android简单demo学习系例之排版(TableLayout)[xml-based]
在eclipse下利用android开发插件,来写基于xml-based的图形界面很简单也很方便.http://p.blog.csdn.net/images/p_blog_csdn_net/SCHOLAR_II/EntryImages/20090206/bb.jpg
在outline或效果界面中选中所编辑的节点(View),接着在下边 的Property窗口下其对应的属性列表中填写自定义的属性值.
结果出来的Layout文件如下(可以查看如下文件来填写节点属性值-在上面的步骤)
<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" > <TableLayout android:id="@+id/sTableLayout" android:layout_width="wrap_content" android:layout_height="wrap_content"> <TableRow > <ImageView android:background="@drawable/bg1"/> <EditText/> </TableRow> <TableRow> <ImageView android:background="@drawable/bg2"/> <EditText/> </TableRow> </TableLayout> <Button android:id="@+id/exitButton" android:text="退出" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_below="@+id/sTableLayout" android:layout_marginTop="20sp"/></RelativeLayout>
android简单demo学习系例之排版(TableLayout)
对应的UI-TREE
http://p.blog.csdn.net/images/p_blog_csdn_net/SCHOLAR_II/EntryImages/20090206/1.jpg
相对布局的使用只有注意到控件ID就不难理解与编码
代码:
package com.shcolar.luo;import android.app.Activity;import android.os.Bundle;import android.view.View;import android.view.ViewGroup;import android.view.View.OnClickListener;import android.widget.Button;import android.widget.EditText;import android.widget.ImageView;import android.widget.RelativeLayout;import android.widget.TableLayout;import android.widget.TableRow;/** * 简单的TableLayoutDemo 基于code-based * @author shcolar.luo * */public class TableLayoutDemo extends Activity implements OnClickListener{private final int WC = ViewGroup.LayoutParams.WRAP_CONTENT; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); //ViewGroup1-根节点 包含ViewGroup2-TableLayout 与 View-Button RelativeLayout sRLayout = new RelativeLayout(this); setContentView(sRLayout); //ViewGroup2 TableLayout sTLayout = new TableLayout(this); //设置ID,相对布局用到 sTLayout.setId(1); sRLayout.addView(sTLayout, new TableLayout.LayoutParams(WC, WC)); //ViewGroup2的第一行 TableRow sRow1 = new TableRow(this); sTLayout.addView(sRow1, new TableLayout.LayoutParams(WC, WC)); ImageView sImageView1 = new ImageView(this); sImageView1.setImageDrawable(this.getResources().getDrawable(R.drawable.bg1)); EditText sEditText1 = new EditText(this); sRow1.addView(sImageView1); sRow1.addView(sEditText1); //ViewGroup2的第二行 TableRow sRow2 = new TableRow(this); sTLayout.addView(sRow2, new TableLayout.LayoutParams(WC, WC)); ImageView sImageView2 = new ImageView(this); sImageView2.setImageDrawable(this.getResources().getDrawable(R.drawable.bg2)); EditText sEditText2 = new EditText(this); sRow2.addView(sImageView2); sRow2.addView(sEditText2); Button sExitButton = new Button(this); sExitButton.setText("退出"); sExitButton.setOnClickListener(this); RelativeLayout.LayoutParams sLayoutParams = new RelativeLayout.LayoutParams(WC, WC); sLayoutParams.addRule(RelativeLayout.BELOW, 1); sLayoutParams.topMargin = 20; //sExitButton相对于ViewGroup2排版 sRLayout.addView(sExitButton, sLayoutParams); }/** * 点击事件处理 */public void onClick(View v) {this.finish();}}
页:
[1]