//from Allshare package com.zxt.dlna.util; import android.content.Context; import android.media.MediaPlayer; import android.net.ConnectivityManager; import android.net.NetworkInfo; import android.os.Environment; import android.util.Log; import android.view.Display; import android.view.WindowManager; import android.widget.Toast; public class CommonUtil { private static final String TAG = "CommonUtil"; public static boolean checkNetState(Context context) { boolean netstate = false; ConnectivityManager connectivity = (ConnectivityManager) context .getSystemService(Context.CONNECTIVITY_SERVICE); if (connectivity != null) { NetworkInfo[] info = connectivity.getAllNetworkInfo(); if (info != null) { for (int i = 0; i < info.length; i++) { if (info[i].getState() == NetworkInfo.State.CONNECTED) { netstate = true; break; } } } } return netstate; } public static void showToask(Context context, String tip) { Toast.makeText(context, tip, Toast.LENGTH_SHORT).show(); } public static boolean hasSDCard() { String status = Environment.getExternalStorageState(); if (!status.equals(Environment.MEDIA_MOUNTED)) { // log.e("No sdcard"); return false; } return true; } public static String getRootFilePath() { if (hasSDCard()) { return Environment.getExternalStorageDirectory().getAbsolutePath() + "/";// filePath:/sdcard/ } else { return Environment.getDataDirectory().getAbsolutePath() + "/data/"; // filePath: // /data/data/ } } public static int getScreenWidth(Context context) { WindowManager manager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE); Display display = manager.getDefaultDisplay(); return display.getWidth(); } public static int getScreenHeight(Context context) { WindowManager manager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE); Display display = manager.getDefaultDisplay(); return display.getHeight(); } public static ViewSize getFitSize(Context context, MediaPlayer mediaPlayer) { int videoWidth = mediaPlayer.getVideoWidth(); int videoHeight = mediaPlayer.getVideoHeight(); double fit1 = videoWidth * 1.0 / videoHeight; int width2 = getScreenWidth(context); int height2 = getScreenHeight(context); double fit2 = width2 * 1.0 / height2; Log.e(TAG, "videoWidth = " + videoWidth + ", videoHeight = " + videoHeight + ",fit1 = " + fit1); Log.e(TAG, "width2 = " + width2 + ", height2 = " + height2 + ",fit2 = " + fit2); double fit = 1; if (fit1 > fit2) { fit = width2 * 1.0 / videoWidth; } else { fit = height2 * 1.0 / videoHeight; } Log.d(TAG, "fit = " + fit); ViewSize viewSize = new ViewSize(); viewSize.width = (int) (fit * videoWidth); viewSize.height = (int) (fit * videoHeight); return viewSize; } public static class ViewSize { public int width = 0; public int height = 0; } }