Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
import java.util.List;

import android.content.Context;

import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.ProviderInfo;

import android.text.TextUtils;

public class Main {
    public static String getAuthorityFromPermission(Context context, String permission) {
        if (TextUtils.isEmpty(permission)) {
            return null;
        }
        List<PackageInfo> packs = context.getPackageManager().getInstalledPackages(PackageManager.GET_PROVIDERS);
        if (packs == null) {
            return null;
        }
        for (PackageInfo pack : packs) {
            ProviderInfo[] providers = pack.providers;
            if (providers != null) {
                for (ProviderInfo provider : providers) {
                    if (permission.equals(provider.readPermission) || permission.equals(provider.writePermission)) {
                        return provider.authority;
                    }
                }
            }
        }
        return null;

    }
}