package xxxxx.utils; import android.app.Activity;import android.app.WallpaperManager;import android.graphics.Bitmap;import android.graphics.BitmapFactory;import android.os.Environment;import java.io.File;import java.io.FileOutputStream;import java.io.IOException;import java.io.InputStream;import java.net.HttpURLConnection;import java.net.MalformedURLException;import java.net.URL; /** * 設置壁紙 * 1、下載網絡圖片，使用HttpURLConnection * 2、設置壁紙 * Created by zst on 2018/10/15. */ public class HttpURLConnectionUtil {   /**   * 設置系統壁紙   * 1、把網絡圖片設置系統壁紙   * 2、因為谷歌不維護其他框架了，所以使用HttpURLConnection來下載和配置   *   * @param activity   * @param imgUrl   */  public static void setWallpaper(final Activity activity, final String imgUrl) {    //Log.e("壁紙", "鏈接：" + imgUrl);     new Thread(new Runnable() {      @Override      public void run() {        try {          URL httpUrl = new URL(imgUrl);//獲取傳入進來的url地址 并捕獲解析過程產生的異常          //使用是Http訪問 所以用HttpURLConnection 同理如果使用的是https 則用HttpsURLConnection          try {            HttpURLConnection conn = (HttpURLConnection) httpUrl.openConnection();//通過httpUrl開啟一個HttpURLConnection對象            conn.setReadTimeout(5000);//設置顯示超市時間為5秒            conn.setRequestMethod("GET");//設置訪問方式            conn.setDoInput(true);//設置可以獲取輸入流             InputStream in = conn.getInputStream();//獲取輸入流             //創建一個寫入ID卡的文件對象            FileOutputStream out = null;            File download = null;            String filename = String.valueOf(System.currentTimeMillis());//獲取系統時間            //判斷文件是否存在  Environment.MEDIA_MOUNTEDID卡是否掛載 如果是則創建文件對象            if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {              File parent = Environment.getExternalStorageDirectory();//獲取ID卡目錄              download = new File(parent, filename);//在父類的目錄下創建一個以當前下載的系統時間為文件名的文件               out = new FileOutputStream(download);            }             byte[] b = new byte[2 * 1024];            int len;            if (out != null) {//id卡如果存在 則寫入              while ((len = in.read(b)) != -1) {                out.write(b, 0, len);              }            }             //讀取該文件中的內容            final Bitmap bitmap = BitmapFactory.decodeFile(download.getAbsolutePath());            activity.runOnUiThread(new Runnable() {              @Override              public void run() {                //設置圖片為壁紙                //Bitmap bitmap = BitmapFactory.decodeResource(this.getResources(),R.drawable.bg_user_top);//設置項目res中的圖片                WallpaperManager manager = WallpaperManager.getInstance(activity);                try {                  manager.setBitmap(bitmap);                  UiUtil.showToastLong(activity, "壁紙設置成功，請在桌面上查看");                } catch (IOException e) {                  UiUtil.showToast(activity, "壁紙設置成失敗");                  e.printStackTrace();                }              }            });           } catch (IOException e) {            e.printStackTrace();          }         } catch (MalformedURLException e) {          e.printStackTrace();        }       }    }).start();  } }