新增弱引用handler 3des加密工具类

AllenCoder · Apr 11, 2017 · 5a42ed5 · 5a42ed5
1 parent 23f0cc7
commit 5a42ed5
Show file tree

Hide file tree

Showing 3 changed files with 209 additions and 1 deletion.
diff --git a/README.md b/README.md
@@ -44,6 +44,8 @@ allprojects {
 | StatusBarUtils          |状态栏处理工具类 ，支持沉浸式状态栏|    [StatusBarUtils][17]  |     |
 | ToolResource              | Android 获取资源工具类                                                 |  [ToolResource][18]    |     |
 | TouchEventUtil         |  Android Touch事件打印辅助工具类                                      |    [TouchEventUtil][19]  |     |
+| WeakRefHander         | 弱引用 handler 防止内存泄露                                     |    [WeakRefHander][23]  |     |
+| SecretUtils         |  3DES 加密/解密                                      |    [SecretUtils][24]  |     |
 
 ```
 dependencies {
@@ -119,4 +121,6 @@ dependencies {
   [19]: https://github.com/AllenCoder/SuperUtils/blob/master/apputils/src/main/java/com/allen/apputils/TouchEventUtil.java
   [20]: https://github.com/AllenCoder/SuperUtils/blob/master/dbutils/src/main/java/com/allen/dbutils/Utils.java
   [21]: https://github.com/AllenCoder/SuperUtils/blob/master/mediautil/src/main/java/com/allen/mediautil/ImageTakerHelper.java
-  [22]: https://github.com/AllenCoder/SuperUtils/blob/master/mediautil/src/main/java/com/allen/mediautil/Utils.java
+  [22]: https://github.com/AllenCoder/SuperUtils/blob/master/mediautil/src/main/java/com/allen/mediautil/Utils.java
+  [23]: https://github.com/AllenCoder/SuperUtils/blob/master/mediautil/src/main/java/com/allen/mediautil/WeakRefHander.java
+  [24]: https://github.com/AllenCoder/SuperUtils/blob/master/mediautil/src/main/java/com/allen/mediautil/SecretUtils.java
diff --git a/apputils/src/main/java/com/allen/apputils/SecretUtils.java b/apputils/src/main/java/com/allen/apputils/SecretUtils.java
@@ -0,0 +1,112 @@
+/*
+ * Copyright  2017 [AllenCoderr]
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.allen.apputils;
+
+
+import java.io.UnsupportedEncodingException;
+import java.security.NoSuchAlgorithmException;
+import javax.crypto.Cipher;
+import javax.crypto.NoSuchPaddingException;
+import javax.crypto.SecretKey;
+import javax.crypto.spec.SecretKeySpec;
+
+/**
+ * 3DES 加密/解密
+ */
+
+
+
+
+/**
+ * SecretUtils {3DES加密解密的工具类 }
+
+ */
+public class SecretUtils {
+
+    //定义加密算法，有DES、DESede(即3DES)、Blowfish
+    private static final String Algorithm = "DESede";
+    private static final String PASSWORD_CRYPT_KEY = "2017abcdefghijklmnopQrst123";
+
+
+    /**
+     * 加密方法
+     * @param src 源数据的字节数组
+     * @return
+     */
+    public static byte[] encryptMode(byte[] src) {
+        try {
+            SecretKey deskey = new SecretKeySpec(build3DesKey(PASSWORD_CRYPT_KEY), Algorithm);    //生成密钥
+            Cipher c1 = Cipher.getInstance(Algorithm);    //实例化负责加密/解密的Cipher工具类
+            c1.init(Cipher.ENCRYPT_MODE, deskey);    //初始化为加密模式
+            return c1.doFinal(src);
+        } catch (java.security.NoSuchAlgorithmException e1) {
+            e1.printStackTrace();
+        } catch (javax.crypto.NoSuchPaddingException e2) {
+            e2.printStackTrace();
+        } catch (java.lang.Exception e3) {
+            e3.printStackTrace();
+        }
+        return null;
+    }
+
+
+    /**
+     * 解密函数
+     * @param src 密文的字节数组
+     * @return
+     */
+    public static byte[] decryptMode(byte[] src) {
+        try {
+            SecretKey deskey = new SecretKeySpec(build3DesKey(PASSWORD_CRYPT_KEY), Algorithm);
+            Cipher c1 = Cipher.getInstance(Algorithm);
+            c1.init(Cipher.DECRYPT_MODE, deskey);    //初始化为解密模式
+            return c1.doFinal(src);
+        } catch (java.security.NoSuchAlgorithmException e1) {
+            e1.printStackTrace();
+        } catch (javax.crypto.NoSuchPaddingException e2) {
+            e2.printStackTrace();
+        } catch (java.lang.Exception e3) {
+            e3.printStackTrace();
+        }
+        return null;
+    }
+
+
+    /*
+     * 根据字符串生成密钥字节数组
+     * @param keyStr 密钥字符串
+     * @return
+     * @throws UnsupportedEncodingException
+     */
+    public static byte[] build3DesKey(String keyStr) throws UnsupportedEncodingException{
+        byte[] key = new byte[24];    //声明一个24位的字节数组，默认里面都是0
+        byte[] temp = keyStr.getBytes("UTF-8");    //将字符串转成字节数组
+
+        /*
+         * 执行数组拷贝
+         * System.arraycopy(源数组，从源数组哪里开始拷贝，目标数组，拷贝多少位)
+         */
+        if(key.length > temp.length){
+            //如果temp不够24位，则拷贝temp数组整个长度的内容到key数组中
+            System.arraycopy(temp, 0, key, 0, temp.length);
+        }else{
+            //如果temp大于24位，则拷贝temp数组24个长度的内容到key数组中
+            System.arraycopy(temp, 0, key, 0, key.length);
+        }
+        return key;
+    }
+}
diff --git a/apputils/src/main/java/com/allen/apputils/WeakRefHander.java b/apputils/src/main/java/com/allen/apputils/WeakRefHander.java
@@ -0,0 +1,92 @@
+/*
+ * Copyright  2017 [AllenCoderr]
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.allen.apputils;
+
+import android.os.Handler;
+import android.os.Message;
+
+import java.lang.ref.WeakReference;
+
+/**
+ * 作者: allen on 15/11/24.
+ */
+
+/**
+ * 弱引用 handler 防止内存泄露
+ */
+public class WeakRefHander extends Handler {
+
+    private final WeakReference<Callback> mRef;
+    private final int mLoopTime;
+    private int NO_LOOP = -1;
+    private int what =0;
+
+    /**
+     * 循环
+     *
+     * @param loopAction
+     * @param loopTime
+     */
+    public WeakRefHander(Callback loopAction, int loopTime) {
+        super();
+        this.mRef = new WeakReference<>(loopAction);
+        this.mLoopTime = loopTime;
+
+    }
+
+    /**
+     * 不循环
+     *
+     * @param loopAction
+     */
+    public WeakRefHander(Callback loopAction) {
+        super();
+        mRef = new WeakReference<>(loopAction);
+        mLoopTime = NO_LOOP;
+    }
+
+    @Override
+    public void handleMessage(Message msg) {
+        Callback action = mRef.get();
+        if (action != null) {
+            action.handleMessage(msg);
+            if (mLoopTime != NO_LOOP) {
+                sendEmptyMessageDelayed(what, mLoopTime);
+            }
+        }
+    }
+
+    public void start() {
+        removeMessages(0);
+        sendEmptyMessageDelayed(0, 0);
+    }
+
+    public void start(int what, long delay) {
+        this.what = what;
+        removeMessages(what);
+        sendEmptyMessageDelayed(what, delay);
+    }
+
+    public void stop() {
+        removeMessages(what);
+    }
+
+    public void clear() {
+        removeMessages(what);
+        mRef.clear();
+    }
+}