盒子升级apk

朴灿烈づ我的快乐病毒、 2022-06-10 03:26 157阅读 0赞

/** * 创建文件夹 * <p> * getFilesDir()不能使用安装目录，“解析程序包时出现问题” * Environment.getRootDirectory() 无法更改文件读写权限 * getCacheDir()不能再此目录创建文件，再放入apk,也会提示“解析程序包时出现问题” */ public static String createFilePath(Context context, String s) {
        String path;
        if (isSdcard()) {
            path = Environment.getExternalStorageDirectory() + "/YJY/Save/" + s + "/";
            File file = new File(path);
            if (!file.exists() && !file.isDirectory()) {
                file.mkdirs();
            }
        } else {
            path = context.getCacheDir() + "/";
            File file = new File(path);
            chmod("777", file.getAbsolutePath());
            if (!file.exists() && !file.isDirectory()) {
                file.mkdirs();
            }
        }
        return path;
    }
    
    /** * 修改apk权限 */ public static void chmod(String permission, String path) {
        try {
            String command = "chmod " + permission + " " + path;
            Runtime runtime = Runtime.getRuntime();
            runtime.exec(command);
        } catch (IOException e) {
            Log.e("akui", "修改apk权限失败");
        }
    }
    
    /** * 是否存在sdcard */ public static boolean isSdcard() {
        try {
            return Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return false;
    }
    
    /** * 打开文件进行安装 */ public static void openFiles(Context context, File file) {
        chmod("777", file.getAbsolutePath());
        Intent intent = new Intent(Intent.ACTION_VIEW);
        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        intent.setDataAndType(Uri.fromFile(file), "application/vnd.android.package-archive");
        context.startActivity(intent);
    }

获取文件路径

Environment.getDataDirectory() = /data  
Environment.getDownloadCacheDirectory() = /cache  
Environment.getExternalStorageDirectory() = /mnt/sdcard  
Environment.getExternalStoragePublicDirectory(“test”) = /mnt/sdcard/test  
Environment.getRootDirectory() = /system  
getPackageCodePath() = /data/app/com.my.app-1.apk  
getPackageResourcePath() = /data/app/com.my.app-1.apk  
getCacheDir() = /data/data/com.my.app/cache  
getDatabasePath(“test”) = /data/data/com.my.app/databases/test  
getDir(“test”, Context.MODE\_PRIVATE) = /data/data/com.my.app/app\_test  
getExternalCacheDir() = /mnt/sdcard/Android/data/com.my.app/cache  
getExternalFilesDir(“test”) = /mnt/sdcard/Android/data/com.my.app/files/test  
getExternalFilesDir(null) = /mnt/sdcard/Android/data/com.my.app/files  
getFilesDir() = /data/data/com.my.app/files