1、根據(jù)代碼獲取應(yīng)用簽名

應(yīng)用簽名工具類：ApplySigningUtils.java

public class ApplySigningUtils {/*** 獲取應(yīng)用簽名** @param context* @param packageName* @return*/public static String getRawSignatureStr(Context context, String packageName) {try {Signature[] signs = getRawSignature(context, packageName);String signValidString = getSignValidString(signs[0].toByteArray());return signValidString;} catch (Exception e) {e.printStackTrace();}return null;}public static Signature[] getRawSignature(Context context, String packageName) {if (packageName == null || packageName.length() == 0) {return null;}try {PackageInfo info = context.getPackageManager().getPackageInfo(packageName, PackageManager.GET_SIGNATURES);if (info != null) {return info.signatures;}} catch (PackageManager.NameNotFoundException e) {e.printStackTrace();}return null;}private static String getSignValidString(byte[] paramArrayOfByte) throws NoSuchAlgorithmException {MessageDigest localMessageDigest = MessageDigest.getInstance("MD5");localMessageDigest.update(paramArrayOfByte);return toHexString(localMessageDigest.digest());}private static String toHexString(byte[] paramArrayOfByte) {if (paramArrayOfByte == null) {return null;}StringBuilder localStringBuilder = new StringBuilder(2 * paramArrayOfByte.length);for (int i = 0; ; i++) {if (i >= paramArrayOfByte.length) {return localStringBuilder.toString();}String str = Integer.toString(0xFF & paramArrayOfByte[i], 16);if (str.length() == 1) {str = "0" + str;}localStringBuilder.append(str);}} }

在MainActivity的onCreate調(diào)用簽名工具類（記得安裝已打包的APK，直接運(yùn)行獲取到的簽名是不正確的）

public class MainActivity extends AppCompatActivity {@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);String s = ApplySigningUtils.getRawSignatureStr(this,getPackageName());Log.d("應(yīng)用簽名：",""+ s);} }

? 這樣就能獲取到應(yīng)用簽名啦

2、可從微信開(kāi)發(fā)平臺(tái)下載工具進(jìn)行獲取

安裝完APK，輸入自己的應(yīng)用包名，就可以獲取應(yīng)用簽名

APK下載地址如下：

https://res.wx.qq.com/open/zh_CN/htmledition/res/dev/download/sdk/Gen_Signature_Android2.apk??????

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