1.添加获得应用信息的工具类

app/src/main/java/com/xhly/manageapp/utils/ZJAPPUtils.java

@@ -0,0 +1,165 @@
+package com.xhly.manageapp.utils;
+
+
+import android.content.Context;
+import android.content.Intent;
+import android.content.pm.PackageInfo;
+import android.content.pm.PackageManager;
+import android.graphics.Color;
+import android.net.Uri;
+import android.os.Build;
+
+import androidx.annotation.ColorInt;
+import androidx.core.content.FileProvider;
+
+import com.xhly.corelib.utils.LogUtils;
+
+import java.io.File;
+import java.net.Inet6Address;
+import java.net.InetAddress;
+import java.net.NetworkInterface;
+import java.net.SocketException;
+import java.util.Enumeration;
+import java.util.List;
+import java.util.stream.Collectors;
+
+/**
+ * Created by PSVMC on 16/8/1.
+ */
+public class ZJAPPUtils {
+
+    /**
+     * 获取版本号
+     *
+     * @return 当前应用的版本号
+     */
+    public static int getVersionCode(Context context) {
+        try {
+            PackageManager manager = context.getPackageManager();
+            PackageInfo info = manager.getPackageInfo(context.getPackageName(), 0);
+            int versionCode = info.versionCode;
+            return versionCode;
+        } catch (Exception e) {
+            return 0;
+        }
+    }
+
+    /**
+     * 获取版本号
+     *
+     * @return 当前应用的版本号
+     */
+    public static String getVersionName(Context context) {
+        try {
+            PackageManager manager = context.getPackageManager();
+            PackageInfo info = manager.getPackageInfo(context.getPackageName(), 0);
+            String versionName = info.versionName;
+            return versionName;
+        } catch (Exception e) {
+            return "未知";
+        }
+    }
+
+    public static void installApk(Context mContext, File apkFile) {
+        if (Build.VERSION.SDK_INT >= 24) {//判读版本是否在7.0以上
+            Uri apkUri = FileProvider.getUriForFile(mContext, mContext.getPackageName() + ".fileprovider", apkFile);//在AndroidManifest中的android:authorities值
+            Intent install = new Intent(Intent.ACTION_VIEW);
+            install.setDataAndType(apkUri, "application/vnd.android.package-archive");
+            install.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+            install.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);//对目标应用临时授权该Uri所代表的文件
+            install.addFlags(Intent.FLAG_GRANT_PERSISTABLE_URI_PERMISSION);
+            mContext.startActivity(install);
+        } else {
+            Intent install = new Intent(Intent.ACTION_VIEW);
+            install.setDataAndType(Uri.fromFile(apkFile), "application/vnd.android.package-archive");
+            install.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+            mContext.startActivity(install);
+        }
+    }
+
+    /**
+     * 检查APP是否安装
+     *
+     * @param context
+     * @param pkgName
+     * @return
+     */
+    public static boolean checkAppInstalled(Context context, String pkgName) {
+        if (pkgName == null || pkgName.isEmpty()) {
+            return false;
+        }
+        final PackageManager packageManager = context.getPackageManager();
+        List<PackageInfo> info = packageManager.getInstalledPackages(0);
+        if (info.isEmpty())
+            return false;
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
+            LogUtils.d("packageManager", info.stream().map(it->it.packageName).collect(Collectors.toList()).toString());
+        }
+        for (int i = 0; i < info.size(); i++) {
+            LogUtils.d("packageManager", info.get(i).packageName);
+            if (pkgName.equals(info.get(i).packageName)) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    public static void openApk(Context mContext, String packagename) {
+        Intent intent = mContext.getPackageManager().getLaunchIntentForPackage(packagename);
+        if (intent != null) {
+            intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+            mContext.startActivity(intent);
+        }
+    }
+
+    /**
+     * 过滤蓝光
+     *
+     * @param blueFilterPercent 蓝光过滤比例[10-80]
+     */
+    public static @ColorInt
+    int getColor(int blueFilterPercent) {
+        int realFilter = blueFilterPercent;
+        if (realFilter < 10) {
+            realFilter = 10;
+        } else if (realFilter > 80) {
+            realFilter = 80;
+        }
+        int a = (int) (realFilter / 80f * 180);
+        int r = (int) (200 - (realFilter / 80f) * 190);
+        int g = (int) (180 - (realFilter / 80f) * 170);
+        int b = (int) (60 - realFilter / 80f * 60);
+        return Color.argb(a, r, g, b);
+    }
+
+    /**
+     * 获取ip地址
+     */
+    public static String getHostIP() {
+        String hostIp = null;
+        try {
+            Enumeration nis = NetworkInterface.getNetworkInterfaces();
+            InetAddress ia = null;
+            while (nis.hasMoreElements()) {
+                NetworkInterface ni = (NetworkInterface) nis.nextElement();
+                Enumeration<InetAddress> ias = ni.getInetAddresses();
+                while (ias.hasMoreElements()) {
+                    ia = ias.nextElement();
+                    if (ia instanceof Inet6Address) {
+                        continue;// skip ipv6
+                    }
+                    String ip = ia.getHostAddress();
+                    if (!"127.0.0.1".equals(ip)) {
+                        hostIp = ia.getHostAddress();
+                        break;
+                    }
+                }
+            }
+        } catch (SocketException e) {
+            LogUtils.d("yao", "SocketException");
+            e.printStackTrace();
+        }
+        return hostIp;
+    }
+}
+