适用于android 开发。是一个简单的聊天软件,包括知识点,各个控件的运用(ExpandableListView,ViewPager,Spinner,LinearLayout,RelativeLayot),自定义的ViaImageView(自定义xml属性),sql 的写入,读取等操作。
1. ViaImageView.java
package com.farina.farinaimagelib; import android.content.Context;import android.content.res.TypedArray;import android.graphics.Bitmap;import android.graphics.Canvas;import android.graphics.Color;import android.graphics.Paint;import android.graphics.Path;import android.graphics.PorterDuff;import android.graphics.PorterDuffXfermode;import android.graphics.RectF;import android.graphics.Xfermode;import android.graphics.drawable.Drawable;import android.graphics.drawable.NinePatchDrawable;import android.util.AttributeSet;import android.widget.ImageView; /** * Created by FarinaZhang on 2016/5/25. */public class ViaImageView extends ImageView { private int shapeType=-1; private int borderWidth=0; //the image "s border width private int borderColor= Color.BLACK; //the image "s border color private boolean useDefaultStyle =false; //draw a common imageview private static final Xfermode MASK_XFERMODE; private int AnimType=-1; //动画类型 private int mWidth; //图片的宽度 private int mHeight; //图片的高度static { PorterDuff.Mode localMode = PorterDuff.Mode.DST_IN; MASK_XFERMODE = new PorterDuffXfermode(localMode); }public static enum Shape {circle,triangle,star,hexagonal,rectangle};public ViaImageView(Context context){ super(context); init(context, null, 0); } public ViaImageView(Context context, AttributeSet attrs){ super(context, attrs); init(context, attrs, 0); } public ViaImageView(Context context,AttributeSet attrs,int defStyle){ super(context, attrs, defStyle); init(context, attrs, defStyle); }public void init(Context context,AttributeSet attrs,int defStyle){ if(attrs!=null){TypedArray a = getContext().obtainStyledAttributes( attrs,R.styleable.viaImage, defStyle, 0);shapeType = (int)a.getInteger(R.styleable.viaImage_shapeType,shapeType);borderWidth=(int)a.getDimension(R.styleable.viaImage_borderWidth,borderWidth);borderColor = a.getColor(R.styleable.viaImage_borderColor, borderColor); a.recycle();} }/** *外部接口 *设置ImageView的属性,包括形状,边框颜色,边框宽度 **/ public void setImageViewProperty(int shapeType,int width,int color){ this.shapeType = shapeType; this.borderWidth = width; this.borderColor = color;postInvalidate(); }public void setImageViewShape(int shapeType){ this.shapeType = shapeType;postInvalidate(); }public void setImageBorderWidth(int width){ this.borderWidth = width; postInvalidate(); } public void setImageBorderColor(int color){ this.borderColor = color; postInvalidate(); } /** 外部接口 * 设置是否以默认格式绘制,普通格式 */ public void setDrawCommonImage(boolean isCommon){ this.useDefaultStyle=isCommon; }@Override protected void onDraw(Canvas canvas){ if(useDefaultStyle){super.onDraw(canvas);return; } final Drawable localDrawable=getDrawable(); if(localDrawable==null)return; if(localDrawable instanceof NinePatchDrawable)return;mWidth=getWidth(); mHeight=getHeight();int layer=canvas.saveLayer(0.0f,0.0f,mWidth,mHeight,null,Canvas.ALL_SAVE_FLAG); localDrawable.setBounds(0,0,mWidth,mHeight); /*将drawable绑定到bitmap(this.mask)上面(drawable 只能通过bitmap显示出来)*/ localDrawable.draw(canvas);createShapeBitmap(canvas);/*将画布复制到layer上*/ canvas.restoreToCount(layer);if(borderWidth!=0){drawBorder(canvas); }} private void createShapeBitmap(Canvas canvas){ Paint mypaint;mypaint = new Paint(); mypaint.setFilterBitmap(false); mypaint.setAntiAlias(true); mypaint.setXfermode(MASK_XFERMODE); Bitmap.Config localConfig=Bitmap.Config.ARGB_8888;Bitmap localBitmap=Bitmap.createBitmap(mWidth,mHeight,localConfig);Canvas localCanvas=new Canvas(localBitmap);Paint localPaint = new Paint();localPaint.setAntiAlias(true);int padding=borderWidth;int radius = ((mWidth>mHeight)?mHeight:mWidth)/2-padding; switch(shapeType){case 0://圆形;{ localCanvas.drawCircle(mWidth/2,mHeight/2, radius, localPaint); break;}case 1://三角形;{ Path path = new Path(); path.moveTo(padding, padding); path.lineTo(mWidth / 2, (float)(mWidth*Math.cos(degree2Radian(30))-padding)); path.lineTo(mWidth-padding, padding);path.close(); localCanvas.drawPath(path, localPaint); break;}case 2://五角星形;{ Path path = new Path(); float radian = degree2Radian(36);// 36为五角星的角度 float radius_in = (float) (radius * Math.sin(radian / 2) / Math.cos(radian)); // 中间五边形的半径path.moveTo((float) (radius * Math.cos(radian / 2)), 0);// 此点为多边形的起点 path.lineTo((float) (radius * Math.cos(radian / 2) + radius_in * Math.sin(radian)),(float) (radius - radius * Math.sin(radian / 2))); path.lineTo((float) (radius * Math.cos(radian / 2) * 2),(float) (radius - radius * Math.sin(radian / 2))); path.lineTo((float) (radius * Math.cos(radian / 2) + radius_in * Math.cos(radian / 2)),(float) (radius + radius_in * Math.sin(radian / 2))); path.lineTo((float) (radius * Math.cos(radian / 2) + radius * Math.sin(radian)), (float) (radius + radius * Math.cos(radian))); path.lineTo((float) (radius * Math.cos(radian / 2)),(float) (radius + radius_in)); path.lineTo((float) (radius * Math.cos(radian / 2) - radius * Math.sin(radian)), (float) (radius + radius * Math.cos(radian))); path.lineTo((float) (radius * Math.cos(radian / 2) - radius_in * Math.cos(radian / 2)),(float) (radius + radius_in * Math.sin(radian / 2))); path.lineTo(0, (float) (radius - radius * Math.sin(radian / 2))); path.lineTo((float) (radius * Math.cos(radian / 2) - radius_in * Math.sin(radian)),(float) (radius - radius * Math.sin(radian / 2)));path.close();// 使这些点构成封闭的多边形 localCanvas.drawPath(path, localPaint); break;}case 3://正六边形;{ Path path= new Path(); float radian = degree2Radian(30); path.moveTo((float)(radius*Math.sin(radian)), 0); path.lineTo((float)(radius*Math.sin(radian)+radius), 0); path.lineTo((float)(2*radius), (float)(radius*Math.cos(radian)) ); path.lineTo((float)(radius*Math.sin(radian)+radius),(float)(2*(radius*Math.cos(radian)))); path.lineTo((float)(radius*Math.sin(radian)),(float)(2*(radius*Math.cos(radian)))); path.lineTo(0,(float)(radius*Math.cos(radian))); path.close(); localCanvas.drawPath(path,localPaint); break;}default://方形{ int realWidth = (mWidth>mHeight)?mHeight:mWidth; int x = padding +(mWidth-realWidth)/2; int y = padding +(mHeight-realWidth)/2; RectF localRectF=new RectF(x, y, realWidth-padding*2, realWidth-padding*2); localCanvas.drawRect(localRectF, localPaint); break;}} /*将bitmap 画到canvas上*/ canvas.drawBitmap(localBitmap,0.0f,0.0f,mypaint); }//画边框 private void drawBorder(Canvas canvas){ Paint localPaint = new Paint(); localPaint.setColor(borderColor); localPaint.setStyle(Paint.Style.STROKE); localPaint.setStrokeWidth(borderWidth); localPaint.setAntiAlias(true);int radius=((mWidth>mHeight)?mHeight:mWidth)/2-borderWidth/2; int padding = borderWidth/2; switch(shapeType){case 0://圆形;{canvas.drawCircle(mWidth/2, mHeight/2,radius,localPaint);break;}case 1://三角形;{Path path = new Path();path.moveTo(padding, padding);path.lineTo(mWidth / 2, (float)(mWidth*Math.cos(degree2Radian(30))-padding));path.lineTo(mWidth-padding, padding); path.close();canvas.drawPath(path, localPaint);break;}case 2://五角星形;{Path path = new Path();float radian = degree2Radian(36);// 36为五角星的角度float radius_in = (float) (radius * Math.sin(radian / 2) / Math .cos(radian)); // 中间五边形的半径 path.moveTo((float) (radius * Math.cos(radian / 2)), 0);// 此点为多边形的起点path.lineTo((float) (radius * Math.cos(radian / 2) + radius_in* Math.sin(radian)), (float) (radius - radius * Math.sin(radian / 2)));path.lineTo((float) (radius * Math.cos(radian / 2) * 2), (float) (radius - radius * Math.sin(radian / 2)));path.lineTo((float) (radius * Math.cos(radian / 2) + radius_in* Math.cos(radian / 2)), (float) (radius + radius_in * Math.sin(radian / 2)));path.lineTo( (float) (radius * Math.cos(radian / 2) + radius* Math.sin(radian)), (float) (radius + radius* Math.cos(radian)));path.lineTo((float) (radius * Math.cos(radian / 2)), (float) (radius + radius_in));path.lineTo( (float) (radius * Math.cos(radian / 2) - radius* Math.sin(radian)), (float) (radius + radius* Math.cos(radian)));path.lineTo((float) (radius * Math.cos(radian / 2) - radius_in* Math.cos(radian / 2)), (float) (radius + radius_in * Math.sin(radian / 2)));path.lineTo(0, (float) (radius - radius * Math.sin(radian / 2)));path.lineTo((float) (radius * Math.cos(radian / 2) - radius_in* Math.sin(radian)), (float) (radius - radius * Math.sin(radian / 2))); path.close();// 使这些点构成封闭的多边形canvas.drawPath(path, localPaint);break;}case 3://正六边形;{Path path= new Path();float radian = degree2Radian(30);path.moveTo((float)(radius*Math.sin(radian)), 0);path.lineTo((float)(radius*Math.sin(radian)+radius), 0);path.lineTo((float)(2*radius), (float)(radius*Math.cos(radian)) );path.lineTo((float)(radius*Math.sin(radian)+radius),(float)(2*(radius*Math.cos(radian))));path.lineTo((float)(radius*Math.sin(radian)),(float)(2*(radius*Math.cos(radian))));path.lineTo(0,(float)(radius*Math.cos(radian)));path.close();canvas.drawPath(path,localPaint);break;}default://方形{int realWidth = (mWidth>mHeight)?mHeight:mWidth-borderWidth;int x = padding +(mWidth-realWidth)/2;int y = padding +(mHeight-realWidth)/2;RectF localRectF=new RectF(x, y, realWidth-padding*2, realWidth-padding*2);canvas.drawRect(localRectF, localPaint);break;} } }//将角度转化为弧度 private float degree2Radian(int degree) { // TODO Auto-generated method stub return (float) (Math.PI * degree / 180); } }
2. ContactExpendListAdapter.java
package com.farina.adapter; import android.content.Context;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.BaseExpandableListAdapter;import android.widget.ImageView;import android.widget.TextView; import com.farina.data.FriendEntity;import com.farina.data.FriendListData;import com.farina.farinaimagelib.ViaImageView;import com.farina.libtest.R; import java.util.List; /** * Created by FarinaZhang on 2016/7/5. */public class ContactExpendListAdapter extends BaseExpandableListAdapter { private Context mContext; private List<FriendListData> mListData; public ContactExpendListAdapter(Context context, List<FriendListData> data){ mContext = context; mListData = data; } @Override public int getGroupCount(){ return mListData.size(); } @Override public int getChildrenCount(int groupPosition){ return mListData.get(groupPosition).getFriendChildList().size(); } @Override public Object getGroup(int groupPosition){ return mListData.get(groupPosition).getGroupName(); } @Override public Object getChild(int groupPosition, int childPosition){ return mListData.get(groupPosition).getFriendChildList().get(childPosition); } @Override public long getGroupId(int groupPosition){ return groupPosition; } @Override public long getChildId(int groupPosition, int childPosition){ return childPosition; } @Override public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent){ groupHolder viewHolder =null; if(convertView == null){convertView = LayoutInflater.from(mContext).inflate(R.layout.contact_list_group, null);viewHolder = new groupHolder();viewHolder.icon = (ImageView)convertView.findViewById(R.id.icon);viewHolder.groupName = (TextView)convertView.findViewById(R.id.goup_name);convertView.setTag(viewHolder); }else{viewHolder = (groupHolder)convertView.getTag(); }viewHolder.groupName.setText(mListData.get(groupPosition).getGroupName()); if(isExpanded){viewHolder.icon.setImageResource(R.mipmap.arrow_down); }else{viewHolder.icon.setImageResource(R.mipmap.arrow_up); }return convertView; } @Override public View getChildView(int groupPosition, int childPosition, boolean isLastChild,View convertView, ViewGroup parent){ memberHolder viewHolder = null; if(convertView == null){convertView = LayoutInflater.from(mContext).inflate(R.layout.contact_list_member, null); viewHolder= new memberHolder();viewHolder.memberImg = (ViaImageView) convertView.findViewById(R.id.member_img);viewHolder.memberName = (TextView)convertView.findViewById(R.id.member_name);convertView.setTag(viewHolder); }else{viewHolder =(memberHolder)convertView.getTag(); } FriendEntity entity= mListData.get(groupPosition).getFriendChildList().get(childPosition); String icnPath = entity.getIcnPath(); if(icnPath == null||icnPath.length()<=0) {viewHolder.memberImg.setImageDrawable(mContext.getResources().getDrawable(R.mipmap.user_img)); } viewHolder.memberName.setText(entity.getName()); return convertView; } @Override public boolean isChildSelectable(int groupPosition, int childPosition) { return true; }@Override public boolean hasStableIds(){ return true; }private class memberHolder{ ViaImageView memberImg; TextView memberName; } private class groupHolder{ ImageView icon; TextView groupName; } }
3. ChatInfoManager.java
package com.farina.db; import android.content.ContentValues;import android.content.Context;import android.database.Cursor;import android.database.sqlite.SQLiteDatabase; import com.farina.data.FriendEntity;import com.farina.data.FriendListData;import com.farina.data.GroupEntity;import com.farina.data.MessageEntity;import com.farina.data.UserEntity; import java.util.ArrayList;import java.util.List; /** * Created by FarinaZhang on 2016/7/14. */public class ChatInfoManager { private Context mContext; private ChatDBhelper mDBHelper;//table user string private final String USER_TABLE_NAME="users"; private final String USER_ID="id"; private final String USER_COUNT_NUMBER="countNumber"; private final String USER_NIKENAME="nikeName"; private final String USER_ICON_PATH="iconPath"; private final String USER_PHONE_NUMBER="phoneNumber"; private final String USER_MAIL_ADDR="mailAddr"; private final String USER_QQ_NUMBER="qqNumber"; private final String USER_WEIXIN_NUMBER="weixinNumber";//table friends string private final String FRIEND_TABLE_NAME="friends"; private final String FRIEND_ID="id"; private final String FRIEND_HOST_ID="hostId"; private final String FRIEND_GROUP_ID="groupId"; private final String FRIEND_NAME="friendName"; private final String FRIEND_ICON_PATH="iconPath"; private final String FRIEND_BELIVE="beLive";//table groups string private final String GROUP_TABLE_NAME="groups"; private final String GROUP_ID="id"; private final String GROUP_HOST_ID="hostId"; private final String GROUP_NAME="groupName";//table messages string private final String MESSAGE_TABLE_NAME="messages"; private final String MESSAGE_ID="id"; private final String MESSAGE_MESSAGE="message"; private final String MESSAGE_FROM_ID="fromId"; private final String MESSAGE_TO_ID="toId"; private final String MESSAGE_READED="readed"; private final String MESSAGE_TYPE="type"; private final String MESSAGE_TIME="time";public ChatInfoManager(Context context){ mContext = context; mDBHelper = ChatDBhelper.getInstance(mContext);} public void addUser(UserEntity user){SQLiteDatabase db = null; try {db = mDBHelper.getWritableDatabase();ContentValues values = new ContentValues();values.put(USER_ID,user.getId());values.put(USER_COUNT_NUMBER,user.getCountNumber());values.put(USER_NIKENAME,user.getNikeName());values.put(USER_ICON_PATH,user.getIconPath());values.put(USER_PHONE_NUMBER,user.getPhoneNumber());values.put(USER_MAIL_ADDR,user.getMailNumber());values.put(USER_QQ_NUMBER,user.getQQNumber());values.put(USER_WEIXIN_NUMBER,user.getWeixinNumber());db.insert(USER_TABLE_NAME, null, values);} catch (Exception e) {e.printStackTrace();// TODO: handle exception } finally {db.close(); } }public UserEntity getUserData(int index){ UserEntity user= new UserEntity(); SQLiteDatabase db =null; Cursor cursor = null;try {db = mDBHelper.getReadableDatabase();cursor = db.query(USER_TABLE_NAME, null, USER_ID + "=" + index, null, null, null, null);if (cursor != null) {user.setId(index);user.setCountNumber(cursor.getString(cursor.getColumnIndex(USER_COUNT_NUMBER)));user.setNikeName(cursor.getString(cursor.getColumnIndex(USER_NIKENAME)));user.setIconPath(cursor.getString(cursor.getColumnIndex(USER_ICON_PATH)));user.setPhoneNumber(cursor.getString(cursor.getColumnIndex(USER_PHONE_NUMBER)));user.setMailNumber(cursor.getString(cursor.getColumnIndex(USER_MAIL_ADDR)));user.setQQNumber(cursor.getString(cursor.getColumnIndex(USER_QQ_NUMBER)));user.setWeixinNumber(cursor.getString(cursor.getColumnIndex(USER_WEIXIN_NUMBER)));} else {return null;} }catch (Exception e){e.printStackTrace(); }finally{db.close(); } return user; } public List<UserEntity> getUserList(){ List<UserEntity> list =new ArrayList<UserEntity>(); SQLiteDatabase db =null; Cursor cursor=null;try{db=mDBHelper.getReadableDatabase();cursor=db.query(USER_TABLE_NAME,new String[]{USER_ID,USER_COUNT_NUMBER,USER_NIKENAME,USER_ICON_PATH},null,null,null,null,null);if(cursor!=null){while (cursor.moveToNext()) { UserEntity user= new UserEntity();user.setId(cursor.getInt(cursor.getColumnIndex(USER_ID))); user.setCountNumber(cursor.getString(cursor.getColumnIndex(USER_COUNT_NUMBER))); user.setNikeName(cursor.getString(cursor.getColumnIndex(USER_NIKENAME))); user.setIconPath(cursor.getString(cursor.getColumnIndex(USER_ICON_PATH))); list.add(user);}} }catch(Exception e){e.printStackTrace(); }finally{db.close(); } return list;}public void addFriend(FriendEntity friend){ SQLiteDatabase db=null;try{db=mDBHelper.getWritableDatabase();if(db==null)return ; ContentValues values = new ContentValues();values.put(FRIEND_ID,friend.getId());values.put(FRIEND_HOST_ID,friend.getHostId());values.put(FRIEND_GROUP_ID,friend.getgroupId());values.put(FRIEND_NAME,friend.getName());values.put(FRIEND_ICON_PATH,friend.getIcnPath());values.put(FRIEND_BELIVE,friend.getBeLive()); db.insert(FRIEND_TABLE_NAME,null,values); }catch(Exception e){e.printStackTrace(); }finally {db.close(); } }public List<FriendListData> getFriendList(){ SQLiteDatabase db=null; List<FriendListData> friendList=new ArrayList<FriendListData>(); List<GroupEntity> groupList= getGroupList();try{db = mDBHelper.getWritableDatabase();if (db == null) return null;for(int i=0;i<groupList.size();i++) {FriendListData friendGroup= new FriendListData();String groupName = groupList.get(i).getName();friendGroup.setGroupName(groupName); List<FriendEntity> groupChild=new ArrayList<FriendEntity>(); Cursor cursor = db.query(FRIEND_TABLE_NAME, null, GROUP_NAME+"="+groupName, null, null, FRIEND_ID + "ASC", null);while (cursor.moveToNext()) { FriendEntity entity = new FriendEntity(); entity.setId(cursor.getInt(cursor.getColumnIndex(FRIEND_ID))); entity.setgroupId(cursor.getInt(cursor.getColumnIndex(FRIEND_GROUP_ID))); entity.setHostId(cursor.getInt(cursor.getColumnIndex(FRIEND_HOST_ID))); entity.setName(cursor.getString(cursor.getColumnIndex(FRIEND_NAME))); entity.setIcnPath(cursor.getString(cursor.getColumnIndex(FRIEND_ICON_PATH))); String beLive = cursor.getString(cursor.getColumnIndex(FRIEND_BELIVE)); entity.setBeLive(beLive.equals("1")); groupChild.add(entity);}friendGroup.setFriendChildList(groupChild);friendList.add(friendGroup);}}catch(Exception e){e.printStackTrace(); }finally {db.close(); } return friendList; }public List<GroupEntity> getGroupList(){ List<GroupEntity> groupList = null; SQLiteDatabase db=null;try{db= mDBHelper.getReadableDatabase();Cursor cursor =db.query(GROUP_TABLE_NAME,null,null,null,null,null,null);while(cursor.moveToNext()){GroupEntity entity =new GroupEntity();entity.setId(cursor.getInt(cursor.getColumnIndex(GROUP_ID)));entity.setHostId(cursor.getInt(cursor.getColumnIndex(GROUP_HOST_ID)));entity.setGroupName(cursor.getString(cursor.getColumnIndex(GROUP_NAME))); groupList.add(entity);} }catch(Exception e){e.printStackTrace(); }finally{db.close(); } return groupList; }public void addGroupMember(GroupEntity group){ SQLiteDatabase db=null;try{db=mDBHelper.getWritableDatabase();ContentValues values=new ContentValues();values.put(GROUP_ID,group.getId());values.put(GROUP_HOST_ID,group.getHostId());values.put(GROUP_NAME,group.getName());db.insert(GROUP_TABLE_NAME,null,values); }catch(Exception e){e.printStackTrace(); }finally {db.close(); } }public List<MessageEntity> getMessageList(String loadId){ List<MessageEntity> list = new ArrayList<MessageEntity>(); SQLiteDatabase db=null; Cursor cursor=null; try{db=mDBHelper.getReadableDatabase(); cursor=db.query(MESSAGE_TABLE_NAME,null, MESSAGE_FROM_ID+"=?,"+MESSAGE_TO_ID+"=?", new String[]{loadId}, null, loadId,MESSAGE_TIME+"DES",null);while(cursor.moveToNext()){MessageEntity entity =new MessageEntity();entity.setId(cursor.getInt(cursor.getColumnIndex(MESSAGE_ID)));entity.setFromId(cursor.getInt(cursor.getColumnIndex(MESSAGE_FROM_ID)));entity.setToId(cursor.getInt(cursor.getColumnIndex(MESSAGE_TO_ID)));entity.setMessageStr(cursor.getString(cursor.getColumnIndex(MESSAGE_MESSAGE)));entity.setType(cursor.getString(cursor.getColumnIndex(MESSAGE_TYPE)));entity.setTime(cursor.getString(cursor.getColumnIndex(MESSAGE_TIME))); list.add(entity);}}catch (Exception e){e.printStackTrace(); }finally{db.close(); }return list; }public void setMessageItem(MessageEntity message){ SQLiteDatabase db=null;try{db=mDBHelper.getWritableDatabase();if(db==null)return; ContentValues values = new ContentValues();values.put(MESSAGE_ID,message.getId());values.put(MESSAGE_FROM_ID,message.getFromId());values.put(MESSAGE_TO_ID,message.getToId());values.put(MESSAGE_MESSAGE,message.getMessageStr());values.put(MESSAGE_TYPE,message.getType());values.put(MESSAGE_TIME,message.getTime());db.insert(MESSAGE_TABLE_NAME,null,values); }catch(Exception e){e.printStackTrace(); }finally {db.close(); } } }
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