android 使用代码实现 RelativeLayout布局
2015-11-01 13:55
375 查看
只需把代码copy进入oncreate方法即可运行
RelativeLayout rl = new RelativeLayout(this);
Button btn1 = new Button(this);
btn1.setText("----------------------");
btn1.setId(1);
RelativeLayout.LayoutParams lp1 = new RelativeLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
lp1.addRule(RelativeLayout.ALIGN_PARENT_TOP);
lp1.addRule(RelativeLayout.CENTER_HORIZONTAL, RelativeLayout.TRUE);
// btn1 位于父 View 的顶部,在父 View 中水平居中
rl.addView(btn1, lp1 );
Button btn2 = new Button(this);
btn2.setText("|\n|\n|\n|\n|\n|");
btn2.setId(2);
RelativeLayout.LayoutParams lp2 = new RelativeLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
lp2.addRule(RelativeLayout.BELOW, 1);
lp2.addRule(RelativeLayout.ALIGN_LEFT, 1);
// btn2 位于 btn1 的下方、其左边和 btn1 的左边对齐
rl.addView(btn2, lp2);
Button btn3 = new Button(this);
btn3.setText("|\n|\n|\n|\n|\n|");
btn3.setId(3);
RelativeLayout.LayoutParams lp3 = new RelativeLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
lp3.addRule(RelativeLayout.BELOW, 1);
lp3.addRule(RelativeLayout.RIGHT_OF, 2);
lp3.addRule(RelativeLayout.ALIGN_RIGHT, 1);
// btn3 位于 btn1 的下方、btn2 的右方且其右边和 btn1 的右边对齐(要扩充)
rl.addView(btn3,lp3);
Button btn4 = new Button(this);
btn4.setText("--------------------------------------------");
btn4.setId(4);
RelativeLayout.LayoutParams lp4 = new RelativeLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
lp4.addRule(RelativeLayout.BELOW, 2);
lp4.addRule(RelativeLayout.CENTER_HORIZONTAL, RelativeLayout.TRUE);
// btn4 位于 btn2 的下方,在父 Veiw 中水平居中
rl.addView(btn4,lp4);
setContentView(rl);
RelativeLayout rl = new RelativeLayout(this);
Button btn1 = new Button(this);
btn1.setText("----------------------");
btn1.setId(1);
RelativeLayout.LayoutParams lp1 = new RelativeLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
lp1.addRule(RelativeLayout.ALIGN_PARENT_TOP);
lp1.addRule(RelativeLayout.CENTER_HORIZONTAL, RelativeLayout.TRUE);
// btn1 位于父 View 的顶部,在父 View 中水平居中
rl.addView(btn1, lp1 );
Button btn2 = new Button(this);
btn2.setText("|\n|\n|\n|\n|\n|");
btn2.setId(2);
RelativeLayout.LayoutParams lp2 = new RelativeLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
lp2.addRule(RelativeLayout.BELOW, 1);
lp2.addRule(RelativeLayout.ALIGN_LEFT, 1);
// btn2 位于 btn1 的下方、其左边和 btn1 的左边对齐
rl.addView(btn2, lp2);
Button btn3 = new Button(this);
btn3.setText("|\n|\n|\n|\n|\n|");
btn3.setId(3);
RelativeLayout.LayoutParams lp3 = new RelativeLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
lp3.addRule(RelativeLayout.BELOW, 1);
lp3.addRule(RelativeLayout.RIGHT_OF, 2);
lp3.addRule(RelativeLayout.ALIGN_RIGHT, 1);
// btn3 位于 btn1 的下方、btn2 的右方且其右边和 btn1 的右边对齐(要扩充)
rl.addView(btn3,lp3);
Button btn4 = new Button(this);
btn4.setText("--------------------------------------------");
btn4.setId(4);
RelativeLayout.LayoutParams lp4 = new RelativeLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
lp4.addRule(RelativeLayout.BELOW, 2);
lp4.addRule(RelativeLayout.CENTER_HORIZONTAL, RelativeLayout.TRUE);
// btn4 位于 btn2 的下方,在父 Veiw 中水平居中
rl.addView(btn4,lp4);
setContentView(rl);
相关文章推荐
- android之Volley框架的使用(1)
- Android Bitmap图像处理(2)- 图片缓存
- android之存储篇_SQLite数据库_让你彻底学会SQLite的使用<转载>
- Android加载/处理超大图片神器!SubsamplingScaleImageView(subsampling-scale-image-view)【系列1】
- ArrayAdapter
- 借助VBA语言来分析布局代码,自动生成Android控件的定义代码
- Android开发者网址导航
- android studio中api 23的消息推送机制
- Android团队
- PagerAdapter滑动页面,onpagechangelistener监听滑动
- android getExternalStorageDirectory() 和 getExternalStorageState()
- 代码分析Android实现侧滑菜单
- Android绘图机制(三) ViewGroup类的延伸
- Android绘图机制(二) ViewGroup类
- Android绘图机制(一) View类
- Android 开发艺术探索读书笔记
- Android项目重构之路:实现篇
- Android项目重构之路:界面篇
- HandlerThread 源码解析
- IntentService 源码解析