摘要：
1.权限View Code <uses-permission android:name="android.permission.INTERNET"/> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>2.codeView Code public void downloadHttp(String downLoadUrl) { String urlStr = downLoadUrl; String path = "file& 阅读全文
摘要：
1.权限View Code <uses-permission android:name="android.permission.INTERNET"/> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>2.方法View Code public void begainDownload(String downLoadUrl) { DownloadManager dm = (DownloadManager)getSystemService 阅读全文
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View Code Intent intent = new Intent(Intent.ACTION_MAIN, null); intent.addCategory(Intent.CATEGORY_LAUNCHER); List<ResolveInfo> list = VideoActivity.this.getPackageManager().queryIntentActivities(intent, PackageManager.GET_ACTIVITIES); for (int i = 0; i < list.size(); i++) { if (list... 阅读全文
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画一个圆出来，每隔0.1秒，圆向10移动10个像素。但可以清楚展示利用Handler更新UI的流程。1.首先创建简单的View,代码如下：View Code package com.ray.handler;import android.content.Context;import android.graphics.Canvas;import android.graphics.Color;import android.graphics.Paint;import android.graphics.Point;import android.graphics.drawable.Drawable;imp 阅读全文
摘要：
1.定义接口View Code /** * @author zhou * */public interface CallBack { public void tellSomeOne(String str);}2.定义工具类View Code public class Tools{ public String aaa=""; public void doSomeSth() { aaa = "asdasda"; } public void CallSomeOne(CallBack call) { aaa="a1111111111111... 阅读全文