android中的ProgressBar的使用方法

首先还是ProgressBarTest.java主activity的内容：

package txlong.ProgressBar;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ProgressBar;

public class ProgressBarTest extends Activity {
	private ProgressBar psb1, psb2;
	private Button btn;
	private int flag;

	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);

		psb1 = (ProgressBar) findViewById(R.id.psb1);
		psb2 = (ProgressBar) findViewById(R.id.psb2);
		btn = (Button) findViewById(R.id.btn);
		psb1.setMax(100);

		btn.setOnClickListener(new View.OnClickListener() {

			@Override
			public void onClick(View v) {
				if (flag == 0) {
					psb1.setProgress(0);
					psb1.setSecondaryProgress(0);
					psb1.setVisibility(View.VISIBLE);
					psb2.setVisibility(View.VISIBLE);
				} else if (flag < psb1.getMax()) {
					psb1.setProgress(flag);
					psb1.setSecondaryProgress(flag + 10);
				} else {
					psb1.setVisibility(View.GONE);
					psb2.setVisibility(View.GONE);
					flag = -10;
				}
				flag += 10;
			}

		});
	}
}

 然后是main.xml文件

<?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"
    >
	<TextView  
	    android:layout_width="fill_parent" 
	    android:layout_height="wrap_content" 
	    android:text="@string/hello"/>
	    
    <ProgressBar
    	android:id="@+id/psb1"
    	style="?android:attr/progressBarStyleHorizontal"
    	android:layout_width="fill_parent"
    	android:layout_height="wrap_content"
    	android:visibility="gone"/>
	    
    <ProgressBar
    	android:id="@+id/psb2"
    	style="?android:attr/progressBarStyle"
    	android:layout_width="wrap_content"
    	android:layout_height="wrap_content"
    	android:visibility="gone"/>
    	
	<Button
		android:id="@+id/btn"
		android:layout_width="wrap_content"
		android:layout_height="wrap_content"
		android:text="click"/>
		 
</LinearLayout>

 

评论

1 楼 Carchermind 2012-10-12  

xiexie :