R;
import java.util.ArrayList;
import java.util.Arrays;
/**
* @hide
*/
public class GridView extends LinearLayout implements SliceListView {
private static final String TAG = "GridView";
private static final int MAX_IMAGES = 3;
private static final int MAX_ALL = 5;
private boolean mIsAllImages;
public GridView(Context context, AttributeSet attrs) {
super(context, attrs);
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
if (mIsAllImages) {
int width = MeasureSpec.getSize(widthMeasureSpec);
int height = width / getChildCount();
heightMeasureSpec = MeasureSpec.makeMeasureSpec(MeasureSpec.EXACTLY,
height);
getLayoutParams().height = height;
for (int i = 0; i < getChildCount(); i++) {
getChildAt(i).getLayoutParams().height = height;
}
}
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
}
@Override
public void setSliceItem(SliceItem slice) {
mIsAllImages = true;
removeAllViews();
int total = 1;
if (slice.getType() == SliceItem.TYPE_SLICE) {
SliceItem[] items = slice.getSlice().getItems();
total = items.length;
for (int i = 0; i < total; i++) {
SliceItem item = items[i];
if (isFull()) {
continue;
}
if (!addItem(item)) {
mIsAllImages = false;
}
}
} else {
if (!isFull()) {
if (!addItem(slice)) {
mIsAllImages = false;
}
}
}
if (total > getChildCount() && mIsAllImages) {
addExtraCount(total - getChildCount());
}
}
private void addExtraCount(int numExtra) {
View last = getChildAt(getChildCount() - 1);
FrameLayout frame = new FrameLayout(getContext());
frame.setLayoutParams(last.getLayoutParams());
removeView(last);
frame.addView(last, new LayoutParams(MATCH_PARENT, MATCH_PARENT));
TextView v = new TextView(getContext());
v.setTextColor(Color.WHITE);
v.setBackgroundColor(0x4d000000);
v.setText(getResources().getString(R.string.slice_more_content, numExtra));
v.setTextSize(TypedValue.COMPLEX_UNIT_DIP, 18);
v.setGravity(Gravity.CENTER);
frame.addView(v, new LayoutParams(MATCH_PARENT, MATCH_PARENT));
addView(frame);
}
private boolean isFull() {
return getChildCount() >= (mIsAllImages ? MAX_IMAGES : MAX_ALL);
}
/**
* Returns true if this item is just an image.
*/
private boolean addItem(SliceItem item) {
if (item.getType() == SliceItem.TYPE_IMAGE) {
ImageView v = new ImageView(getContext());
v.setImageIcon(item.getIcon());
v.setScaleType(ScaleType.CENTER_CROP);
addView(v, new LayoutParams(0, MATCH_PARENT, 1));
return true;
} else {
LinearLayout v = new LinearLayout(getContext());
int s = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,
12, getContext().getResources().getDisplayMetrics());
v.setPadding(0, s, 0, 0);
v.setOrientation(LinearLayout.VERTICAL);
v.setGravity(Gravity.CENTER_HORIZONTAL);
// TODO: Unify sporadic inflates that happen throughout the code.
ArrayList<SliceItem> items = new ArrayList<>();
if (item.getType() == SliceItem.TYPE_SLICE) {
items.addAll(Arrays.asList(item.getSlice().getItems()));
}
items.forEach(i -> {
Context context = getContext();
switch (i.getType()) {
case SliceItem.TYPE_TEXT:
boolean title = false;
if ((item.hasAnyHints(new String[] {
Slice.HINT_LARGE, Slice.HINT_TITLE
}))) {
title = true;
}
TextView tv = (TextView) LayoutInflater.from(context).inflate(
title ? R.layout.slice_title : R.layout.slice_secondary_text, null);
tv.setText(i.getText());
v.addView(tv);
break;
case SliceItem.TYPE_IMAGE:
ImageView iv = new ImageView(context);
iv.setImageIcon(i.getIcon());
if (item.hasHint(Slice.HINT_LARGE)) {
iv.setLayoutParams(new LayoutParams(WRAP_CONTENT, WRAP_CONTENT));
} else {
int size = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,
48, context.getResources().getDisplayMetrics());
iv.setLayoutParams(new LayoutParams(size, size));
}
v.addView(iv);
break;
case SliceItem.TYPE_REMOTE_VIEW:
v.addView(i.getRemoteView().apply(context, v));
break;
case SliceItem.TYPE_COLOR:
// TODO: Support color to tint stuff here.
break;
}
});
addView(v, new LayoutParams(0, WRAP_CONTENT, 1));
return false;
}
}
}
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