diff --git a/lib/src/main/java/com/wuliang/lib/InstallActivity.java b/lib/src/main/java/com/wuliang/lib/InstallActivity.java
index fa6e51d..74b3a16 100644
--- a/lib/src/main/java/com/wuliang/lib/InstallActivity.java
+++ b/lib/src/main/java/com/wuliang/lib/InstallActivity.java
@@ -43,6 +43,7 @@ public class InstallActivity extends AppCompatActivity {
     private List<String> apkPaths;
     private ExecutorService installXapkExectuor;
 
+    private PackageInstaller.Session mSession;
 
     @Override
     protected void onCreate(@Nullable Bundle savedInstanceState) {
@@ -67,7 +68,13 @@ public class InstallActivity extends AppCompatActivity {
         }
 
         if (apkPaths == null || apkPaths.isEmpty()) {
-            Toast.makeText(this, "文件找不到", Toast.LENGTH_SHORT).show();
+            Toast.makeText(this, "解析apk出错或已取消", Toast.LENGTH_SHORT).show();
+            finish();
+        }
+
+        if (RomUtils.isMeizu() || RomUtils.isVivo()) {
+            Toast.makeText(this,"魅族或VIVO系统用户如遇安装被中止或者安装失败的情况，请尝试联系手机平台客服，或者更换系统内置包安装器再重试",
+                    Toast.LENGTH_SHORT).show();
             finish();
         }
 
@@ -76,7 +83,7 @@ public class InstallActivity extends AppCompatActivity {
 
             try {
 
-                PackageInstaller.Session mSession = initSession();
+                mSession = initSession();
 
                 for (String apkPath : apkPaths) {
                     addApkToInstallSession(apkPath, mSession);
@@ -86,6 +93,7 @@ public class InstallActivity extends AppCompatActivity {
 
             } catch (IOException e) {
                 e.printStackTrace();
+                abandonSession();
             }
 
         });
@@ -136,9 +144,18 @@ public class InstallActivity extends AppCompatActivity {
 
     }
 
+    @TargetApi(21)
+    private void abandonSession() {
+        if (mSession != null) {
+            mSession.abandon();
+            mSession.close();
+        }
+    }
+
     @TargetApi(21)
     @Override
     protected void onNewIntent(Intent intent) {
+        super.onNewIntent(intent);
         Bundle extras = intent.getExtras();
         if (PACKAGE_INSTALLED_ACTION.equals(intent.getAction())) {
             int status = -100;
@@ -186,5 +203,7 @@ public class InstallActivity extends AppCompatActivity {
             installXapkExectuor.shutdown();
         }
 
+        abandonSession();
+
     }
 }
diff --git a/lib/src/main/java/com/wuliang/lib/RomUtils.java b/lib/src/main/java/com/wuliang/lib/RomUtils.java
new file mode 100644
index 0000000..ba7cd4d
--- /dev/null
+++ b/lib/src/main/java/com/wuliang/lib/RomUtils.java
@@ -0,0 +1,456 @@
+package com.wuliang.lib;
+
+import android.annotation.SuppressLint;
+import android.os.Build;
+import android.os.Environment;
+import android.text.TextUtils;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.lang.reflect.Method;
+import java.util.Properties;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2018/07/04
+ *     desc  : utils about rom
+ * </pre>
+ */
+public final class RomUtils {
+
+    private static final String[] ROM_HUAWEI    = {"huawei"};
+    private static final String[] ROM_VIVO      = {"vivo"};
+    private static final String[] ROM_XIAOMI    = {"xiaomi"};
+    private static final String[] ROM_OPPO      = {"oppo"};
+    private static final String[] ROM_LEECO     = {"leeco", "letv"};
+    private static final String[] ROM_360       = {"360", "qiku"};
+    private static final String[] ROM_ZTE       = {"zte"};
+    private static final String[] ROM_ONEPLUS   = {"oneplus"};
+    private static final String[] ROM_NUBIA     = {"nubia"};
+    private static final String[] ROM_COOLPAD   = {"coolpad", "yulong"};
+    private static final String[] ROM_LG        = {"lg", "lge"};
+    private static final String[] ROM_GOOGLE    = {"google"};
+    private static final String[] ROM_SAMSUNG   = {"samsung"};
+    private static final String[] ROM_MEIZU     = {"meizu"};
+    private static final String[] ROM_LENOVO    = {"lenovo"};
+    private static final String[] ROM_SMARTISAN = {"smartisan"};
+    private static final String[] ROM_HTC       = {"htc"};
+    private static final String[] ROM_SONY      = {"sony"};
+    private static final String[] ROM_GIONEE    = {"gionee", "amigo"};
+    private static final String[] ROM_MOTOROLA  = {"motorola"};
+
+    private static final String VERSION_PROPERTY_HUAWEI  = "ro.build.version.emui";
+    private static final String VERSION_PROPERTY_VIVO    = "ro.vivo.os.build.display.id";
+    private static final String VERSION_PROPERTY_XIAOMI  = "ro.build.version.incremental";
+    private static final String VERSION_PROPERTY_OPPO    = "ro.build.version.opporom";
+    private static final String VERSION_PROPERTY_LEECO   = "ro.letv.release.version";
+    private static final String VERSION_PROPERTY_360     = "ro.build.uiversion";
+    private static final String VERSION_PROPERTY_ZTE     = "ro.build.MiFavor_version";
+    private static final String VERSION_PROPERTY_ONEPLUS = "ro.rom.version";
+    private static final String VERSION_PROPERTY_NUBIA   = "ro.build.rom.id";
+    private final static String UNKNOWN                  = "unknown";
+
+    private static RomInfo bean = null;
+
+    private RomUtils() {
+        throw new UnsupportedOperationException("u can't instantiate me...");
+    }
+
+    /**
+     * Return whether the rom is made by huawei.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isHuawei() {
+        return ROM_HUAWEI[0].equals(getRomInfo().name);
+    }
+
+    /**
+     * Return whether the rom is made by vivo.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isVivo() {
+        return ROM_VIVO[0].equals(getRomInfo().name);
+    }
+
+    /**
+     * Return whether the rom is made by xiaomi.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isXiaomi() {
+        return ROM_XIAOMI[0].equals(getRomInfo().name);
+    }
+
+    /**
+     * Return whether the rom is made by oppo.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isOppo() {
+        return ROM_OPPO[0].equals(getRomInfo().name);
+    }
+
+    /**
+     * Return whether the rom is made by leeco.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isLeeco() {
+        return ROM_LEECO[0].equals(getRomInfo().name);
+    }
+
+    /**
+     * Return whether the rom is made by 360.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean is360() {
+        return ROM_360[0].equals(getRomInfo().name);
+    }
+
+    /**
+     * Return whether the rom is made by zte.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isZte() {
+        return ROM_ZTE[0].equals(getRomInfo().name);
+    }
+
+    /**
+     * Return whether the rom is made by oneplus.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isOneplus() {
+        return ROM_ONEPLUS[0].equals(getRomInfo().name);
+    }
+
+    /**
+     * Return whether the rom is made by nubia.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isNubia() {
+        return ROM_NUBIA[0].equals(getRomInfo().name);
+    }
+
+    /**
+     * Return whether the rom is made by coolpad.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isCoolpad() {
+        return ROM_COOLPAD[0].equals(getRomInfo().name);
+    }
+
+    /**
+     * Return whether the rom is made by lg.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isLg() {
+        return ROM_LG[0].equals(getRomInfo().name);
+    }
+
+    /**
+     * Return whether the rom is made by google.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isGoogle() {
+        return ROM_GOOGLE[0].equals(getRomInfo().name);
+    }
+
+    /**
+     * Return whether the rom is made by samsung.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isSamsung() {
+        return ROM_SAMSUNG[0].equals(getRomInfo().name);
+    }
+
+    /**
+     * Return whether the rom is made by meizu.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isMeizu() {
+        return ROM_MEIZU[0].equals(getRomInfo().name);
+    }
+
+    /**
+     * Return whether the rom is made by lenovo.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isLenovo() {
+        return ROM_LENOVO[0].equals(getRomInfo().name);
+    }
+
+    /**
+     * Return whether the rom is made by smartisan.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isSmartisan() {
+        return ROM_SMARTISAN[0].equals(getRomInfo().name);
+    }
+
+    /**
+     * Return whether the rom is made by htc.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isHtc() {
+        return ROM_HTC[0].equals(getRomInfo().name);
+    }
+
+    /**
+     * Return whether the rom is made by sony.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isSony() {
+        return ROM_SONY[0].equals(getRomInfo().name);
+    }
+
+    /**
+     * Return whether the rom is made by gionee.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isGionee() {
+        return ROM_GIONEE[0].equals(getRomInfo().name);
+    }
+
+    /**
+     * Return whether the rom is made by motorola.
+     *
+     * @return {@code true}: yes<br>{@code false}: no
+     */
+    public static boolean isMotorola() {
+        return ROM_MOTOROLA[0].equals(getRomInfo().name);
+    }
+
+    /**
+     * Return the rom's information.
+     *
+     * @return the rom's information
+     */
+    public static RomInfo getRomInfo() {
+        if (bean != null) return bean;
+        bean = new RomInfo();
+        final String brand = getBrand();
+        final String manufacturer = getManufacturer();
+        if (isRightRom(brand, manufacturer, ROM_HUAWEI)) {
+            bean.name = ROM_HUAWEI[0];
+            String version = getRomVersion(VERSION_PROPERTY_HUAWEI);
+            String[] temp = version.split("_");
+            if (temp.length > 1) {
+                bean.version = temp[1];
+            } else {
+                bean.version = version;
+            }
+            return bean;
+        }
+        if (isRightRom(brand, manufacturer, ROM_VIVO)) {
+            bean.name = ROM_VIVO[0];
+            bean.version = getRomVersion(VERSION_PROPERTY_VIVO);
+            return bean;
+        }
+        if (isRightRom(brand, manufacturer, ROM_XIAOMI)) {
+            bean.name = ROM_XIAOMI[0];
+            bean.version = getRomVersion(VERSION_PROPERTY_XIAOMI);
+            return bean;
+        }
+        if (isRightRom(brand, manufacturer, ROM_OPPO)) {
+            bean.name = ROM_OPPO[0];
+            bean.version = getRomVersion(VERSION_PROPERTY_OPPO);
+            return bean;
+        }
+        if (isRightRom(brand, manufacturer, ROM_LEECO)) {
+            bean.name = ROM_LEECO[0];
+            bean.version = getRomVersion(VERSION_PROPERTY_LEECO);
+            return bean;
+        }
+
+        if (isRightRom(brand, manufacturer, ROM_360)) {
+            bean.name = ROM_360[0];
+            bean.version = getRomVersion(VERSION_PROPERTY_360);
+            return bean;
+        }
+        if (isRightRom(brand, manufacturer, ROM_ZTE)) {
+            bean.name = ROM_ZTE[0];
+            bean.version = getRomVersion(VERSION_PROPERTY_ZTE);
+            return bean;
+        }
+        if (isRightRom(brand, manufacturer, ROM_ONEPLUS)) {
+            bean.name = ROM_ONEPLUS[0];
+            bean.version = getRomVersion(VERSION_PROPERTY_ONEPLUS);
+            return bean;
+        }
+        if (isRightRom(brand, manufacturer, ROM_NUBIA)) {
+            bean.name = ROM_NUBIA[0];
+            bean.version = getRomVersion(VERSION_PROPERTY_NUBIA);
+            return bean;
+        }
+
+        if (isRightRom(brand, manufacturer, ROM_COOLPAD)) {
+            bean.name = ROM_COOLPAD[0];
+        } else if (isRightRom(brand, manufacturer, ROM_LG)) {
+            bean.name = ROM_LG[0];
+        } else if (isRightRom(brand, manufacturer, ROM_GOOGLE)) {
+            bean.name = ROM_GOOGLE[0];
+        } else if (isRightRom(brand, manufacturer, ROM_SAMSUNG)) {
+            bean.name = ROM_SAMSUNG[0];
+        } else if (isRightRom(brand, manufacturer, ROM_MEIZU)) {
+            bean.name = ROM_MEIZU[0];
+        } else if (isRightRom(brand, manufacturer, ROM_LENOVO)) {
+            bean.name = ROM_LENOVO[0];
+        } else if (isRightRom(brand, manufacturer, ROM_SMARTISAN)) {
+            bean.name = ROM_SMARTISAN[0];
+        } else if (isRightRom(brand, manufacturer, ROM_HTC)) {
+            bean.name = ROM_HTC[0];
+        } else if (isRightRom(brand, manufacturer, ROM_SONY)) {
+            bean.name = ROM_SONY[0];
+        } else if (isRightRom(brand, manufacturer, ROM_GIONEE)) {
+            bean.name = ROM_GIONEE[0];
+        } else if (isRightRom(brand, manufacturer, ROM_MOTOROLA)) {
+            bean.name = ROM_MOTOROLA[0];
+        } else {
+            bean.name = manufacturer;
+        }
+        bean.version = getRomVersion("");
+        return bean;
+    }
+
+    private static boolean isRightRom(final String brand, final String manufacturer, final String... names) {
+        for (String name : names) {
+            if (brand.contains(name) || manufacturer.contains(name)) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    private static String getManufacturer() {
+        try {
+            String manufacturer = Build.MANUFACTURER;
+            if (!TextUtils.isEmpty(manufacturer)) {
+                return manufacturer.toLowerCase();
+            }
+        } catch (Throwable ignore) { /**/ }
+        return UNKNOWN;
+    }
+
+    private static String getBrand() {
+        try {
+            String brand = Build.BRAND;
+            if (!TextUtils.isEmpty(brand)) {
+                return brand.toLowerCase();
+            }
+        } catch (Throwable ignore) { /**/ }
+        return UNKNOWN;
+    }
+
+    private static String getRomVersion(final String propertyName) {
+        String ret = "";
+        if (!TextUtils.isEmpty(propertyName)) {
+            ret = getSystemProperty(propertyName);
+        }
+        if (TextUtils.isEmpty(ret) || ret.equals(UNKNOWN)) {
+            try {
+                String display = Build.DISPLAY;
+                if (!TextUtils.isEmpty(display)) {
+                    ret = display.toLowerCase();
+                }
+            } catch (Throwable ignore) { /**/ }
+        }
+        if (TextUtils.isEmpty(ret)) {
+            return UNKNOWN;
+        }
+        return ret;
+    }
+
+    private static String getSystemProperty(final String name) {
+        String prop = getSystemPropertyByShell(name);
+        if (!TextUtils.isEmpty(prop)) return prop;
+        prop = getSystemPropertyByStream(name);
+        if (!TextUtils.isEmpty(prop)) return prop;
+        if (Build.VERSION.SDK_INT < 28) {
+            return getSystemPropertyByReflect(name);
+        }
+        return prop;
+    }
+
+    private static String getSystemPropertyByShell(final String propName) {
+        String line;
+        BufferedReader input = null;
+        try {
+            Process p = Runtime.getRuntime().exec("getprop " + propName);
+            input = new BufferedReader(new InputStreamReader(p.getInputStream()), 1024);
+            String ret = input.readLine();
+            if (ret != null) {
+                return ret;
+            }
+        } catch (IOException ignore) {
+        } finally {
+            if (input != null) {
+                try {
+                    input.close();
+                } catch (IOException ignore) { /**/ }
+            }
+        }
+        return "";
+    }
+
+    private static String getSystemPropertyByStream(final String key) {
+        try {
+            Properties prop = new Properties();
+            FileInputStream is = new FileInputStream(
+                    new File(Environment.getRootDirectory(), "build.prop")
+            );
+            prop.load(is);
+            return prop.getProperty(key, "");
+        } catch (Exception ignore) { /**/ }
+        return "";
+    }
+
+    private static String getSystemPropertyByReflect(String key) {
+        try {
+            @SuppressLint("PrivateApi")
+            Class<?> clz = Class.forName("android.os.SystemProperties");
+            Method getMethod = clz.getMethod("get", String.class, String.class);
+            return (String) getMethod.invoke(clz, key, "");
+        } catch (Exception e) { /**/ }
+        return "";
+    }
+
+    public static class RomInfo {
+        private String name;
+        private String version;
+
+        public String getName() {
+            return name;
+        }
+
+        public String getVersion() {
+            return version;
+        }
+
+        @Override
+        public String toString() {
+            return "RomInfo{name=" + name +
+                    ", version=" + version + "}";
+        }
+    }
+}