Android超简单的进度条源码

相信大家都知道，打开程序的时候，需要通过进度条或者图片显示。这个时候很方便给应用程序优质的效果。下面我们来看看是如何实现进度条的代码，原理非常简单。
如图：

                    packagecom.smart;
            
            importandroid.app.Activity;
            importandroid.os.Bundle;
            importandroid.os.Handler;
            importandroid.widget.ProgressBar;
            
            publicclassMainextendsActivity{
            
            privateProgressBarpro1;
            
            privateProgressBarpro2;
            privateHandlerhandler=newHandler();
            privateintcount1=0;
            privateintcount2=0;//进度条的从0开始
            
            privateRunnabledoUpdateProgressBar1=newRunnable(){
            
            @Override
            publicvoidrun(){
            for(count1=0;count1<pro1.getMax();count1++){
            handler.post(newRunnable(){
            //增加进度
            @Override
            publicvoidrun(){
            pro1.setProgress(count1);
            }
            });
            }
            }
            };
            
            
            privateRunnabledoUpdateProgressBar2=newRunnable(){
            
            @Override
            publicvoidrun(){
            for(count2=0;count2<pro2.getMax();count2++){
            handler.post(newRunnable(){
            
            @Override
            publicvoidrun(){
            pro2.setProgress(count2);
            }
            });
            }
            }
            };
            
            @Override
            publicvoidonCreate(BundlesavedInstanceState){
            super.onCreate(savedInstanceState);
            setContentView(R.layout.main);
            pro1=(ProgressBar)findViewById(R.id.progressBar1);//得到组件
            pro2=(ProgressBar)findViewById(R.id.progressBar2);
            Threadthread1=newThread(doUpdateProgressBar1,"thread1");
            thread1.start();//开始
            Threadthread2=newThread(doUpdateProgressBar2,"thread2");
            thread2.start();
            
            }
            }
            
            <?xmlversion="1.0"encoding="utf-8"?>
            <LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android"
            android:orientation="vertical"
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            >
            <ProgressBar
            android:id="@+id/progressBar1"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            style="?android:attr/progressBarStyleHorizontal"
            android:max="20000"
            />
            <ProgressBar
            android:id="@+id/progressBar2"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            style="?android:attr/progressBarStyleHorizontal"
            android:max="20000"
            android:layout_marginTop="10dp"
            />
            
            
            
            
            
            </LinearLayout>

更多相关文章

随机推荐