android listview多视图嵌套多视图
16lz
2021-01-22
笔记，listview视图总结
1 public class HomeEduMoreAdapter extends BaseAdapter {View Code
2
3 private final String TAG = "HomeEduMoreAdapter";
4
5 private static final int TYPE_COMMON = 0;
6 private static final int TYPE_BL = 1;
7 private static final int TYPE_NONE = 2;
8 private static final int TYPE_THREE = 3;
9 private static final int TYPE_QUESTION = 4;
10 private int TYPE_COUNT = 5;
11
12 private LayoutInflater inflater;
13 private List<HomeEdus> list;
14 private Context context;
15 private DisplayImageOptions options;
16 private ImageLoadingListener animateFirstListener = new AnimateFirstDisplayListener();
17
18 public HomeEduMoreAdapter(Context context, List<HomeEdus> objects) {
19 this.context = context;
20 // groupUserDao = new GroupUserDao(context);
21 inflater = LayoutInflater.from(context);
22 list = objects;
23 options = new DisplayImageOptions.Builder().cacheInMemory(true)
24 .imageScaleType(ImageScaleType.IN_SAMPLE_INT)
25 .bitmapConfig(Bitmap.Config.RGB_565).cacheOnDisk(true)
26 .showImageOnLoading(R.drawable.icon_default)// 设置图片在下载期间显示的图片
27 .showImageForEmptyUri(R.drawable.icon_default)// 设置图片Uri为空或是错误的时候显示的图片
28 .showImageOnFail(R.drawable.icon_default)// 设置图片加载/解码过程中错误时候显示的图片
29 .considerExifParams(true).build();
30 }
31
32 @Override
33 public int getCount() {
34 // TODO Auto-generated method stub
35 return list.size();
36 }
37
38 @Override
39 public int getViewTypeCount() {
40 // TODO Auto-generated method stub
41 return TYPE_COUNT;
42 }
43
44 @Override
45 public HomeEdus getItem(int position) {
46 // TODO Auto-generated method stub
47 return list.get(position);
48 }
49
50 @Override
51 public long getItemId(int postion) {
52 // TODO Auto-generated method stub
53 return postion;
54 }
55
56 @Override
57 public int getItemViewType(int position) {
58 // TODO Auto-generated method stub
59 HomeEdus edus = getItem(position);
60
61 String type = edus.getType();// 菜单类型
62 int result = TYPE_COMMON;
63 switch (type) {
64 case "hx":
65 result = TYPE_COMMON;
66 break;
67 case "wd":
68 if (edus.getPic1() == null || edus.getPic1().equals("")) {
69 result = TYPE_QUESTION;
70 }else {
71 result = TYPE_COMMON;
72 }
73
74 break;
75 case "jt":
76 result = TYPE_COMMON;
77 break;
78 case "bl":
79 result = TYPE_BL;
80 break;
81 default:
82 String jx = edus.getType();// 精选内容类型
83 switch (jx) {
84 default:
85 Integer imgNum = Integer.parseInt(edus.getImgNum());
86 if (imgNum != null && imgNum > 0 && imgNum < 3) {
87 result = TYPE_COMMON;
88 } else if (imgNum != null && imgNum >= 3) {
89 result = TYPE_THREE;
90 } else {
91 result = TYPE_NONE;
92 }
93
94 break;
95 }
96
97 break;
98 }
99 return result;
100 }
101
102 @Override
103 public View getView(int position, View convertView, ViewGroup parent) {
104 // TODO Auto-generated method stub
105 final HomeEdus model = getItem(position);
106 int type = getItemViewType(position);
107 final ViewHolder holder;
108
109 if (convertView == null) {
110 holder = new ViewHolder();
111 WindowManager manager = (WindowManager) context
112 .getSystemService(Context.WINDOW_SERVICE);
113 int width = manager.getDefaultDisplay().getWidth();
114 int height = manager.getDefaultDisplay().getWidth() / 2;
115 switch (type) {
116 case TYPE_COMMON:
117 convertView = inflater.inflate(R.layout.item_home_edus, null);
118 holder.tv_content = (QSTextView) convertView
119 .findViewById(R.id.tv_content);
120 holder.tv_content.setTextColor(Color.GRAY);
121 holder.tv_title = (QSTextView) convertView
122 .findViewById(R.id.tv_title);
123 holder.tv_name = (TextView) convertView
124 .findViewById(R.id.tv_name);
125 // holder.img_head = (CircleImageView) convertView
126 // .findViewById(R.id.img_head);
127 holder.img_content = (ImageView) convertView
128 .findViewById(R.id.img_content);
129 holder.tv_read = (TextView) convertView
130 .findViewById(R.id.tv_read);
131 holder.tv_comment = (TextView) convertView
132 .findViewById(R.id.tv_comment);
133 holder.tv_thumbupNum = (TextView) convertView
134 .findViewById(R.id.tv_thumbupNum);
135 break;
136 case TYPE_QUESTION:
137 convertView = inflater.inflate(R.layout.item_home_question, null);
138 holder.tv_content = (QSTextView) convertView
139 .findViewById(R.id.tv_content);
140 holder.tv_content.setTextColor(Color.GRAY);
141 holder.tv_title = (QSTextView) convertView
142 .findViewById(R.id.tv_title);
143 holder.tv_name = (TextView) convertView
144 .findViewById(R.id.tv_name);
145 holder.tv_read = (TextView) convertView
146 .findViewById(R.id.tv_read);
147 holder.tv_comment = (TextView) convertView
148 .findViewById(R.id.tv_comment);
149 holder.tv_thumbupNum = (TextView) convertView
150 .findViewById(R.id.tv_thumbupNum);
151 break;
152 case TYPE_BL:
153 case TYPE_NONE:
154 convertView = inflater.inflate(R.layout.item_home_case, null);
155 holder.tv_content = (QSTextView) convertView
156 .findViewById(R.id.tv_content);
157 holder.tv_content.setTextColor(Color.GRAY);
158 holder.tv_title = (QSTextView) convertView
159 .findViewById(R.id.tv_title);
160 holder.tv_name = (TextView) convertView
161 .findViewById(R.id.tv_name);
162 holder.img_content = (ImageView) convertView
163 .findViewById(R.id.img_content);
164
165 LayoutParams para1 = holder.img_content.getLayoutParams();
166 para1.height = height;
167 para1.width = width;
168 holder.img_content.setLayoutParams(para1);
169
170 holder.tv_read = (TextView) convertView
171 .findViewById(R.id.tv_read);
172 holder.tv_comment = (TextView) convertView
173 .findViewById(R.id.tv_comment);
174 holder.tv_thumbupNum = (TextView) convertView
175 .findViewById(R.id.tv_thumbupNum);
176 break;
177
178 case TYPE_THREE:
179 convertView = inflater.inflate(R.layout.item_home_three, null);
180 holder.tv_content = (QSTextView) convertView
181 .findViewById(R.id.tv_content);
182 holder.tv_content.setTextColor(Color.GRAY);
183 holder.tv_title = (QSTextView) convertView
184 .findViewById(R.id.tv_title);
185 holder.tv_name = (TextView) convertView
186 .findViewById(R.id.tv_name);
187 holder.img_content1 = (ImageView) convertView
188 .findViewById(R.id.img_content1);
189 holder.img_content2 = (ImageView) convertView
190 .findViewById(R.id.img_content2);
191 holder.img_content3 = (ImageView) convertView
192 .findViewById(R.id.img_content3);
193 int w = width / 3;
194 LayoutParams p = holder.img_content1.getLayoutParams();
195 p.height = (int)(w*0.7f);
196 p.width = w;
197 holder.img_content1.setLayoutParams(p);
198
199 p = holder.img_content2.getLayoutParams();
200 p.height = (int)(w*0.7f);
201 p.width = w;
202 holder.img_content2.setLayoutParams(p);
203
204 p = holder.img_content3.getLayoutParams();
205 p.height = (int)(w*0.7f);
206 p.width = w;
207 holder.img_content3.setLayoutParams(p);
208
209 holder.tv_read = (TextView) convertView
210 .findViewById(R.id.tv_read);
211 holder.tv_comment = (TextView) convertView
212 .findViewById(R.id.tv_comment);
213 holder.tv_thumbupNum = (TextView) convertView
214 .findViewById(R.id.tv_thumbupNum);
215 break;
216
217 }
218
219 convertView.setTag(holder);
220 } else {
221 holder = (ViewHolder) convertView.getTag();
222 }
223
224 switch (type) {
225 case TYPE_COMMON:
226 case TYPE_BL:
227 setCommon(holder, model);
228 break;
229 case TYPE_QUESTION:
230 setQuestion(holder,model);
231 break;
232 case TYPE_NONE:
233 setCase(holder, model);
234 break;
235 case TYPE_THREE:
236 setThree(holder, model);
237 break;
238 }
239
240 return convertView;
241 }
242
243 private void setCommon(ViewHolder holder, HomeEdus entity) {
244 String content = entity.getDesc();
245 int clength = content.length();
246 if (clength > 65) {
247 content = content.substring(0, 65) + "...";
248 }
249 holder.tv_content.setMText(content);
250
251 String title = entity.getTitle();
252 int tlength = title.length();
253 if (tlength > 45) {
254 title = title.substring(0, 45) + "...";
255 }
256 holder.tv_title.setMText(title);
257 // int height = holder.tv_title.getHeight();
258 holder.tv_thumbupNum.setText(entity.getThumbupNum());
259 holder.tv_read.setText(entity.getReadNum());
260 holder.tv_comment.setText(entity.getCommentNum());
261
262 holder.tv_name.setText(entity.getSourceName());
263 // if (entity.getHead_img() != null && !entity.getHead_img().equals(""))
264 // {
265 // ImageLoader.getInstance().displayImage(entity.getHead_img().trim(),
266 // holder.img_head, options, animateFirstListener);
267 // } else {
268 // holder.img_head.setImageResource(R.drawable.pic_head_none_login);
269 // }
270 if (entity.getPic1() != null
271 && !entity.getPic1().equals("")) {
272 holder.img_content.setBackground(null);
273 ImageLoader.getInstance().displayImage(
274 entity.getPic1().trim(), holder.img_content,
275 options, animateFirstListener);
276 }
277 }
278
279 private void setCase(ViewHolder holder, HomeEdus entity) {
280 String content = entity.getDesc();
281 int clength = content.length();
282 if (clength > 65) {
283 content = content.substring(0, 65) + "...";
284 }
285 holder.tv_content.setMText(content);
286
287 String title = entity.getTitle();
288 int tlength = title.length();
289 if (tlength > 45) {
290 title = title.substring(0, 45) + "...";
291 }
292 holder.tv_title.setMText(title);
293 // int height = holder.tv_title.getHeight();
294 holder.tv_thumbupNum.setText(entity.getThumbupNum());
295 holder.tv_read.setText(entity.getReadNum());
296 holder.tv_comment.setText(entity.getCommentNum());
297
298 holder.tv_name.setText(entity.getSourceName());
299 if (entity.getPic1() != null
300 && !entity.getPic1().equals("")) {
301 holder.img_content.setBackground(null);
302 ImageLoader.getInstance().displayImage(
303 entity.getPic1().trim(), holder.img_content,
304 options, animateFirstListener);
305 }
306 }
307
308 private void setThree(ViewHolder holder, HomeEdus entity) {
309 String content = entity.getDesc();
310 int clength = content.length();
311 if (clength > 65) {
312 content = content.substring(0, 65) + "...";
313 }
314 holder.tv_content.setMText(content);
315
316 String title = entity.getTitle();
317 int tlength = title.length();
318 if (tlength > 45) {
319 title = title.substring(0, 45) + "...";
320 }
321 holder.tv_title.setMText(title);
322 // int height = holder.tv_title.getHeight();
323 holder.tv_thumbupNum.setText(entity.getThumbupNum());
324 holder.tv_read.setText(entity.getReadNum());
325 holder.tv_comment.setText(entity.getCommentNum());
326
327 holder.tv_name.setText(entity.getSourceName());
328
329 holder.img_content1.setImageResource(R.drawable.icon_default);
330 holder.img_content2.setImageResource(R.drawable.icon_default);
331 holder.img_content3.setImageResource(R.drawable.icon_default);
332 if (entity.getPic1() != null
333 && !entity.getPic1().equals("")) {
334 holder.img_content1.setBackground(null);
335 ImageLoader.getInstance().displayImage(
336 entity.getPic1().trim(), holder.img_content1,
337 options, animateFirstListener);
338 }
339 if (entity.getPic2() != null
340 && !entity.getPic2().equals("")) {
341 holder.img_content1.setBackground(null);
342 ImageLoader.getInstance().displayImage(
343 entity.getPic1().trim(), holder.img_content2,
344 options, animateFirstListener);
345 }
346 if (entity.getPic3() != null
347 && !entity.getPic3().equals("")) {
348 holder.img_content1.setBackground(null);
349 ImageLoader.getInstance().displayImage(
350 entity.getPic1().trim(), holder.img_content3,
351 options, animateFirstListener);
352 }
353 }
354
355 private void setQuestion(ViewHolder holder, HomeEdus entity) {
356 String content = entity.getDesc();
357 int clength = content.length();
358 if (clength > 65) {
359 content = content.substring(0, 65) + "...";
360 }
361 holder.tv_content.setMText(content);
362
363 String title = entity.getTitle();
364 int tlength = title.length();
365 if (tlength > 45) {
366 title = title.substring(0, 45) + "...";
367 }
368 holder.tv_title.setMText(title);
369 // int height = holder.tv_title.getHeight();
370 holder.tv_thumbupNum.setText(entity.getThumbupNum());
371 holder.tv_read.setText(entity.getReadNum());
372 holder.tv_comment.setText(entity.getCommentNum());
373
374 holder.tv_name.setText(entity.getSourceName());
375
376 }
377
378 public void setList(List<HomeEdus> list) {
379 this.list.clear();
380 this.list.addAll(list);
381 notifyDataSetChanged();
382 }
383
384 static class ViewHolder {
385 public QSTextView tv_title;
386 public QSTextView tv_content;
387 public ImageView img_content;
388 public TextView tv_name;
389
390 public TextView tv_read;
391 public TextView tv_comment;
392 public TextView tv_thumbupNum;
393
394 public ImageView img_content1;
395 public ImageView img_content2;
396 public ImageView img_content3;
397 }
398
399 private static class AnimateFirstDisplayListener extends
400 SimpleImageLoadingListener {
401
402 static final List<String> displayedImages = Collections
403 .synchronizedList(new LinkedList<String>());
404
405 @Override
406 public void onLoadingComplete(String imageUri, View view,
407 Bitmap loadedImage) {
408 if (loadedImage != null) {
409 ImageView imageView = (ImageView) view;
410 boolean firstDisplay = !displayedImages.contains(imageUri);
411 if (firstDisplay) {
412 FadeInBitmapDisplayer.animate(imageView, 500);
413 displayedImages.add(imageUri);
414 }
415 }
416 }
417 }
418
419 }
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