Android Open Source - TileView Fixed Layout

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Back to project page TileView.

License

The source code is released under:

MIT License

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Java Source Code

package com.qozix.layouts;
// w  w w. j  a  v  a2 s  .c o m
import android.content.Context;
import android.view.View;
import android.view.ViewGroup;

public class FixedLayout extends ViewGroup {
  
  public FixedLayout(Context context) {
    super(context);
  }
  
  @Override
  protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {

    measureChildren(widthMeasureSpec, heightMeasureSpec);

    int w = 0;
    int h = 0;    

    int count = getChildCount();
    for (int i = 0; i < count; i++) {
      View child = getChildAt(i);
      if (child.getVisibility() != GONE) {
        FixedLayout.LayoutParams lp = (FixedLayout.LayoutParams) child.getLayoutParams();
        int right = lp.x + child.getMeasuredWidth();
        int bottom = lp.y + child.getMeasuredHeight();
        w = Math.max(w, right);
        h = Math.max(h, bottom);
      }
    }

    h = Math.max(h, getSuggestedMinimumHeight());
    w = Math.max(w, getSuggestedMinimumWidth());
    
    w = resolveSize(w, widthMeasureSpec);
    h = resolveSize(h, heightMeasureSpec);
    
    setMeasuredDimension(w, h);
    
  }
  
  @Override
  protected ViewGroup.LayoutParams generateDefaultLayoutParams() {
    return new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, 0, 0);
  }

  @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);
      if (child.getVisibility() != GONE) {
        FixedLayout.LayoutParams lp = (FixedLayout.LayoutParams) child.getLayoutParams();
        child.layout(lp.x, lp.y, lp.x + child.getMeasuredWidth(), lp.y + child.getMeasuredHeight());
      }
    }
  }

  @Override
  protected boolean checkLayoutParams(ViewGroup.LayoutParams p) {
    return p instanceof FixedLayout.LayoutParams;
  }

  @Override
  protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) {
    return new LayoutParams(p);
  }

  public static class LayoutParams extends ViewGroup.LayoutParams {

    public int x = 0;
    public int y = 0;

    public LayoutParams(int width, int height, int left, int top) {
      super(width, height);
      x = left;
      y = top;
    }
    
    public LayoutParams(int width, int height){
      super(width, height);
    }

    public LayoutParams(ViewGroup.LayoutParams source) {
      super(source);
    }
  }
}

Java Source Code List