android 启动线程注意的问题

启动方法一：

private void startLoadBitmapThread(){ (new ReadBitmapRunnable(this, this.getContentResolver())).run(); }

启动方法二：

private void startLoadBitmapThread(){ Thread thread = new Thread(new ReadBitmapRunnable(this, this.getContentResolver())); thread.start(); }
线程类：

class ReadBitmapRunnable implements Runnable{ private Activity mActivity; private ContentResolver mContentResolver; public ReadBitmapRunnable(Activity pActivity, ContentResolver pContentResolver){ mActivity = pActivity; mContentResolver = pContentResolver; } @Override public void run() { // TODO Auto-generated method stub GinwaveDataSource.readAllAlbumPicture(mActivity, mContentResolver); GinwaveDataSource.readAllWhiteAlbumPicture(mActivity, mContentResolver); } }
使用方法一启动线程会阻塞主线程，而是用方法二不会阻塞主线程，两者的区别还没搞清楚。