Main.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" >
<ProgressBar
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:max="100"
android:visibility="invisible"
android:id="@+id/progress1"
/>
<ProgressBar
android:layout_width="200dp"
android:layout_height="wrap_content"
style="@android:style/Widget.ProgressBar.Horizontal"
android:max="100"
android:id="@+id/progress2"
android:visibility="invisible"
/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="點擊"
android:id="@+id/button"
/>
</LinearLayout>
ProgressBarActivity.java
package cn.class3g.progressbar;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ProgressBar;
public class ProgressBarActivity extends Activity {
private ProgressBar progress1 =null;
private ProgressBar progress2=null;
private Button button =null;
private int i=0;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
progress1 =(ProgressBar) this.findViewById(R.id.progress1);
progress2 = (ProgressBar) this.findViewById(R.id.progress2);
button= (Button) this.findViewById(R.id.button);
button.setOnClickListener(new progress());
}
class progress implements OnClickListener{
public void onClick(View v) {
if(i==0){
progress1.setVisibility(View.VISIBLE);
progress2.setVisibility(View.VISIBLE);
}else if(i<progress2.getMax()){
progress2.setProgress(i);
progress2.setSecondaryProgress(i+10);
}
i=i+10;
}
}
}
