自定义控件textview

 

自定义控件名称

public class CheyouquanLinearLayout extends ViewGroup {
  int mLeft, mRight, mTop, mBottom;
     @SuppressWarnings("rawtypes")
  Hashtable map = new Hashtable();
     public CheyouquanLinearLayout(Context context) {
         super(context);
     }

     public CheyouquanLinearLayout(Context context, int horizontalSpacing, int verticalSpacing) {
         super(context);
     }

     public CheyouquanLinearLayout(Context context, AttributeSet attrs) {
         super(context, attrs);
     }

     @SuppressLint("DrawAllocation")
  @SuppressWarnings("unchecked")
  @Override
     protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
         int mWidth = MeasureSpec.getSize(widthMeasureSpec);
         int mCount = getChildCount();
         int mX = 0;
         int mY = 0;
         mLeft = 0;
         mRight = 0;
         mTop = 0;
         mBottom = 0;
         int j = 0;
         @SuppressWarnings("unused")
   View lastview = null;
         for (int i = 0; i < mCount; i++) {
             final TextView child = (TextView) getChildAt(i);
             String ss=child.getText().toString();
           
             child.measure(MeasureSpec.UNSPECIFIED, MeasureSpec.UNSPECIFIED);
             // 此处增加onlayout中的换行判断，用于计算所需的高度
             int childw = child.getMeasuredWidth();
             int childh = child.getMeasuredHeight();
             mX += childw;  //将每次子控件宽度进行统计叠加，如果大于设定的高度则需要换行，高度即Top坐标也需重新设置

             Position position = new Position();
             mLeft = getPosition(i - j, i);
             mRight = mLeft + childw;
             if (mX >= mWidth) {
                 mX = childw;
                 mY += childh;
                 j = i;
                 mLeft = 0;
                 mRight = mLeft + child.getMeasuredWidth();
     mTop = mY;
     //PS：如果发现高度还是有问题就得自己再细调了
             }
             mBottom = mTop + child.getMeasuredHeight();
             mY = mTop;  //每次的高度必须记录 否则控件会叠加到一起
             position.left = mLeft;
             position.top = mTop;
             position.right = mRight;
             position.bottom = mBottom;
             map.put(child, position);
         }
         setMeasuredDimension(mWidth, mBottom);
     }

     @Override
     protected LayoutParams generateDefaultLayoutParams() {
         return new LayoutParams(1, 1); // default of 1px spacing
     }

     @Override
     protected void onLayout(boolean changed, int l, int t, int r, int b) {
         int count = getChildCount();
         for (int i = 0; i < count; i++) {
             View child = getChildAt(i);
             Position pos = (Position) map.get(child);
             if (pos != null) {
                 child.layout(pos.left, pos.top, pos.right, pos.bottom);
             } else {
                 Log.i("MyLayout", "error");
             }
         }
     }

     private class Position {
         int left, top, right, bottom;
     }

     public int getPosition(int IndexInRow, int childIndex) {
         if (IndexInRow > 0) {
             return getPosition(IndexInRow - 1, childIndex - 1)
                     + getChildAt(childIndex - 1).getMeasuredWidth();
         }
         return getPaddingLeft();
     }

 

动态加载人名

 // 赞的人名
   DisplayMetrics metric = new DisplayMetrics(); 
   context.getWindowManager().getDefaultDisplay().getMetrics(metric);
      //dp转化成px
   float scale = context.getResources().getDisplayMetrics().density;
   int widthQi=(int) (125*scale + 0.5f);
   int widthQuan = metric.widthPixels-widthQi; //获取屏幕的宽度
   float widthQ=0;
   for (int a = 0; a < zList.size(); a++) {
    String name=zList.get(a).getNick_name();
    final String userid=zList.get(a).getUser_id();
    if(a!=0){
     TextView tv_dun=new TextView(context);
     tv_dun.setText(",");
     tv_dun.setTextColor(Color.rgb(20, 150, 193));
     viewHolder.tv_zan_name.addView(tv_dun);
     int wName2 = View.MeasureSpec.makeMeasureSpec(0,View.MeasureSpec.UNSPECIFIED);
        int hName2 = View.MeasureSpec.makeMeasureSpec(0,View.MeasureSpec.UNSPECIFIED);
        tv_dun.measure(wName2,hName2);
        widthQ=tv_dun.getMeasuredWidth()+widthQ;
    }
    /***************以下为换行操作start**********************/
    //获取数据宽度
       TextView tvName=new TextView(context);
       tvName.setText(name);
       tvName.setTextSize(14);
    int wgName = View.MeasureSpec.makeMeasureSpec(0,View.MeasureSpec.UNSPECIFIED);
       int hgName = View.MeasureSpec.makeMeasureSpec(0,View.MeasureSpec.UNSPECIFIED);
       tvName.measure(wgName, hgName);
       //获取字符串的长度
    int widthName=tvName.getMeasuredWidth();//px
    //获取前面的本行的所有宽度
    float widthD=widthQ;
    widthQ=widthName+widthQ;
    if(widthQ<=widthQuan){
     TextView tv=new TextView(context);
     tv.setText(name);
     tv.setTextSize(14);
     tv.setTextColor(Color.rgb(20, 150, 193));
     viewHolder.tv_zan_name.addView(tv);
     tv.setOnClickListener(new OnClickListener() {
      @Override
      public void onClick(View v) {
       Intent intent = new Intent(context, MyPhotoActivity.class);
       intent.putExtra("friends_id",userid);
       context.startActivity(intent);
      }
     });
    }else{
     float widths=widthQuan-widthD;
     String b="";
     int wss=0;
     for(int h=0;h<name.length();h++){
      b=b+name.charAt(h);
      
      TextView tvName2=new TextView(context);
      tvName2.setText(b);
      tvName2.setTextSize(14);
      int wName2 = View.MeasureSpec.makeMeasureSpec(0,View.MeasureSpec.UNSPECIFIED);
         int hName2 = View.MeasureSpec.makeMeasureSpec(0,View.MeasureSpec.UNSPECIFIED);
         tvName2.measure(wName2,hName2);
         //获取字符串的长度
      int wsName2=tvName2.getMeasuredWidth();//px
      if(wsName2>widths){
       wss=h-1;
       break;
      }else if(wsName2==widths){
       wss=h;
       break;
      }
     }
     /**一个textview拆成两个textview*/
     String name1=name.substring(0, wss+1);
     String name2=name.substring(wss+1,name.length());
     if(!TextUtils.isEmpty(name1)){
      TextView tv=new TextView(context);
      tv.setText(name1);
      tv.setTextSize(14);
      tv.setTextColor(Color.rgb(20, 150, 193));
      viewHolder.tv_zan_name.addView(tv);
      tv.setOnClickListener(new OnClickListener() {
       
       @Override
       public void onClick(View v) {
        Intent intent = new Intent(context, MyPhotoActivity.class);
        intent.putExtra("friends_id",userid);
        context.startActivity(intent);       
       }
      });
     }
     if(!TextUtils.isEmpty(name2)){
      TextView tv=new TextView(context);
      tv.setText(name2);
      tv.setTextSize(14);
      tv.setEllipsize(TruncateAt.END);
      tv.setTextColor(Color.rgb(20, 150, 193));
      viewHolder.tv_zan_name.addView(tv);
      tv.setOnClickListener(new OnClickListener() {
       @Override
       public void onClick(View v) {
        Intent intent = new Intent(context, MyPhotoActivity.class);
        intent.putExtra("friends_id",userid);
        context.startActivity(intent);       }
      });
     }
     TextView tv6=new TextView(context);
     tv6.setText(name2);
     tv6.setTextSize(14);
     int wg6 = View.MeasureSpec.makeMeasureSpec(0,View.MeasureSpec.UNSPECIFIED);
        int hg6 = View.MeasureSpec.makeMeasureSpec(0,View.MeasureSpec.UNSPECIFIED);
        tv6.measure(wg6, hg6);
        //获取字符串的长度
     int w2Px=tv6.getMeasuredWidth();//px
     widthQ=w2Px;
     /*************以上为换行操作end*******************/
    }
   }