ImageCardView.java revision 961a8f12d1fbeeb86ea066f9f2c693abb2ce50f2 
1/*
2 * Copyright (C) 2014 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
5 * in compliance with the License. You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software distributed under the License
10 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
11 * or implied. See the License for the specific language governing permissions and limitations under
12 * the License.
13 */
14package android.support.v17.leanback.widget;
15
16import android.content.Context;
17import android.graphics.drawable.Drawable;
18import android.support.v17.leanback.R;
19import android.text.TextUtils;
20import android.util.AttributeSet;
21import android.view.LayoutInflater;
22import android.view.View;
23import android.view.ViewGroup;
24import android.widget.ImageView;
25import android.widget.TextView;
26
27/**
28 * A card view with an {@link ImageView} as its main region.
29 */
30public class ImageCardView extends BaseCardView {
31
32    private ImageView mImageView;
33    private View mInfoArea;
34    private TextView mTitleView;
35    private TextView mContentView;
36    private ImageView mBadgeImage;
37    private ImageView mBadgeFadeMask;
38
39    public ImageCardView(Context context) {
40        this(context, null);
41    }
42
43    public ImageCardView(Context context, AttributeSet attrs) {
44        this(context, attrs, R.attr.imageCardViewStyle);
45    }
46
47    public ImageCardView(Context context, AttributeSet attrs, int defStyle) {
48        super(context, attrs, defStyle);
49
50        LayoutInflater inflater = LayoutInflater.from(context);
51        View v = inflater.inflate(R.layout.lb_image_card_view, this);
52
53        mImageView = (ImageView) v.findViewById(R.id.main_image);
54        mImageView.setVisibility(View.INVISIBLE);
55        mInfoArea = v.findViewById(R.id.info_field);
56        mTitleView = (TextView) v.findViewById(R.id.title_text);
57        mContentView = (TextView) v.findViewById(R.id.content_text);
58        mBadgeImage = (ImageView) v.findViewById(R.id.extra_badge);
59        mBadgeFadeMask = (ImageView) v.findViewById(R.id.fade_mask);
60    }
61
62    public void setMainImage(Drawable drawable) {
63        if (mImageView == null) {
64            return;
65        }
66
67        mImageView.setImageDrawable(drawable);
68        if (drawable == null) {
69            mImageView.setVisibility(View.INVISIBLE);
70        } else {
71            mImageView.setVisibility(View.VISIBLE);
72            fadeIn(mImageView);
73        }
74    }
75
76    public void setMainImageDimensions(int width, int height) {
77        ViewGroup.LayoutParams lp = mImageView.getLayoutParams();
78        lp.width = width;
79        lp.height = height;
80        mImageView.setLayoutParams(lp);
81    }
82
83    public Drawable getMainImage() {
84        if (mImageView == null) {
85            return null;
86        }
87
88        return mImageView.getDrawable();
89    }
90
91    public void setTitleText(CharSequence text) {
92        if (mTitleView == null) {
93            return;
94        }
95
96        mTitleView.setText(text);
97        setTextMaxLines();
98    }
99
100    public CharSequence getTitleText() {
101        if (mTitleView == null) {
102            return null;
103        }
104
105        return mTitleView.getText();
106    }
107
108    public void setContentText(CharSequence text) {
109        if (mContentView == null) {
110            return;
111        }
112
113        mContentView.setText(text);
114        setTextMaxLines();
115    }
116
117    public CharSequence getContentText() {
118        if (mContentView == null) {
119            return null;
120        }
121
122        return mContentView.getText();
123    }
124
125    public void setBadgeImage(Drawable drawable) {
126        if (mBadgeImage == null) {
127            return;
128        }
129
130        if (drawable != null) {
131            mBadgeImage.setImageDrawable(drawable);
132            mBadgeImage.setVisibility(View.VISIBLE);
133            mBadgeFadeMask.setVisibility(View.VISIBLE);
134        } else {
135            mBadgeImage.setVisibility(View.GONE);
136            mBadgeFadeMask.setVisibility(View.GONE);
137        }
138    }
139
140    public Drawable getBadgeImage() {
141        if (mBadgeImage == null) {
142            return null;
143        }
144
145        return mBadgeImage.getDrawable();
146    }
147
148    private void fadeIn(View v) {
149        v.setAlpha(0f);
150        v.animate().alpha(1f).setDuration(v.getContext().getResources().getInteger(
151                android.R.integer.config_shortAnimTime)).start();
152    }
153
154    private void setTextMaxLines() {
155        if (TextUtils.isEmpty(getTitleText())) {
156            mContentView.setMaxLines(2);
157        } else {
158            mContentView.setMaxLines(1);
159        }
160        if (TextUtils.isEmpty(getContentText())) {
161            mTitleView.setMaxLines(2);
162        } else {
163            mTitleView.setMaxLines(1);
164        }
165    }
166}
167