/*
* Copyright (C) 2014 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.support.v17.leanback.widget;
import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.drawable.Drawable;
import android.support.annotation.ColorInt;
import android.support.v17.leanback.R;
import android.text.TextUtils;
import android.util.AttributeSet;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.ImageView.ScaleType;
import android.widget.TextView;
/**
* A subclass of {@link BaseCardView} with an {@link ImageView} as its main region.
*/
public class ImageCardView extends BaseCardView {
private ImageView mImageView;
private View mInfoArea;
private TextView mTitleView;
private TextView mContentView;
private ImageView mBadgeImage;
private boolean mAttachedToWindow;
public ImageCardView(Context context) {
this(context, null);
}
public ImageCardView(Context context, AttributeSet attrs) {
this(context, attrs, R.attr.imageCardViewStyle);
}
public ImageCardView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
LayoutInflater inflater = LayoutInflater.from(context);
View v = inflater.inflate(R.layout.lb_image_card_view, this);
mImageView = (ImageView) v.findViewById(R.id.main_image);
mImageView.setVisibility(View.INVISIBLE);
mInfoArea = v.findViewById(R.id.info_field);
mTitleView = (TextView) v.findViewById(R.id.title_text);
mContentView = (TextView) v.findViewById(R.id.content_text);
mBadgeImage = (ImageView) v.findViewById(R.id.extra_badge);
if (mInfoArea != null) {
TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.lbImageCardView,
defStyle, 0);
try {
setInfoAreaBackground(
a.getDrawable(R.styleable.lbImageCardView_infoAreaBackground));
} finally {
a.recycle();
}
}
}
/**
* Returns the main image view.
*/
public final ImageView getMainImageView() {
return mImageView;
}
/**
* Enables or disables adjustment of view bounds on the main image.
*/
public void setMainImageAdjustViewBounds(boolean adjustViewBounds) {
if (mImageView != null) {
mImageView.setAdjustViewBounds(adjustViewBounds);
}
}
/**
* Sets the ScaleType of the main image.
*/
public void setMainImageScaleType(ScaleType scaleType) {
if (mImageView != null) {
mImageView.setScaleType(scaleType);
}
}
/**
* Sets the image drawable with fade-in animation.
*/
public void setMainImage(Drawable drawable) {
setMainImage(drawable, true);
}
/**
* Sets the image drawable with optional fade-in animation.
*/
public void setMainImage(Drawable drawable, boolean fade) {
if (mImageView == null) {
return;
}
mImageView.setImageDrawable(drawable);
if (drawable == null) {
mImageView.animate().cancel();
mImageView.setAlpha(1f);
mImageView.setVisibility(View.INVISIBLE);
} else {
mImageView.setVisibility(View.VISIBLE);
if (fade) {
fadeIn();
} else {
mImageView.animate().cancel();
mImageView.setAlpha(1f);
}
}
}
/**
* Sets the layout dimensions of the ImageView.
*/
public void setMainImageDimensions(int width, int height) {
ViewGroup.LayoutParams lp = mImageView.getLayoutParams();
lp.width = width;
lp.height = height;
mImageView.setLayoutParams(lp);
}
/**
* Returns the ImageView drawable.
*/
public Drawable getMainImage() {
if (mImageView == null) {
return null;
}
return mImageView.getDrawable();
}
/**
* Returns the info area background drawable.
*/
public Drawable getInfoAreaBackground() {
if (mInfoArea != null) {
return mInfoArea.getBackground();
}
return null;
}
/**
* Sets the info area background drawable.
*/
public void setInfoAreaBackground(Drawable drawable) {
if (mInfoArea != null) {
mInfoArea.setBackground(drawable);
}
}
/**
* Sets the info area background color.
*/
public void setInfoAreaBackgroundColor(@ColorInt int color) {
if (mInfoArea != null) {
mInfoArea.setBackgroundColor(color);
}
}
/**
* Sets the title text.
*/
public void setTitleText(CharSequence text) {
if (mTitleView == null) {
return;
}
mTitleView.setText(text);
}
/**
* Returns the title text.
*/
public CharSequence getTitleText() {
if (mTitleView == null) {
return null;
}
return mTitleView.getText();
}
/**
* Sets the content text.
*/
public void setContentText(CharSequence text) {
if (mContentView == null) {
return;
}
mContentView.setText(text);
}
/**
* Returns the content text.
*/
public CharSequence getContentText() {
if (mContentView == null) {
return null;
}
return mContentView.getText();
}
/**
* Sets the badge image drawable.
*/
public void setBadgeImage(Drawable drawable) {
if (mBadgeImage == null) {
return;
}
mBadgeImage.setImageDrawable(drawable);
if (drawable != null && mContentView!= null && mContentView.getVisibility() != GONE) {
mBadgeImage.setVisibility(View.VISIBLE);
} else {
mBadgeImage.setVisibility(View.GONE);
}
}
/**
* Returns the badge image drawable.
*/
public Drawable getBadgeImage() {
if (mBadgeImage == null) {
return null;
}
return mBadgeImage.getDrawable();
}
private void fadeIn() {
mImageView.setAlpha(0f);
if (mAttachedToWindow) {
mImageView.animate().alpha(1f).setDuration(mImageView.getResources().getInteger(
android.R.integer.config_shortAnimTime));
}
}
@Override
public boolean hasOverlappingRendering() {
return false;
}
@Override
protected void onAttachedToWindow() {
super.onAttachedToWindow();
mAttachedToWindow = true;
if (mImageView.getAlpha() == 0) {
fadeIn();
}
}
@Override
protected void onDetachedFromWindow() {
mAttachedToWindow = false;
mImageView.animate().cancel();
mImageView.setAlpha(1f);
super.onDetachedFromWindow();
}
}