ApkTool.java

package com.killyulong.root_y90;

import android.content.Context;
import android.content.Intent;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.os.Environment;
import android.net.Uri;
import android.util.Log;

/**
 * Created by lybly on 2018/2/9.
 */

public class ApkTool {
    /* 卸载apk */
    public static void uninstallApk(Context context, String packageName) {
        Uri uri = Uri.parse("package:" + packageName);
        Intent intent = new Intent(Intent.ACTION_DELETE, uri);
        context.startActivity(intent);
    }

    /* 安装apk */
    public static void installApk(Context context, String fileName) {
        Intent intent = new Intent();
        intent.setAction(Intent.ACTION_VIEW);
        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        intent.setDataAndType(Uri.parse("file://" + fileName),"application/vnd.android.package-archive");
        context.startActivity(intent);
    }

    //获取包名
    //传入的 如/storage/emulated/0/.svgbrige/self.apk
    public static String getapkname(Context context,String path) throws Exception {
        PackageManager pm = context.getPackageManager();
        PackageInfo packageInfo = pm.getPackageArchiveInfo(path, PackageManager.GET_ACTIVITIES);
        if(packageInfo != null) {
            ApplicationInfo appInfo = packageInfo.applicationInfo;
            return appInfo.packageName;
        }
        return null;
    }

    /**
     * 检查包是否存在
     *
     * @param packname
     * @return
     */
    public static boolean checkPackInfo(Context context,String packname) {
        PackageInfo packageInfo = null;
        try {
            packageInfo = context.getPackageManager().getPackageInfo(packname, 0);
        } catch (PackageManager.NameNotFoundException e) {
            e.printStackTrace();
        }
        return packageInfo != null;
    }
    
    //启动已经安装的软件
    public static void launchPackage(Context context,String packname)
    {
        PackageManager packageManager=context.getPackageManager();
        Intent intent = packageManager.getLaunchIntentForPackage(packname);
        context.startActivity(intent);
    }
}