插件化安装按钮显示背景修改，下载添加是否是插件字段

app/src/main/java/com/gh/common/util/PackageUtils.java

@@ -133,6 +133,70 @@ public class PackageUtils {
 		return null;
 	}
 
+	/*
+	 * 判断是否是插件包
+	 */
+	public static boolean isSignature(Context context, String packageName) {
+		String signature = getApkSignatureByPackageName(context, packageName);
+		if (publicKey.equals(signature)) {
+			return true;
+		}
+		return false;
+	}
+
+	/**
+	 * 根据apk路径，获取apk包名、签名 根据包名 判断 是否已安装游戏 根据签名 判断 是否一致
+	 *
+	 * @param path apk路径
+	 * @return true 可执行安装 false 要卸载已安装的，再执行安装
+	 */
+	public static boolean isCanLaunchSetup(Context context, String path) {
+		String packageName = getPackageNameByPath(context, path);
+
+		boolean isContain = isContain(context, packageName);
+		if (!isContain) {
+			return true;
+		}
+
+		boolean isInstalled = isInstalled(context, packageName);
+		if (!isInstalled) {
+			return true;
+		}
+
+		String signature = getApkSignatureByPackageName(context, packageName);
+		return publicKey.equals(signature);
+	}
+
+	/*
+	 * 启动安装应用程序
+	 */
+	public static void launchSetup(final Context context, final String path) {
+		if (isCanLaunchSetup(context, path)) {
+			context.startActivity(PackageUtils.getInstallIntent(path));
+		} else {
+			DialogUtils.showPluginDialog(context, new DialogUtils.ConfiremListener() {
+				@Override
+				public void onConfirem() {
+					context.startActivity(PackageUtils.getUninstallIntent(context, path));
+				}
+			});
+		}
+	}
+
+	/*
+	 * 获取应用第一次安装的时间
+	 */
+	public static long getInstalledTime(Context context, String packageName) {
+		try {
+			PackageInfo packageInfo = context.getPackageManager()
+					.getPackageInfo(packageName, 0);
+			return packageInfo.firstInstallTime;
+		} catch (NameNotFoundException e) {
+			e.printStackTrace();
+		}
+		return 0;
+	}
+
 	/*
 	 * 解析签名
 	 */
@@ -246,7 +310,7 @@ public class PackageUtils {
 			return false;
 		}
 		if (map == null) {
-			map = new ArrayMap<String, Boolean>();
+			map = new ArrayMap<>();
 			List<PackageInfo> infos = context.getPackageManager()
 					.getInstalledPackages(0);
 			for (PackageInfo info : infos) {