后台动态添加布局文件、控件与动态设置属性

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后台动态添加布局文件、控件与动态设置属性2

http://blog.csdn.net/aojiancc2/article/details/47275295

翻译布局文件

布局文件

<LinearLayout            android:layout_width="fill_parent"            android:background="@drawable/myborder"        android:layout_marginTop="15dp"        android:orientation="vertical"        android:clickable="true"        android:layout_height="wrap_content">            <RelativeLayout                android:layout_width="fill_parent"                android:layout_height="39dp"                 android:gravity="center_horizontal">                        <ImageView                    android:id="@+id/iv_system_left"                    android:layout_width="wrap_content"                    android:layout_height="wrap_content"                    android:layout_alignParentLeft="true"                    android:layout_centerVertical="true"                    android:layout_marginLeft="12dp"                   android:src="@drawable/set7" />                              <TextView                    android:id="@+id/tv_system_title"                    android:layout_width="wrap_content"                    android:layout_height="wrap_content"                  android:layout_toRightOf="@+id/iv_system_left"                    android:layout_centerVertical="true"                    android:layout_marginLeft="11dp"                    android:text="分享"                     android:textColor="#000000"/>                        <ImageView                    android:id="@+id/iv_system_right"                    android:layout_width="wrap_content"                    android:layout_height="wrap_content"                    android:layout_alignParentRight="true"                    android:layout_centerVertical="true"                    android:layout_marginRight="12dp"                    android:src="@drawable/ios_arrow" />            </RelativeLayout>                        <LinearLayout android:layout_width="fill_parent"        android:layout_height="1px"        android:background="#cccccc"         android:layout_marginLeft="46dp"        ></LinearLayout>    </LinearLayout>

后台生成

public LinearLayout CreateSetting(Drawable img,String _text){RelativeLayout  rl = new RelativeLayout(getActivity().getApplicationContext());RelativeLayout.LayoutParams lp = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.MATCH_PARENT,Dp2Px(getActivity(),39));     lp.addRule(RelativeLayout.CENTER_HORIZONTAL);     rl.setLayoutParams(lp);               RelativeLayout.LayoutParams lpiv = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT,RelativeLayout.LayoutParams.WRAP_CONTENT);     lpiv.addRule(RelativeLayout.CENTER_VERTICAL,RelativeLayout.TRUE);     lpiv.addRule(RelativeLayout.ALIGN_PARENT_LEFT,RelativeLayout.TRUE);     lpiv.setMargins(Dp2Px(getActivity(),12), 0, 0, 0);     //lpiv.addRule(RelativeLayout.RIGHT_OF,iv.getId());          ImageView iv = new ImageView(getActivity().getApplicationContext());     iv.setLayoutParams(lpiv);     iv.setImageDrawable(img);          iv.setId(99);//动态相对布局必须设置id，getid才能取到          RelativeLayout.LayoutParams lp_tv = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT,RelativeLayout.LayoutParams.WRAP_CONTENT);     lp_tv.addRule(RelativeLayout.CENTER_VERTICAL,RelativeLayout.TRUE);     lp_tv.setMargins(Dp2Px(getActivity(),11), 0, 0, 0);     lp_tv.addRule(RelativeLayout.RIGHT_OF,iv.getId());     TextView tv = new TextView(getActivity().getApplicationContext());     tv.setLayoutParams(lp_tv);     tv.setText(_text);     tv.setTextColor(Color.parseColor("#000000"));               RelativeLayout.LayoutParams lp_img = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT,RelativeLayout.LayoutParams.WRAP_CONTENT);     lp_img.addRule(RelativeLayout.CENTER_VERTICAL,RelativeLayout.TRUE);     lp_img.addRule(RelativeLayout.ALIGN_PARENT_RIGHT,RelativeLayout.TRUE);     lp_img.setMargins(0, 0, Dp2Px(getActivity(),12), 0);     //lpiv.addRule(RelativeLayout.RIGHT_OF,iv.getId());          ImageView ivarrow = new ImageView(getActivity().getApplicationContext());     ivarrow.setLayoutParams(lp_img);     ivarrow.setImageDrawable(this.getResources().getDrawable(R.drawable.ios_arrow));          rl.addView(iv);     rl.addView(tv);     rl.addView(ivarrow);               LinearLayout  ll_line = new LinearLayout(getActivity().getApplicationContext());     LinearLayout.LayoutParams lp_line = new LinearLayout.LayoutParams(RelativeLayout.LayoutParams.MATCH_PARENT,1);     lp_line.setMargins(Dp2Px(getActivity(),46), 0, 0, 0);     ll_line.setLayoutParams(lp_line);     ll_line.setBackgroundColor(Color.parseColor("#cccccc"));               LinearLayout  ll_f = new LinearLayout(getActivity().getApplicationContext());     LinearLayout.LayoutParams lp_f = new LinearLayout.LayoutParams(RelativeLayout.LayoutParams.MATCH_PARENT,RelativeLayout.LayoutParams.WRAP_CONTENT);      ll_f.setLayoutParams(lp_f);          ll_f.setOrientation(LinearLayout.VERTICAL);     ll_f.setClickable(true);     Drawable ll_fd = this.getResources().getDrawable(R.drawable.myborder);     try{         ll_f.setBackgroundDrawable(ll_fd);//还必须要使用这个方法，虽然提示过期     }     catch(Exception e){         ll_f.setBackgroundColor(Color.parseColor("#ffffff"));     }     ll_f.addView(rl);     ll_f.addView(ll_line);        return ll_f;}

 public int Dp2Px(Context context, float dp) {     final float scale = context.getResources().getDisplayMetrics().density;     return (int) (dp * scale + 0.5f); }

后台设置高宽

  LayoutParams lp;                lp=mbtn.getLayoutParams();        lp.width=100;        lp.height=200;                mbtn.setLayoutParams(lp);

android:background="@drawable/layout_leftradiusborder"可以不用setBackgroundDrawable提示过期了,

可以使用 ll_f.setBackgroundResource(R.drawable.layout_leftradiusborder);

LinearLayout.LayoutParams.WRAP_CONTENT与

RelativeLayout.LayoutParams.WRAP_CONTENT感觉都是一样的效果

一：在后台添加表格

public void Eidt(List<TableItem> _tis,LinearLayout popView,Activity _mActivity){        TableLayout tl = (TableLayout)popView.findViewById(R.id.mytab);        tl.setStretchAllColumns(true);                        TableRow.LayoutParams trlpf = new TableRow.LayoutParams(TableRow.LayoutParams.WRAP_CONTENT,TableRow.LayoutParams.WRAP_CONTENT);//表格内添加的控件必须要用TableRow.LayoutParams不然调用tl.setStretchAllColumns会报错        trlpf.setMargins(0, 9, 0, 0);        trlpf.gravity = Gravity.RIGHT|Gravity.CENTER;//相当于layout_gravity                TableRow.LayoutParams trlpfe = new TableRow.LayoutParams(TableRow.LayoutParams.WRAP_CONTENT,TableRow.LayoutParams.WRAP_CONTENT);        trlpfe.setMargins(0, 9, 0, 0);                for(int i=1;i<_tis.size()-4;i++)//        {    TableItemNameValueShrink tt = (TableItemNameValueShrink)_tis.get(i);                TableRow tr = new TableRow(_mActivity);            tr.setLayoutParams(trlpf);                                    TextView tv = new TextView(_mActivity);            tv.setTextColor(Color.parseColor("#bbbbbb"));            tv.setLayoutParams(trlpf);            tv.setGravity(Gravity.RIGHT);//设置文字居中            tv.setText(tt.name+":");            tv.setEms(4);//小技巧文字不够可以设置此固定几个字符的长度                        EditText ed = new EditText(_mActivity);            ed.setLayoutParams(trlpfe);            ed.setText(tt.value);            ed.setTextColor(Color.parseColor("#666666"));            ed.setEms(9);                               tr.addView(tv);            tr.addView(ed);                                   tl.addView(tr);           }     }

二：常用样式设置

              TableRow.LayoutParams trlpf = new TableRow.LayoutParams(0,TableRow.LayoutParams.WRAP_CONTENT,7);trlpf.setMargins(2, 2, 0, 0); //left, top, right, bottomtrlpf.gravity = Gravity.RIGHT|Gravity.CENTER;//设置layoutmagin         TextView staName =  new TextView(WTRes.this); staName.setLayoutParams(trlpf);//添加布局 staName.setText(jsonObj.getString("staName")); staName.setTextColor(Color.parseColor("#000000")); staName.setBackgroundColor(Color.parseColor("#BCD553")); staName.setTextSize(14); staName.setGravity(Gravity.CENTER);//设置文字居中 tr.addView(staName);

package yu.activity;

import android.app.Activity;

import android.graphics.Color;

import android.os.Bundle;

import android.view.Gravity;

import android.view.ViewGroup.LayoutParams;

import android.widget.LinearLayout;

import android.widget.RelativeLayout;

import android.widget.TextView;

public class TextViewJava extends Activity {

private LinearLayout mLayout;

private TextView mTextView;

private RelativeLayout mLayout2;

private TextView mTextView2;

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

// 创建一个线性布局

mLayout = new LinearLayout(this);

// 接着创建一个TextView

mTextView = new TextView(this);

// 第一个参数为宽的设置，第二个参数为高的设置。

mTextView.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT,

LayoutParams.WRAP_CONTENT));

// 设置mTextView的文字

mTextView.setText("这是我的TextView");

// 设置字体大小

mTextView.setTextSize(20);

// 设置背景

mTextView.setBackgroundColor(Color.BLUE);

// 设置字体颜色

mTextView.setTextColor(Color.RED);

//设置居中

mTextView.setGravity(Gravity.CENTER);

mTextView.setPadding(1, 0, 0, 0);//left, top, right, bottom

// 将TextView添加到Linearlayout中去

mLayout.addView(mTextView);

// 创建一个线性布局

mLayout2 = new RelativeLayout(this);

// 接着创建一个TextView

mTextView2 = new TextView(this);

// 第一个参数为宽的设置，第二个参数为高的设置。

mTextView2.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT,

LayoutParams.WRAP_CONTENT));

// 设置mTextView的文字

mTextView2.setText("这是我的TextView");

// 设置字体大小

mTextView2.setTextSize(20);

// 设置背景

mTextView2.setBackgroundColor(Color.BLUE);

// 设置字体颜色

mTextView2.setTextColor(Color.RED);

// 设置居中

mTextView2.setGravity(Gravity.CENTER);

//相对位置

RelativeLayout.LayoutParams params = (RelativeLayout.LayoutParams)mTextView2.getLayoutParams();

params.setMargins(1, 0, 0, 0);// 通过自定义坐标来放置你的控件left, top, right, bottom

mTextView .setLayoutParams(params);//

// 将TextView添加到RelativeLayout中去

mLayout2.addView(mTextView2);

// 展现这个线性布局

setContentView(mLayout);

setContentView(mLayout2);

}

设置可见性 setVisibility():

http://blog.csdn.net/feng88724/article/details/6333809

三：动态添加布局文件

LinearLayout layout;@Overridepublic View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState) {// TODO Auto-generated method stublayout=new LinearLayout(getActivity());  ViewGroup.LayoutParams params = new ViewGroup.LayoutParams(                ViewGroup.LayoutParams.MATCH_PARENT,ViewGroup.LayoutParams.MATCH_PARENT);    layout.setOrientation(LinearLayout.VERTICAL);//显示方向    layout.setLayoutParams(params);            return layout;//return inflater.inflate(R.layout.mytable_trans, container, false);//return super.onCreateView(inflater, container, savedInstanceState);}

四：动态相对布局

TextView tv = new TextView(this);    tv.setText("高度:100cm");    tv.setTextColor(Color.BLUE);        RelativeLayout.LayoutParams tvparams = new RelativeLayout.LayoutParams(                ViewGroup.LayoutParams.WRAP_CONTENT,ViewGroup.LayoutParams.WRAP_CONTENT);    tvparams.setMargins(0, 0, 0,80);    tvparams.addRule(RelativeLayout.CENTER_HORIZONTAL);//水平居中    tvparams.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM);//在布局底部    tv.setLayoutParams(tvparams); //使layout更新        layout.addView(tv);

lp.addRule(RelativeLayout.ALIGN_PARENT_RIGHT, RelativeLayout.TRUE); lp.addRule(RelativeLayout.ALIGN_PARENT_TOP, RelativeLayout.TRUE);

// addRule方法将按钮布局添加到button1的右边
params.addRule(RelativeLayout.RIGHT_OF, R.id.button1);

lpiv.addRule(RelativeLayout.RIGHT_OF,iv.getId());

http://ask.csdn.net/questions/441

http://kukuqiu.iteye.com/blog/1018396

http://blog.csdn.net/h3c4lenovo/article/details/8256472

http://www.jb51.net/article/47566.htm

五：listview后台设置高度，注意dp像素的转化

定义一个函数将dp转换为像素

public int Dp2Px(Context context, float dp) {

final float scale = context.getResources().getDisplayMetrics().density;

return (int) (dp * scale + 0.5f);

}

定义函数动态控制listView的高度

public void setListViewHeightBasedOnChildren(ListView listView) {

//获取listview的适配器

ListAdapter listAdapter = listView.getAdapter();

//item的高度

int itemHeight = 46;

if (listAdapter == null) {

return;

}

int totalHeight = 0;

for (int i = 0; i < listAdapter.getCount(); i++) {

totalHeight += Dp2Px(getApplicationContext(),itemHeight)+listView.getDividerHeight();

}

ViewGroup.LayoutParams params = listView.getLayoutParams();

params.height = totalHeight;

listView.setLayoutParams(params);

}

http://blog.sina.com.cn/s/blog_4b20ae2e0101abvg.html

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