Android通过包名启动Activity

代码：

	private void startAppByPkgName(String pkgName){
	    Intent intent =null;

		intent = mContext.getPackageManager().getLaunchIntentForPackage(pkgName);

	    if(intent != null){
	    	mContext.startActivity(intent);
	    }
	}

原文：http://blog.csdn.net/heqiangflytosky/article/details/42552905