java android 布局_android如下布局怎么用java动态生成

展开全部

代码如下：

package com.app;

import com.app.form.AutoCompleteActivity;

import com.app.form.ProgressActivity;

import com.app.form.RadioAndCheckboxActivity;

import com.app.form.RatingBarActivity;

import com.app.form.SeekBarActivity;

import com.app.form.SpinnerActivity;

import com.app.form.ToggleButtonActivity;

import com.app.list.ExpandableList1;

import android.app.Activity;

import android.content.Intent;

import android.os.Bundle;

import android.view.View;

import android.view.View.OnClickListener;

import android.view.ViewGroup.LayoutParams;

import android.widget.LinearLayout;

import android.widget.TextView;

/**

* 范例：五种布局方式的范例

* 1.该文件中没有用到XML形式的静态布局，而是动态布局

* @author Administrator

*/

public class MainActivity extends Activity implements OnClickListener {

//实例化一个32313133353236313431303231363533e59b9ee7ad943133333533653110个TextView的数组

TextView tvArray[] = new TextView[20];

//实例化一个线性布局的参数

LinearLayout.LayoutParams lp1 = new LinearLayout.LayoutParams(

LayoutParams. FILL_PARENT, LayoutParams.FILL_PARENT);

LinearLayout.LayoutParams lp2 = new LinearLayout.LayoutParams(

LayoutParams. FILL_PARENT, LayoutParams.WRAP_CONTENT);

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

//实例化线性布局并设置垂直方向

LinearLayout lin1 = new LinearLayout(this);

lin1.setOrientation(LinearLayout. VERTICAL);

//创建n个TextView并设置ID 监听器等，最后添加到线性布局中

for (int i = 0; i < 20; i++) {

tvArray[i] = new TextView(this);

tvArray[i].setId(i);

tvArray[i].setOnClickListener(this);

lin1.addView( tvArray[i], lp2 );

}

//设置各TextView的文本

tvArray[0].setText("表单控件-单选Radio和复选Checkbox" );

tvArray[1].setText("表单控件-下拉菜单Spinner" );

tvArray[2].setText("表单控件-自动完成AutoComplete" );

tvArray[3].setText("表单控件-进度条ProgressBar" );

tvArray[4].setText("表单控件-滑动条SeekBar" );

tvArray[5].setText("表单控件-评分RatingBar" );

tvArray[6].setText("表单控件-ToggleButton" );

tvArray[7].setText("复合控件-列表ListView" );

tvArray[8].setText("复合控件-折叠式列表ExpandableList" );

tvArray[9].setText("复合控件-网格视图GridView" );

tvArray[10].setText("复合控件-滚动视图ScrollView" );

setContentView(lin1); //此处从R.layout.XXX改成了某个View的实例

}

@Override

public void onClick(View v) {

Intent intent = new Intent();

if(v.getId()==0) {

intent.setClass(MainActivity. this, RadioAndCheckboxActivity.class );

} else if (v.getId()==1) {

intent.setClass(MainActivity. this, SpinnerActivity.class );

} else if (v.getId()==2) {

intent.setClass(MainActivity. this, AutoCompleteActivity.class );

} else if (v.getId()==3) {

intent.setClass(MainActivity. this, ProgressActivity.class );

} else if (v.getId()==4) {

intent.setClass(MainActivity. this, SeekBarActivity.class );

} else if (v.getId()==5) {

intent.setClass(MainActivity. this, RatingBarActivity.class );

} else if (v.getId()==6) {

intent.setClass(MainActivity. this, ToggleButtonActivity.class );

} else if (v.getId()==7) {

intent.setClass(MainActivity. this, ListsActivity.class );

} else if (v.getId()==8) {

intent.setClass(MainActivity. this, ExpandableList1.class );

} else if (v.getId()==9) {

intent.setClass(MainActivity. this, Grid.class);

} else if (v.getId()==10) {

intent.setClass(MainActivity. this, ScrollViewActivity.class );

}

startActivity(intent);

}

}

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