源代码备份

AppFrame/src/main/java/com/arialyy/frame/util/AppUtils.java

@@ -0,0 +1,137 @@
+package com.arialyy.frame.util;
+
+import android.content.Context;
+import android.content.pm.PackageInfo;
+import android.content.pm.PackageManager;
+import android.content.pm.PackageManager.NameNotFoundException;
+import android.content.pm.Signature;
+
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+import java.util.ArrayList;
+
+/**
+ * 跟App相关的辅助类
+ */
+public class AppUtils {
+  /**
+   * 应用签名信息
+   */
+  public final static String MD5 = "MD5";
+  public final static String SHA1 = "SHA1";
+  public final static String SHA256 = "SHA256";
+
+  /**
+   * 返回一个签名的对应类型的字符串
+   */
+  public static ArrayList<String> getSingInfo(Context context, String packageName, String type) {
+    ArrayList<String> result = new ArrayList<String>();
+    try {
+      Signature[] signs = getSignatures(context, packageName);
+      for (Signature sig : signs) {
+        String tmp = "error!";
+        if (MD5.equals(type)) {
+          tmp = getSignatureString(sig, MD5);
+        } else if (SHA1.equals(type)) {
+          tmp = getSignatureString(sig, SHA1);
+        } else if (SHA256.equals(type)) {
+          tmp = getSignatureString(sig, SHA256);
+        }
+        result.add(tmp);
+      }
+    } catch (Exception e) {
+      e.printStackTrace();
+    }
+    return result;
+  }
+
+  /**
+   * 返回对应包的签名信息
+   */
+  public static Signature[] getSignatures(Context context, String packageName) {
+    PackageInfo packageInfo = null;
+    try {
+      packageInfo =
+          context.getPackageManager().getPackageInfo(packageName, PackageManager.GET_SIGNATURES);
+      return packageInfo.signatures;
+    } catch (NameNotFoundException e) {
+      e.printStackTrace();
+    }
+    return null;
+  }
+
+  /**
+   * 获取相应的类型的字符串（把签名的byte[]信息转换成16进制）
+   */
+  public static String getSignatureString(Signature sig, String type) {
+    byte[] hexBytes = sig.toByteArray();
+    String fingerprint = "error!";
+    try {
+      MessageDigest digest = MessageDigest.getInstance(type);
+      if (digest != null) {
+        byte[] digestBytes = digest.digest(hexBytes);
+        StringBuilder sb = new StringBuilder();
+        for (byte digestByte : digestBytes) {
+          sb.append((Integer.toHexString((digestByte & 0xFF) | 0x100)).substring(1, 3));
+        }
+        fingerprint = sb.toString();
+      }
+    } catch (NoSuchAlgorithmException e) {
+      e.printStackTrace();
+    }
+
+    return fingerprint;
+  }
+
+  private AppUtils() {
+    throw new UnsupportedOperationException("cannot be instantiated");
+  }
+
+  /**
+   * 获取应用程序名称
+   */
+  public static String getAppName(Context context) {
+    try {
+      PackageManager packageManager = context.getPackageManager();
+      PackageInfo packageInfo = packageManager.getPackageInfo(
+          context.getPackageName(), 0);
+      int labelRes = packageInfo.applicationInfo.labelRes;
+      return context.getResources().getString(labelRes);
+    } catch (NameNotFoundException e) {
+      e.printStackTrace();
+    }
+    return null;
+  }
+
+  /**
+   * [获取应用程序版本名称信息]
+   *
+   * @return 当前应用的版本名称
+   */
+  public static String getVersionName(Context context) {
+    try {
+      PackageManager packageManager = context.getPackageManager();
+      PackageInfo packageInfo = packageManager.getPackageInfo(
+          context.getPackageName(), 0);
+      return packageInfo.versionName;
+    } catch (NameNotFoundException e) {
+      e.printStackTrace();
+    }
+    return null;
+  }
+
+  /**
+   * 获取应用版本号
+   *
+   * @return 当前应用版本
+   */
+  public static int getVersionNumber(Context context) {
+    try {
+      PackageInfo info = context.getPackageManager().getPackageInfo(context.getPackageName(), 0);
+      return info.versionCode;
+    } catch (NameNotFoundException e) {
+      e.printStackTrace();
+    }
+    return 1;
+  }
+}