import android.app.Activity;
import android.os.Bundle;
import android.widget.*;
public class ProgressBarTest extends Activity {
private LinearLayout mainLayout;//界面主容器
private TextView tv1; //文本1
private ProgressBar bar1; //圆形进度条
private TextView tv2; //文本2
private ProgressBar bar2; //水平条状进度条,确定进度
private TextView tv3; //文本3
private ProgressBar bar3; //水平条状进图条,不确定进度
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
/*mainLayout主容器初始化*/
mainLayout=new LinearLayout(this);
mainLayout.setOrientation(LinearLayout.VERTICAL); //垂直分布
/*tv1文本1初始化*/
tv1=new TextView(this);
tv1.setText("圆形进度条");
mainLayout.addView(tv1);//添加文本1
/*bar1圆形进度条初始化*/
bar1=new ProgressBar(this,null,android.R.attr.progressBarStyleLarge);//大圆
//bar1=new ProgressBar(this,null,android.R.attr.progressBarStyleSmall);//小圆
//bar1=new ProgressBar(this,null,android.R.attr.progressBarStyleSmallTitle);//小圆,标题条的样式
/*
* 下面可以通过改变LayoutParams中的width参数来设置圆形进度条的直径
* height如果小于width,下圆环会被截掉,无法显示全圆
*/
LinearLayout.LayoutParams lp1=new LinearLayout.LayoutParams(-2,-2);
bar1.setLayoutParams(lp1);
mainLayout.addView(bar1);//添加进度条1
/*tv2文本2初始化*/
tv2=new TextView(this);
tv2.setText("水平进度条");
mainLayout.addView(tv2);//添加文本2
/*bar2条形进度条初始化*/
bar2=new ProgressBar(this,null,android.R.attr.progressBarStyleHorizontal);//水平条形
LinearLayout.LayoutParams lp2=new LinearLayout.LayoutParams(200, -2);//长度200,高度默认
bar2.setLayoutParams(lp2);
bar2.setMax(100);
bar2.setProgress(50);
bar2.setSecondaryProgress(75);
mainLayout.addView(bar2);//添加进度条2
/*tv3文本3初始化*/
tv3=new TextView(this);
tv3.setText("不确定进度的水平进度条");
mainLayout.addView(tv3);//添加文本3
/*bar3条形进度条初始化*/
bar3=new ProgressBar(this,null,android.R.attr.progressBarStyleHorizontal);
LinearLayout.LayoutParams lp3=new LinearLayout.LayoutParams(300,20);//长度为300,高度20
bar3.setLayoutParams(lp3);
/*
* 设定进度条为不确定进度,默认是可确定进度的进度条,进度初值为0
* 圆形进度条固定为不确定进度的
*/
bar3.setIndeterminate(true);
mainLayout.addView(bar3);//添加进度条3
setContentView(mainLayout);//显示主容器
}
}