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getSHA1 #56

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merged 1 commit into from Oct 9, 2016
Merged

getSHA1 #56

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34 changes: 33 additions & 1 deletion utilcode/src/main/java/com/blankj/utilcode/utils/AppUtils.java
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Expand Up @@ -9,6 +9,8 @@
import android.content.pm.Signature;
import android.graphics.drawable.Drawable;

import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.io.BufferedReader;
import java.io.File;
import java.io.IOException;
Expand All @@ -30,6 +32,36 @@ public class AppUtils {
private AppUtils() {
throw new UnsupportedOperationException("u can't instantiate me...");
}


/**
* 获取应用的 SHA1 值， 可据此判断高德，百度地图 key 是否正确
* @param context 上下文
* @return 应用的 SHA1 字符串, 比如： 53:FD:54:DC:19:0F:11:AC:B5:22:9E:F1:1A:68:88:1B:8B:E8:54:42
*/
public static String getSHA1(Context context) {
try {
PackageInfo info = context.getPackageManager().getPackageInfo(
context.getPackageName(), PackageManager.GET_SIGNATURES);
byte[] cert = info.signatures[0].toByteArray();
MessageDigest md = MessageDigest.getInstance("SHA1");
byte[] publicKey = md.digest(cert);
StringBuilder hexString = new StringBuilder();
for (byte aPublicKey : publicKey) {
String appendString = Integer.toHexString(0xFF & aPublicKey).toUpperCase();
if (appendString.length() == 1)
hexString.append("0");
hexString.append(appendString);
hexString.append(":");
}
String result = hexString.toString();
return result.substring(0, result.length() - 1);
} catch (PackageManager.NameNotFoundException | NoSuchAlgorithmException e) {
e.printStackTrace();
}
return "";
}


/**
* 判断App是否安装
Expand Down Expand Up @@ -628,4 +660,4 @@ public static boolean cleanAppData(Context context, File... dirs) {
}
return isSuccess;
}
}
}