安卓‘进度条ProgressBar’中‘setIndeterminate()’方法的辨析

            在进度条的设置中,setIndeterminate()方法是用来设置进度条是否采用‘模糊模式’(这是我杜撰的名称,但意思没                       错,Indeterminate的意思就是‘不确定的,模糊的,不明确的’


当设置setIndeterminate(true)参数为,进度条采用不明确显示进度的‘模糊模式’,


当设置setIndeterminate(false)参数为假, 进度条不采用‘模糊模式’,而采用明确显示进度的‘明确模式’,


具体解析介绍,见下图:


安卓‘进度条ProgressBar’中‘setIndeterminate()’方法的辨析_第1张图片

安卓‘进度条ProgressBar’中‘setIndeterminate()’方法的辨析_第2张图片安卓‘进度条ProgressBar’中‘setIndeterminate()’方法的辨析_第3张图片



另附代码:

java主程序:

package com.example.threadtest;

import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.app.Activity;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ProgressBar;

public class MainActivity extends Activity {
	ProgressBar m_ProgressBar01;
	ProgressBar m_ProgressBar02;
	Button m_Button01;
	
	static final int msg1= 0x1;
	static final int msg2=0x2;
	protected int count = 0;
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		
		 m_ProgressBar01=(ProgressBar)findViewById(R.id.ProgressBar01);
		 m_ProgressBar02=(ProgressBar)findViewById(R.id.ProgressBar02);
		 m_Button01=(Button)findViewById(R.id.Button01);
		
		 m_ProgressBar01.setIndeterminate(true); 
		 m_ProgressBar02.setIndeterminate(false);

		
		//监听器
		m_Button01.setOnClickListener(new OnClickListener() {
			@Override
			public void onClick(View v) {
				//点击后设置为可见
				m_ProgressBar01.setVisibility(View.VISIBLE);
				m_ProgressBar02.setVisibility(View.VISIBLE); 
				m_ProgressBar01.setMax(100);
				m_ProgressBar02.setMax(100);
				//给连个进度条设置初始进度为0
				m_ProgressBar01.setProgress(0); 
				m_ProgressBar02.setProgress(0);
				
				//以线程来控制进度曾增加
					new Thread(new Runnable(){
						public void run(){
							
										
							for(int i=0;i<=10;i++){
								
							     count=(i+1)*10;//每次加10进度
							     try {
										Thread.sleep(1000);
									} catch (InterruptedException e) {
										// TODO Auto-generated catch block
										e.printStackTrace();
									}
							    							     
							     if(i<10){
							          Message msg=new Message();
						            	msg.what =msg1;
							            handler.sendMessage(msg);
							}
							     else{
							    	 Message msg=new Message();
						            	msg.what =msg2;
							            handler.sendMessage(msg);
							     }
							 
						} 						
					}
				}).start();
				
			}});
	}
	
	Handler handler=new Handler(){
		public void handleMessage(Message msg){
			
		switch(msg.what){
			
			case msg1:
				m_ProgressBar01.setProgress(count);
				m_ProgressBar02.setProgress(count);
				break;
			case msg2:
				m_ProgressBar01.setProgress(count);				
				m_ProgressBar02.setProgress(count);
				m_ProgressBar01.setVisibility(View.GONE);
				m_ProgressBar02.setVisibility(View.GONE);
				//Thread.interrupted();
				break;
			}
		}
	};
	
	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		// Inflate the menu; this adds items to the action bar if it is present.
		getMenuInflater().inflate(R.menu.main, menu);
		return true;
	}

}

布局文件:




  
  
  
  
   


  
  

有错请指




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