android.os.Environment#buildPaths ( )源码实例Demo

@Override
public File[] getExternalFilesDirs(String type) {
    synchronized (mSync) {
        if (mExternalFilesDirs == null) {
            mExternalFilesDirs = Environment.buildExternalStorageAppFilesDirs(getPackageName());
        }

        // Splice in requested type, if any
        File[] dirs = mExternalFilesDirs;
        if (type != null) {
            dirs = Environment.buildPaths(dirs, type);
        }

        // Create dirs if needed
        return ensureExternalDirsExistOrFilter(dirs);
    }
}
 

@Override
public File[] getExternalFilesDirs(String type) {
    synchronized (mSync) {
        if (mExternalFilesDirs == null) {
            mExternalFilesDirs = Environment.buildExternalStorageAppFilesDirs(getPackageName());
        }

        // Splice in requested type, if any
        File[] dirs = mExternalFilesDirs;
        if (type != null) {
            dirs = Environment.buildPaths(dirs, type);
        }

        // Create dirs if needed
        return ensureDirsExistOrFilter(dirs);
    }
}
 

@Override
public File[] getExternalFilesDirs(String type) {
    synchronized (mSync) {
        if (mExternalFilesDirs == null) {
            mExternalFilesDirs = Environment.buildExternalStorageAppFilesDirs(getPackageName());
        }

        // Splice in requested type, if any
        File[] dirs = mExternalFilesDirs;
        if (type != null) {
            dirs = Environment.buildPaths(dirs, type);
        }

        // Create dirs if needed
        return ensureDirsExistOrFilter(dirs);
    }
}
 

@Override
public File[] getExternalFilesDirs(String type) {
    synchronized (mSync) {
        if (mExternalFilesDirs == null) {
            mExternalFilesDirs = Environment.buildExternalStorageAppFilesDirs(getPackageName());
        }

        // Splice in requested type, if any
        File[] dirs = mExternalFilesDirs;
        if (type != null) {
            dirs = Environment.buildPaths(dirs, type);
        }

        // Create dirs if needed
        return ensureDirsExistOrFilter(dirs);
    }
}
 

@Override
public File[] getExternalFilesDirs(String type) {
    synchronized (mSync) {
        if (mExternalFilesDirs == null) {
            mExternalFilesDirs = Environment.buildExternalStorageAppFilesDirs(getPackageName());
        }

        // Splice in requested type, if any
        File[] dirs = mExternalFilesDirs;
        if (type != null) {
            dirs = Environment.buildPaths(dirs, type);
        }

        // Create dirs if needed
        return ensureDirsExistOrFilter(dirs);
    }
}
 

@Override
public File[] getExternalFilesDirs(String type) {
    synchronized (mSync) {
        File[] dirs = Environment.buildExternalStorageAppFilesDirs(getPackageName());
        if (type != null) {
            dirs = Environment.buildPaths(dirs, type);
        }
        return ensureExternalDirsExistOrFilter(dirs);
    }
}
 

@Override
public File[] getExternalFilesDirs(String type) {
    synchronized (mSync) {
        File[] dirs = Environment.buildExternalStorageAppFilesDirs(getPackageName());
        if (type != null) {
            dirs = Environment.buildPaths(dirs, type);
        }
        return ensureExternalDirsExistOrFilter(dirs);
    }
}
 

@Override
public File[] getExternalFilesDirs(String type) {
    synchronized (mSync) {
        File[] dirs = Environment.buildExternalStorageAppFilesDirs(getPackageName());
        if (type != null) {
            dirs = Environment.buildPaths(dirs, type);
        }
        return ensureExternalDirsExistOrFilter(dirs);
    }
}
 

@Override
public File[] getExternalFilesDirs(String type) {
    synchronized (mSync) {
        File[] dirs = Environment.buildExternalStorageAppFilesDirs(getPackageName());
        if (type != null) {
            dirs = Environment.buildPaths(dirs, type);
        }
        return ensureExternalDirsExistOrFilter(dirs);
    }
}
 

@Override
public File[] getExternalFilesDirs(String type) {
    synchronized (mSync) {
        File[] dirs = Environment.buildExternalStorageAppFilesDirs(getPackageName());
        if (type != null) {
            dirs = Environment.buildPaths(dirs, type);
        }
        return ensureExternalDirsExistOrFilter(dirs);
    }
}
 

@Override
public File[] getExternalFilesDirs(String type) {
    synchronized (mSync) {
        File[] dirs = Environment.buildExternalStorageAppFilesDirs(getPackageName());
        if (type != null) {
            dirs = Environment.buildPaths(dirs, type);
        }
        return ensureExternalDirsExistOrFilter(dirs);
    }
}
 

@Override
public File[] getExternalFilesDirs(String type) {
    synchronized (mSync) {
        File[] dirs = Environment.buildExternalStorageAppFilesDirs(getPackageName());
        if (type != null) {
            dirs = Environment.buildPaths(dirs, type);
        }
        return ensureExternalDirsExistOrFilter(dirs);
    }
}