Android: Checking MIUI permissions

XCheckPermission.java

/*
 * Copyright (c) 2017.
 * qsboy.com 版权所有
 * https://github.com/JasonQS/Anti-recall/blob/ec45306/Java/XCheckPermission.java
 */

package com.qiansheng.messagecapture;

import android.app.AppOpsManager;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.os.Binder;
import android.util.Log;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.lang.reflect.Method;

public class XCheckPermission {

    static final String TAG = "XCheckPermission";

    static boolean checkFloatWindowPermission(Context context) {
        AppOpsManager manager = (AppOpsManager) context.getSystemService(Context.APP_OPS_SERVICE);
        try {
            Class clazz = AppOpsManager.class;
            Method method = clazz.getDeclaredMethod("checkOp", int.class, int.class, String.class);
            return AppOpsManager.MODE_ALLOWED == (int) method.invoke(manager, 24, Binder.getCallingUid(), context.getPackageName());
        } catch (Exception e) {
            Log.e(TAG, Log.getStackTraceString(e));
            return false;
        }
    }

    static boolean checkFileReadPermission(){

        return false;
    }

    /**
     * 小米 ROM 权限申请
     */
    static void applyMiuiPermission(Context context) {
        int versionCode = getMiuiVersion();
        if (versionCode == 7) {
            goToMiuiPermissionActivity_V7(context);
        } else if (versionCode == 8) {
            goToMiuiPermissionActivity_V8(context);
        } else {
            Log.e(TAG, "this is a special MIUI rom version, its version code " + versionCode);
        }
    }

    /**
     * 获取小米 rom 版本号，获取失败返回 -1
     *
     * @return miui rom version code, if fail , return -1
     */
    private static int getMiuiVersion() {
        String version = getSystemProperty("ro.miui.ui.version.name");
        if (version != null) {
            try {
                return Integer.parseInt(version.substring(1));
            } catch (Exception e) {
                Log.e(TAG, "get miui version code error, version : " + version);
                Log.e(TAG, Log.getStackTraceString(e));
            }
        }
        return -1;
    }

    private static boolean isIntentAvailable(Intent intent, Context context) {
        return intent != null && context.getPackageManager().queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY).size() > 0;
    }


    /**
     * 小米 V7 版本 ROM权限申请
     */
    private static void goToMiuiPermissionActivity_V7(Context context) {
        Intent intent = new Intent("miui.intent.action.APP_PERM_EDITOR");
        intent.setClassName("com.miui.securitycenter", "com.miui.permcenter.permissions.AppPermissionsEditorActivity");
        intent.putExtra("extra_pkgname", context.getPackageName());
        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

        if (isIntentAvailable(intent, context)) {
            context.startActivity(intent);
        } else {
            Log.e(TAG, "Intent is not available!");
        }
    }

    /**
     * 小米 V8 版本 ROM权限申请
     */
    private static void goToMiuiPermissionActivity_V8(Context context) {
        Intent intent = new Intent("miui.intent.action.APP_PERM_EDITOR");
        intent.setClassName("com.miui.securitycenter", "com.miui.permcenter.permissions.PermissionsEditorActivity");
        intent.putExtra("extra_pkgname", context.getPackageName());
        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

        if (isIntentAvailable(intent, context)) {
            context.startActivity(intent);
        } else {
            Log.e(TAG, "Intent is not available!");
        }
    }


    private static String getSystemProperty(String propName) {
        String line;
        BufferedReader input = null;
        try {
            Process p = Runtime.getRuntime().exec("getprop " + propName);
            input = new BufferedReader(new InputStreamReader(p.getInputStream()), 1024);
            line = input.readLine();
            input.close();
        } catch (IOException ex) {
            Log.e(TAG, "Unable to read system property " + propName, ex);
            return null;
        } finally {
            if (input != null) {
                try {
                    input.close();
                } catch (IOException e) {
                    Log.e(TAG, "Exception while closing InputStream", e);
                }
            }
        }
        return line;
    }

}