ubuntu升级到11.04的空档时间写个小程序练练手。
先看看程序UI设计：
布局文件main.xml的代码：
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="140dip">
<TextView
android:gravity="center"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:text="倒计时"
android:textSize="90dip"/>
</LinearLayout>
<LinearLayout
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:gravity="center"
android:padding="10dip">
<Button
android:id="@+id/down"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="-"
android:textSize="40dip" />
<TextView
android:id="@+id/time"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="0:00"
android:textSize="40dip"
android:padding="10dip" />
<Button
android:id="@+id/up"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="+"
android:textSize="40dip" />
</LinearLayout>
<Button
android:id="@+id/tart"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:text="开始"/>
</LinearLayout>
程序主代码：
package android.daojishi;
import android.app.Activity;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.os.CountDownTimer;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
public class BrewClockActivity extends Activity implements OnClickListener {
protected Button AddTime;
protected Button DecreaseTime;
protected Button start;
protected TextView Time;
MediaPlayer mMediaPlayer;
protected int brewTime = 3;
protected CountDownTimer brewCountDownTimer;
protected int brewCount = 0;
protected boolean isBrewing = false;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
initSounds();
setContentView(R.layout.main);
// Connect interface elements to properties
AddTime = (Button) findViewById(R.id.up);
DecreaseTime = (Button) findViewById(R.id.down);
start = (Button) findViewById(R.id.tart);
Time = (TextView) findViewById(R.id.time);
// Setup ClickListeners
AddTime.setOnClickListener(this);
DecreaseTime.setOnClickListener(this);
start.setOnClickListener(this);
// Set the initial brew values
setBrewTime(3);
}
private void initSounds() {
// TODO Auto-generated method stub
mMediaPlayer=MediaPlayer.create(this, R.raw.haliluya);
}
public void setBrewTime(int minutes) {
if(isBrewing)
return;
brewTime = minutes;
if(brewTime < 1)
brewTime = 1;
Time.setText(String.valueOf(brewTime) + "m");
}
public void startBrew() {
brewCountDownTimer = new CountDownTimer(brewTime * 60 * 1000, 1000) {
@Override
public void onTick(long millisUntilFinished) {
Time.setText(String.valueOf(millisUntilFinished / 1000) + "s");
}
@Override
public void onFinish() {
isBrewing = false;
mMediaPlayer.start();
Time.setText("哈利路亚");
start.setText("开始");
}
};
brewCountDownTimer.start();
start.setText("停止");
isBrewing = true;
}
public void stopBrew() {
if(brewCountDownTimer != null)
brewCountDownTimer.cancel();
isBrewing = false;
start.setText("开始");
}
public void onClick(View v) {
if(v == AddTime)
setBrewTime(brewTime + 1);
else if(v == DecreaseTime)
setBrewTime(brewTime -1);
else if(v == start) {
if(isBrewing)
stopBrew();
else
startBrew();
}
}
}
懒得写注解，部分代码来自coolshell，有兴趣的童鞋可以去找找上面那个泡茶程序。
最后允许显摆一下我的ubuntu11.04
基于unity的ubuntu怕是一统桌面PC市场指日可待了！！！