通用工具类

CommonUtils.java

public class CommonUtils {

	private static NetworkInfo getNetworkInfo(Context context) {
		ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
		return cm.getActiveNetWorkInfo();
	}
	
	// 是否存在网络
	public static boolean isNetworkAvailable(Context context) {
		NetworkInfo info = getNetworkInfo(context);
		if (info != null) {
			return info.isAvailable();
		}
		return false;
	}	

	// 是否为WiFi
	public static boolean isWifi(Context context) {
		NetworkInfo info = getNetworkInfo(context);
		if (info != null) {
			if (info.getType() == ConnectivityManager.Type_WIFI)
				return true;
		}
		return false;
	}

	// 是否为手机网络
	public static boolean isMobile(Context context) {
		NetworkInfo info = getNetworkInfo(context);
		if (info != null) {
			if (info.getType() == ConnectivityManager.Type_MOBILE) {
				return true;
			}
			return false;
		}
	}

	// 改变wifi状态
	public static void changeWIFIStatus(Context context,boolean status) {
		((WifiManager) context.getSystemService(Context.WIFI_SERVICE)).setWifiEnabled(status);
	}

	// 获取屏幕宽高
	public static int[] getScreenSize() {
		int[] screens;
		DisplayMetrics dm = new DisplayMetrics();
		dm = MyApplication.getInstance().getResources().getDisplayMetrics();
		screens = new int[] { dm.widthPixels, dm.heightPixels };
		return screens;
	}

	// 加载字体
	public static Typeface getTypeface(Context context, String assetsPah) {
		Typeface typeface = Typeface.createFromAsset(context.getAssets(),
				assetsPah);
		return typeface;
	}

	// 获取Bitmap的宽和高
	public static float[] getBitmapConfiguration(Bitmap bitmap,
			ImageView imageView, float screenRadio) {
		int screenWidth = getScreenSize()[0];
		float rawWidth = 0;
		float rawHeight = 0;
		float width = 0;
		float height = 0;
		if (bitmap == null) {
			// rawWidth = sourceWidth;
			// rawHeight = sourceHeigth;
			width = (float) (screenWidth / screenRadio);
			height = (float) width;
			imageView.setScaleType(ScaleType.FIT_XY);
		} else {
			rawWidth = bitmap.getWidth();
			rawHeight = bitmap.getHeight();
			if (rawHeight > 10 * rawWidth) {
				imageView.setScaleType(ScaleType.CENTER);
			} else {
				imageView.setScaleType(ScaleType.FIT_XY);
			}
			float radio = rawHeight / rawWidth;

			width = (float) (screenWidth / screenRadio);
			height = (float) (radio * width);
		}
		return new float[] { width, height };
	}

	// 获取App版本号
	public static String getVersionName(Context context) {
		PackageManager pm = context.getPackageManager();
		try {
			PackageInfo info = pm.getPackageInfo(context.getPackageName(), 0);
			return info.versionName;
		} catch (NameNotFoundException e) {
			e.printStackTrace();
		}
		return null;
	}

	// 通过浏览器打开页面
	public static void openBrowser(Context context, String urlText) {
		Intent intent = new Intent();
		intent.setAction("android.intent.action.VIEW");
		Uri url = Uri.parse(urlText);
		intent.setData(url);
		context.startActivity(intent);
	}

	// 切换全屏状态 isFull 设置为true则全屏，否则非全屏
	public static void toggleFullScreen(Activity activity, boolean isFull) {
		hideTitleBar(activity);
		Window window = activity.getWindow();
		WindowManager.LayoutParams params = window.getAttributes();
		if (isFull) {
			params.flags |= WindowManager.LayoutParams.FLAG_FULLSCREEN;
			window.setAttributes(params);
			window.addFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);
		} else {
			params.flags &= (~WindowManager.LayoutParams.FLAG_FULLSCREEN);
			window.setAttributes(params);
			window.clearFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);
		}
	}

	// 设置为全屏
	public static void setFullScreen(Activity activity) {
		toggleFullScreen(activity, true);
	}

	// 隐藏系统标题栏
	public static void hideTitleBar(Activity activity) {
		activity.requestWindowFeature(Window.FEATURE_NO_TITLE);
	}

	// 获取系统状态栏高度
	public static int getStatusBarHeight(Activity activity) {
		try {
			Class<?> clazz = Class.forName("com.android.internal.R$dimen");
			Object object = clazz.newInstance();
			Field field = clazz.getField("status_bar_height");
			int dpHeight = Integer.parseInt(field.get(object).toString());
			return activity.getResources().getDimensionPixelSize(dpHeight);
		} catch (Exception e1) {
			e1.printStackTrace();
			return 0;
		}
	}

	// 强制设置Actiity的显示方向为垂直方向。
	public static void setScreenVertical(Activity activity) {
		activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
	}

	// 强制设置Activity的显示方向为横向。
	public static void setScreenHorizontal(Activity activity) {
		activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
	}

	// 隐藏软件输入法
	public static void hideSoftInput(Activity activity) {
		activity.getWindow().setSoftInputMode(
				WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN);
	}

	// 关闭已经显示的输入法窗口。 focusingView 输入法所在焦点的View
	public static void closeSoftInput(Context context, View focusingView) {
		InputMethodManager imm = (InputMethodManager) context
				.getSystemService(Context.INPUT_METHOD_SERVICE);
		imm.hideSoftInputFromWindow(focusingView.getWindowToken(),
				InputMethodManager.RESULT_UNCHANGED_SHOWN);
	}

	// 使UI适配输入法
	public static void adjustSoftInput(Activity activity) {
		activity.getWindow().setSoftInputMode(
				WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE);
	}
	// 快捷方式是否存在
	public static boolean ifAddShortCut(Context context, String[] appName) {
		boolean isInstallShortCut = false;
		ContentResolver cr = context.getContentResolver();
		String authority = "com.android.launcher2.settings";
		Uri uri = Uri
				.parse("content://" + authority + "/favorites?notify=true");
		Cursor c = cr.query(uri, new String[] { "title", "iconResource" },
				"title=?", appName, null);
		if (null != c && c.getCount() > 0) {
			isInstallShortCut = true;
		}
		return isInstallShortCut;
	}
	// Clazz指定启动Activity
	public static void addShortCut(Context context, String appName, Class clazz) {
		Intent shortcut = new Intent(
				"com.android.launcher.action.INSTALL_SHORTCUT");
		// 设置属性
		shortcut.putExtra(Intent.EXTRA_SHORTCUT_NAME, appName);
		ShortcutIconResource resource = Intent.ShortcutIconResource
				.fromContext(context, R.drawable.ic_launcher);
		shortcut.putExtra(Intent.EXTRA_SHORTCUT_ICON_RESOURCE, resource);
		// 是否允许重复创建
		shortcut.putExtra("duplicate", false);
		Intent intent = new Intent(Intent.ACTION_MAIN);// 标识Activity为一个程序的开始
		intent.setFlags(Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
		intent.addFlags(Intent.FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY);
		intent.addCategory(Intent.CATEGORY_LAUNCHER);
		intent.setClass(context, clazz);
		shortcut.putExtra(Intent.EXTRA_SHORTCUT_INTENT, intent);
		context.sendBroadcast(shortcut);
	}
	// 得到view高度
	public static int getViewHeight(int w, int bmw, int bmh) {
        return w * bmh / bmw;
    }
	// MD5変換
    public static String Md5(String str) {
        if(str != null && !str.equals("")) {
            try {
                MessageDigest md5=MessageDigest.getInstance("MD5");
                char[] HEX={'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'};
                byte[] md5Byte=md5.digest(str.getBytes("UTF8"));
                StringBuffer sb=new StringBuffer();
                for(int i=0; i < md5Byte.length; i++) {
                    sb.append(HEX[(int)(md5Byte[i] & 0xff) / 16]);
                    sb.append(HEX[(int)(md5Byte[i] & 0xff) % 16]);
                }
                str=sb.toString();
            } catch(NoSuchAlgorithmException e) {

            } catch(Exception e) {
            }
        }
        return str;
    }
    // 得到手机IMEI
    public static String getImei(Context context) {
        TelephonyManager tm=(TelephonyManager)context.getSystemService(Context.TELEPHONY_SERVICE);
        Log.i("IMEI", tm.getDeviceId());
        return tm.getDeviceId();
    }
    // 安装一个APK文件
    public static void installApk(Context context, File file) {
    	Intent intent=new Intent();
    	intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
    	intent.setAction(android.content.Intent.ACTION_VIEW);
    	intent.setDataAndType(Uri.fromFile(file), "application/vnd.android.package-archive");
    	context.startActivity(intent);
	}
}