Android动态添加设置布局与控件的方法

 package com.example.cg.fangduo; import android.content.Context; import android.graphics.Color; import android.os.Bundle; import android.support.v4.app.Fragment; import android.util.TypedValue; import android.view.Gravity; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.ImageView; import android.widget.LinearLayout; import android.widget.ScrollView; import android.widget.TextView; /** * A simple {@link Fragment} subclass. */ public class fragment_hot extends Fragment { //定义当前页面 private View view; private LinearLayout line_fragment_hot_main; private ScrollView id_stickynavlayout_innerscrollview; @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { view = inflater.inflate(R.layout.fragment_hot, container, false); id_stickynavlayout_innerscrollview = (ScrollView)view.findViewById(R.id.id_stickynavlayout_innerscrollview); line_fragment_hot_main = (LinearLayout)view.findViewById(R.id.line_fragment_hot_main); for(int i=0;i<10;i++) { /** * 设置每个item最外层的LinearLayout */ LinearLayout itemMain = new LinearLayout(getActivity()); itemMain.setOrientation(LinearLayout.HORIZONTAL); //设置linearLayout是横向还是竖各 LinearLayout.LayoutParams itemMainparams = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, dip2px(getActivity(), 80)); //设置宽与高 itemMainparams.setMargins(0,dip2px(getActivity(),1),0,0); //设置每个item与上一个控件的间隔是1dip itemMain.setLayoutParams(itemMainparams); itemMain.setBackgroundColor(Color.WHITE); //设置背景色 itemMain.setVerticalGravity(Gravity.CENTER); //设置对齐方式 /** * 设置左侧图片LinearLayout */ LinearLayout itempic = new LinearLayout(getActivity()); itempic.setOrientation(LinearLayout.HORIZONTAL); LinearLayout.LayoutParams itempicparams = new LinearLayout.LayoutParams(0, dip2px(getActivity(), 70), 1); itempic.setLayoutParams(itempicparams); itempic.setVerticalGravity(Gravity.CENTER_VERTICAL); /** * 设置图片 */ ImageView imgPic = new ImageView(getActivity()); imgPic.setImageResource(R.drawable.desktop_device); LinearLayout.LayoutParams imgPicparams = new LinearLayout.LayoutParams(dip2px(getActivity(), ViewGroup.LayoutParams.WRAP_CONTENT), dip2px(getActivity(), ViewGroup.LayoutParams.WRAP_CONTENT)); imgPicparams.leftMargin = dip2px(getActivity(), 5); imgPicparams.gravity = Gravity.LEFT;  //必须要加上这句，setMargins才会起作用，而且此句还必须在setMargins下面 imgPic.setLayoutParams(imgPicparams); /** * 图片LinearLayout加载图片 */ itempic.addView(imgPic, imgPicparams); /** * 向主LinearLayout加载图片LinearLayout */ itemMain.addView(itempic); /** * 设置中间文字显示LinearLayout */ LinearLayout itemtext = new LinearLayout(getActivity()); itemtext.setOrientation(LinearLayout.VERTICAL); LinearLayout.LayoutParams itemtextparams = new LinearLayout.LayoutParams(0, dip2px(getActivity(), 70), 1); itemtext.setLayoutParams(itemtextparams); itemtext.setVerticalGravity(Gravity.CENTER_VERTICAL); TextView txtOne = new TextView(getActivity()); txtOne.setText("珠江俊景小区"); txtOne.setTextSize(TypedValue.COMPLEX_UNIT_DIP, 12); //设置字号，并且设置它的单位为dip txtOne.getPaint().setFakeBoldText(true); //字体加租 LinearLayout.LayoutParams txtOneparams = new LinearLayout.LayoutParams(dip2px(getActivity(), ViewGroup.LayoutParams.WRAP_CONTENT), dip2px(getActivity(), ViewGroup.LayoutParams.WRAP_CONTENT)); txtOneparams.weight = 1; txtOneparams.setMargins(0, 0, 0, 0); txtOneparams.gravity = Gravity.LEFT; txtOne.setLayoutParams(txtOneparams); itemtext.addView(txtOne); TextView txtTwo = new TextView(getActivity()); txtTwo.setText("哈尔滨"); txtTwo.getPaint().setFakeBoldText(true); txtTwo.setTextSize(TypedValue.COMPLEX_UNIT_DIP, 8); LinearLayout.LayoutParams txtTwoparams = new LinearLayout.LayoutParams(dip2px(getActivity(), ViewGroup.LayoutParams.WRAP_CONTENT), dip2px(getActivity(), ViewGroup.LayoutParams.WRAP_CONTENT)); txtTwoparams.weight = 1; txtTwo.setLayoutParams(txtTwoparams); itemtext.addView(txtTwo); TextView txtThree = new TextView(getActivity()); txtThree.setText("一万抵五万"); txtThree.getPaint().setFakeBoldText(true); txtThree.setTextSize(TypedValue.COMPLEX_UNIT_DIP, 8); txtThree.setLayoutParams(txtOneparams); itemtext.addView(txtThree); TextView txtFour = new TextView(getActivity()); txtFour.setText("8000元/m"); txtFour.setTextSize(TypedValue.COMPLEX_UNIT_DIP, 10); txtFour.setTextColor(Color.parseColor("#F97F49")); txtFour.getPaint().setFakeBoldText(true); txtFour.setLayoutParams(txtOneparams); itemtext.addView(txtFour); itemMain.addView(itemtext); /** * 定义右侧显示信息框架 */ LinearLayout line_right_text = new LinearLayout(getActivity()); line_right_text.setOrientation(LinearLayout.HORIZONTAL); LinearLayout.LayoutParams rightparams = new LinearLayout.LayoutParams(0, dip2px(getActivity(), 70), 1); line_right_text.setLayoutParams(rightparams); line_right_text.setGravity(Gravity.RIGHT);  //右对齐 TextView daytxt = new TextView(getActivity()); LinearLayout.LayoutParams daytxtparams = new LinearLayout.LayoutParams(dip2px(getActivity(), ViewGroup.LayoutParams.WRAP_CONTENT), dip2px(getActivity(), ViewGroup.LayoutParams.WRAP_CONTENT)); daytxt.setLayoutParams(daytxtparams); daytxt.setText("剩2天"); daytxt.setTextColor(Color.parseColor("#F97F49")); //设置颜色 daytxt.setTextSize(TypedValue.COMPLEX_UNIT_DIP, 10); //设置文字大小 daytxt.getPaint().setFakeBoldText(true); //设置文字样式，加粗 //daytxt.setPadding(0,2,2,0); line_right_text.addView(daytxt); TextView tuantxt = new TextView(getActivity()); LinearLayout.LayoutParams tuantxtparams = new LinearLayout.LayoutParams(dip2px(getActivity(), 12), dip2px(getActivity(), 12)); tuantxtparams.setMargins(dip2px(getActivity(), 2), dip2px(getActivity(), 0), dip2px(getActivity(), 5), 0); tuantxt.setLayoutParams(tuantxtparams); tuantxt.setBackgroundResource(R.drawable.rectangle_radius_fen);  //设置textView背景图片 tuantxt.setGravity(Gravity.CENTER); tuantxt.setText("团"); txtFour.getPaint().setFakeBoldText(true); tuantxt.setTextSize(TypedValue.COMPLEX_UNIT_DIP, 8); tuantxt.setTextColor(Color.parseColor("#ffffff")); line_right_text.addView(tuantxt); itemMain.addView(line_right_text); line_fragment_hot_main.addView(itemMain); } return view; } /** * 设备像素(dip,dp)转屏幕像素(px) * px就是像素，如果用px,就会用实际像素画，比个如吧，用画一条长度为240px的横线，在480宽的模拟器上看就是一半的屏宽，而在320宽的模拟器上看就是2／3的屏宽了。 　　  * 而dip，就是把屏幕的高分成480分，宽分成320分。比如你做一条160dip的横线，无论你在320还480的模拟器上，都是一半屏的长度。 * @param context * @param dipValue * @return */ public static int dip2px(Context context, float dipValue){ final float scale = context.getResources().getDisplayMetrics().density; return (int)(dipValue * scale + 0.5f); } /** * 将px值转换为sp值，保证文字大小不变 * * @param pxValue * @param pxValue *      （DisplayMetrics类中属性scaledDensity） * @return */ public static int px2sp(Context context, float pxValue) { final float fontScale = context.getResources().getDisplayMetrics().scaledDensity; return (int) (pxValue / fontScale + 0.5f); } /** * 将sp值转换为px值，保证文字大小不变 * * @param spValue * @param spValue *      （DisplayMetrics类中属性scaledDensity） * @return */ public static int sp2px(Context context, float spValue) { final float fontScale = context.getResources().getDisplayMetrics().scaledDensity; return (int) (spValue * fontScale + 0.5f); } }