anroid Bar 进度条示例

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seekbar.xml:

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    android:orientation="vertical" >    <TextView android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:text="这是一个滑块的案例"/>        <SeekBar android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:id="@+id/seekBar"        android:max="100"/>        <TextView android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:text="这是一个水平进度条的案例"/>        <ProgressBar android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:id="@+id/firstBar"        android:max="100"        style="?android:attr/progressBarStyleHorizontal"/>        <TextView android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:text="这是一个循环进度条的案例"/>        <ProgressBar android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:id="@+id/secondBar"        android:max="100"        android:progress="10"        style="?android:attr/progressBarStyle"/>        <Button android:layout_width="100px"        android:layout_height="wrap_content"        android:id="@+id/bt_Begn"        android:text="开始"/>    </LinearLayout>

ProgressBarActivity.java文件：

package com.example.baseexample;import android.app.Activity;import android.os.Bundle;import android.view.View;import android.widget.Button;import android.widget.ProgressBar;import android.widget.SeekBar;public class ProgressBarActivity extends Activity {private SeekBar seekBar;private ProgressBar firstBar;private ProgressBar secondBar;private Button bt_Begin;private int i=0;public void onCreate(Bundle savedInstanceState){super.onCreate(savedInstanceState);setContentView(R.layout.seekbar);seekBar= (SeekBar)findViewById(R.id.seekBar);firstBar = (ProgressBar)findViewById(R.id.firstBar);secondBar = (ProgressBar)findViewById(R.id.secondBar);bt_Begin = (Button)findViewById(R.id.bt_Begn);bt_Begin.setOnClickListener(new Button.OnClickListener(){@Overridepublic void onClick(View v) {if(i==0){firstBar.setVisibility(View.VISIBLE);secondBar.setVisibility(View.VISIBLE);}else if(i<=100){firstBar.setProgress(i);firstBar.setSecondaryProgress(i+10);secondBar.setProgress(i);}i=i+10;seekBar.setProgress(i);}});}}

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