Android仿新浪微博发布微博界面设计(5)

public class WriteActivity extends Activity implements AdapterView.OnItemClickListener { private Button onput, addexpression; private EditText write; private GridView gridView; private TextView total_text_num = null; private LinearLayout ll_emotion_dashboard; private ViewPager vp_emotion_dashboard; // 发送图片的路径 private String image_path; private Bitmap bmp; private ArrayList<String> imagepaths; private ArrayList<HashMap<String, Object>> imageItem; private SimpleAdapter simpleAdapter; //适配器 private Tools tools; private EmotionPagerAdapter emotionPagerGvAdapter; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.write); imagepaths = new ArrayList<>(); write = (EditText) findViewById(R.id.write); total_text_num = (TextView) findViewById(R.id.total_text_num); onput = (Button) findViewById(R.id.onput); addexpression = (Button) findViewById(R.id.addexpression); ll_emotion_dashboard = (LinearLayout) findViewById(R.id.ll_emotion_dashboard); vp_emotion_dashboard = (ViewPager) findViewById(R.id.vp_emotion_dashboard); /**  * 注册输入框内容监听器  */ write.addTextChangedListener(new TextWatcher() {  @Override  public void beforeTextChanged(CharSequence s, int start, int count, int after) {  }  /**  * 当输入框的内容变化的时候执行  */  @Override  public void onTextChanged(CharSequence s, int start, int before, int count) {  boolean flag = false;  String mText = write.getText().toString();  int len = mText.length();  if (len > 140) {   total_text_num.setTextColor(Color.RED);  } else {   total_text_num.setTextColor(Color.GREEN);  }  total_text_num.setText(String.valueOf(140 - len));  }  @Override  public void afterTextChanged(Editable s) {  } }); gridView = (GridView) findViewById(R.id.images); bmp = BitmapFactory.decodeResource(getResources(), R.drawable.add); imageItem = new ArrayList<HashMap<String, Object>>(); HashMap<String, Object> map = new HashMap<String, Object>(); map.put("itemImage", bmp); imageItem.add(map); simpleAdapter = new SimpleAdapter(this,  imageItem, R.layout.griditem_addpic,  new String[]{"itemImage"}, new int[]{R.id.imageView}); simpleAdapter.setViewBinder(new SimpleAdapter.ViewBinder() {  @Override  public boolean setViewValue(View view, Object data,     String textRepresentation) {  if (view instanceof ImageView && data instanceof Bitmap) {   ImageView i = (ImageView) view;   i.setImageBitmap((Bitmap) data);   return true;  }  return false;  } }); gridView.setAdapter(simpleAdapter); /**  * 监听GridView点击事件  */ gridView.setOnItemClickListener(new AdapterView.OnItemClickListener() {  @Override  public void onItemClick(AdapterView<?> parent, View v, int position, long id) {  if (imageItem.size() == 10) { //第一张为默认图片   Toast.makeText(WriteActivity.this, "图片数9张已满", Toast.LENGTH_SHORT).show();  } else if (position == 0) { //点击图片位置为+ 0对应0张图片   //选择图片   Intent intent = new Intent(Intent.ACTION_PICK,    android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);   startActivityForResult(intent, 1);   //通过onResume()刷新数据  } else {   dialog(position);  }  } }); /**  * 监听发表按钮点击事件  */ tools = Tools.getInstance(); onput.setOnClickListener(new View.OnClickListener() {  @Override  public void onClick(View v) {  //对文字进行处理  String mText = write.getText().toString();  int len = mText.length();  if (len == 0) {   Toast.makeText(WriteActivity.this, "内容不能为空！", Toast.LENGTH_SHORT).show();  } else if (len > 140) {   Toast.makeText(WriteActivity.this, "超出字数限制！", Toast.LENGTH_SHORT).show();  } else {   if (imagepaths.size() > 0) {   tools.postwhitTextandImages(WriteActivity.this, mText,imagepaths);   //进入微博主界面   Intent intent = new Intent(WriteActivity.this, MainActivity.class);   startActivity(intent);   WriteActivity.this.finish();   } else {   tools.postwhitText(WriteActivity.this, mText);   //进入微博主界面   Intent intent = new Intent(WriteActivity.this, MainActivity.class);   startActivity(intent);   WriteActivity.this.finish();   }  }  } }); /**  * 表情按钮及功能  */ addexpression.setOnClickListener(new View.OnClickListener() {  @Override  public void onClick(View v) {  // 隐藏或显示表情面板  ll_emotion_dashboard.setVisibility(   ll_emotion_dashboard.getVisibility() == View.VISIBLE ?    View.GONE : View.VISIBLE);  } }); initEmotion(); } //获取图片路径 响应startActivityForResult protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); //打开图片 if (resultCode == RESULT_OK && requestCode == 1) {  Uri uri = data.getData();  if (!TextUtils.isEmpty(uri.getAuthority())) {  //查询选择图片  Cursor cursor = getContentResolver().query(   uri,   new String[]{MediaStore.Images.Media.DATA},   null,   null,   null);  //返回 没找到选择图片  if (null == cursor) {   return;  }  //光标移动至开头 获取图片路径  cursor.moveToFirst();  image_path = cursor.getString(cursor   .getColumnIndex(MediaStore.Images.Media.DATA));  } } //end if 打开图片 } //刷新图片 @Override protected void onResume() { super.onResume(); if (!TextUtils.isEmpty(image_path)) {  Bitmap addbmp = BitmapFactory.decodeFile(image_path);  HashMap<String, Object> map = new HashMap<String, Object>();  map.put("itemImage", addbmp);  imageItem.add(map);  simpleAdapter = new SimpleAdapter(this,   imageItem, R.layout.griditem_addpic,   new String[]{"itemImage"}, new int[]{R.id.imageView});  simpleAdapter.setViewBinder(new SimpleAdapter.ViewBinder() {  @Override  public boolean setViewValue(View view, Object data,      String textRepresentation) {   if (view instanceof ImageView && data instanceof Bitmap) {   ImageView i = (ImageView) view;   i.setImageBitmap((Bitmap) data);   return true;   }   return false;  }  });  gridView.setAdapter(simpleAdapter);  simpleAdapter.notifyDataSetChanged();  imagepaths.add(image_path);  //刷新后释放防止手机休眠后自动添加  image_path = null; } } /** * Dialog对话框提示用户删除操作 * position为删除图片位置 */ protected void dialog(final int position) { AlertDialog.Builder builder = new AlertDialog.Builder(WriteActivity.this); builder.setMessage("确认移除已添加图片吗？"); builder.setTitle("提示"); builder.setPositiveButton("确认", new DialogInterface.OnClickListener() {  @Override  public void onClick(DialogInterface dialog, int which) {  dialog.dismiss();  imageItem.remove(position);  imagepaths.remove(position - 1);  simpleAdapter.notifyDataSetChanged();  } }); builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {  @Override  public void onClick(DialogInterface dialog, int which) {  dialog.dismiss();  } }); builder.create().show(); } /** * 初始化表情面板内容 */ private void initEmotion() { // 获取屏幕宽度 int gvWidth = DisplayUtils.getScreenWidthPixels(this); // 表情边距 int spacing = DisplayUtils.dp2px(this, 8); // GridView中item的宽度 int itemWidth = (gvWidth - spacing * 8) / 7; int gvHeight = itemWidth * 3 + spacing * 4; List<GridView> gvs = new ArrayList<GridView>(); List<String> emotionNames = new ArrayList<String>(); // 遍历所有的表情名字 for (String emojiName : EmotionUtils.emojiMap.keySet()) {  emotionNames.add(emojiName);  // 每20个表情作为一组,同时添加到ViewPager对应的view集合中  if (emotionNames.size() == 20) {  GridView gv = createEmotionGridView(emotionNames, gvWidth, spacing, itemWidth, gvHeight);  gvs.add(gv);  // 添加完一组表情,重新创建一个表情名字集合  emotionNames = new ArrayList<String>();  } } // 检查最后是否有不足20个表情的剩余情况 if (emotionNames.size() > 0) {  GridView gv = createEmotionGridView(emotionNames, gvWidth, spacing, itemWidth, gvHeight);  gvs.add(gv); } // 将多个GridView添加显示到ViewPager中 emotionPagerGvAdapter = new EmotionPagerAdapter(gvs); vp_emotion_dashboard.setAdapter(emotionPagerGvAdapter); LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(gvWidth, gvHeight); vp_emotion_dashboard.setLayoutParams(params); } /** * 创建显示表情的GridView */ private GridView createEmotionGridView(List<String> emotionNames, int gvWidth, int padding, int itemWidth, int gvHeight) { // 创建GridView GridView gv = new GridView(this); gv.setBackgroundColor(Color.rgb(233, 233, 233)); gv.setSelector(android.R.color.transparent); gv.setNumColumns(7); gv.setPadding(padding, padding, padding, padding); gv.setHorizontalSpacing(padding); gv.setVerticalSpacing(padding); LayoutParams params = new LayoutParams(gvWidth, gvHeight); gv.setLayoutParams(params); // 给GridView设置表情图片 EmotionGvAdapter adapter = new EmotionGvAdapter(this, emotionNames, itemWidth); gv.setAdapter(adapter); gv.setOnItemClickListener(this); return gv; } @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { Object itemAdapter = parent.getAdapter(); if (itemAdapter instanceof EmotionGvAdapter) {  // 点击的是表情  EmotionGvAdapter emotionGvAdapter = (EmotionGvAdapter) itemAdapter;  if (position == emotionGvAdapter.getCount() - 1) {  // 如果点击了最后一个回退按钮,则调用删除键事件  write.dispatchKeyEvent(new KeyEvent(   KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DEL));  } else {  // 如果点击了表情,则添加到输入框中  String emotionName = emotionGvAdapter.getItem(position);  // 获取当前光标位置,在指定位置上添加表情图片文本  int curPosition = write.getSelectionStart();  StringBuilder sb = new StringBuilder(write.getText().toString());  sb.insert(curPosition, emotionName);  // 特殊文字处理,将表情等转换一下  write.setText(StringUtils.getEmotionContent(   this, write, sb.toString()));  // 将光标设置到新增完表情的右侧  write.setSelection(curPosition + emotionName.length());  } } }}

 /** * 发布一条不含图片的微博 * * @param context * @param text */ public void postwhitText(final Context context, final String text) { if (oAuth == null) {  oAuth = oAuth.getOAuth(context); } new Thread() {  @Override  public void run() {  try {   HttpPost post = new HttpPost("https://api.weibo.com/2/statuses/update" +    ".json");   List<NameValuePair> params = new ArrayList<NameValuePair>();   params.add(new BasicNameValuePair("access_token", oAuth.getAccessToken()));   params.add(new BasicNameValuePair("status", text));   post.setEntity(new UrlEncodedFormEntity(params, HTTP.UTF_8));   HttpResponse response = httpClient.execute(post);   if (response.getStatusLine().getStatusCode() == 200) {   Looper.prepare();   Toast.makeText(context, "发表成功", Toast.LENGTH_SHORT).show();   Looper.loop();   } else {   Looper.prepare();   Toast.makeText(context, "发表失败", Toast.LENGTH_SHORT).show();   Looper.loop();   }  } catch (UnsupportedEncodingException e) {   e.printStackTrace();  } catch (ClientProtocolException e) {   e.printStackTrace();  } catch (IOException e) {   e.printStackTrace();  }  } }.start(); } /** * 发布一条带图片的微博 * * @param context * @param */ public void postwhitTextandImages(final Context context, final String text, final List<String> filesPath) { new Thread() {  @Override  public void run() {  try {   //HttpClient对象   HttpClient httpClient = new DefaultHttpClient();   //采用POST的请求方式   HttpPost httpPost = new HttpPost("https://upload.api.weibo" +    ".com/2/statuses/upload.json");   //MultipartEntity对象，需要httpmime-4.1.1.jar文件。   MultipartEntity multipartEntity = new MultipartEntity();   //StringBody对象，参数   StringBody param = new StringBody(oAuth.getAccessToken());   multipartEntity.addPart("access_token", param);   StringBody param1 = new StringBody(URLEncoder.encode(text));   multipartEntity.addPart("status", param1);   //filesPath为List<String>对象，里面存放的是需要上传的文件的地址   for (String path : filesPath) {   Log.i("------------", path);   //FileBody对象，需要上传的文件   ContentBody file = new FileBody(new File(path));   multipartEntity.addPart("pic", file);   }   //将MultipartEntity对象赋值给HttpPost   httpPost.setEntity(multipartEntity);   HttpResponse response = null;   //执行请求，并返回结果HttpResponse   response = httpClient.execute(httpPost);   if (response.getStatusLine().getStatusCode() == 200) {   Looper.prepare();   Toast.makeText(context, "发表成功", Toast.LENGTH_SHORT).show();   Looper.loop();   } else {   Looper.prepare();   Toast.makeText(context, "发表失败", Toast.LENGTH_SHORT).show();   Looper.loop();   }  } catch (ClientProtocolException e) {   e.printStackTrace();  } catch (IOException e) {   e.printStackTrace();  }  } }.start(); }